A portable pick for expansion joints

Abstract

The utility model provides a portable air pick for expansion joint relates to the technical field of bridge expansion joint construction to solve the problem that the air pick for traditional bridge expansion joint maintenance is mostly integral heavy -duty structure, and the portability of heavy -duty structure is poor, and many people need to cooperate or help auxiliary tools in the process of bridge deck movement, up and down bridge transportation, portable carrying of air pick is realized through the design of air pick main part, bearing clamp frame, bearing pillar and connecting pillar, and the air pick is convenient to carry.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge expansion joint construction, and more specifically, it relates to a portable pneumatic pick for expansion joints. Background Technology

[0002] As a key component for mitigating the stress caused by thermal expansion and contraction in bridge structures, bridge expansion joints are exposed to complex outdoor environments for extended periods. They are prone to damage, deformation, or blockage due to factors such as vehicle traffic, rainwater erosion, and debris accumulation. Timely maintenance operations such as slotting, cleaning, and repair are necessary. Pneumatic picks, as the core tool for such operations, are widely used due to their advantages of high impact power and high demolition efficiency.

[0003] Based on the above, traditional pneumatic picks for bridge expansion joint maintenance are mostly integral heavy structures with an integrated design of the machine body and power components. This means that operators need to carry the machine by hand and work in a bent-over position throughout the process, resulting in extremely high labor intensity. The heavy structure has poor portability, and multiple people or auxiliary tools are required to work together or use them during the movement of the bridge deck and transportation on and off the bridge. This not only reduces maintenance efficiency but also increases the safety risks of on-site operations. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a portable pneumatic pick for expansion joints. This solves the problem that traditional pneumatic picks for bridge expansion joint maintenance are mostly integral heavy structures with an integrated design of the machine body and power components. This results in operators having to carry the machine by hand and bend over to work throughout the process, which is extremely labor-intensive. The heavy structure also has poor portability, requiring multiple people to work together or use auxiliary tools during bridge deck movement and transportation on and off the bridge. This not only reduces maintenance efficiency but also increases on-site safety risks.

[0005] This utility model discloses a portable pneumatic pick for expansion joints, achieved through the following specific technical means: A portable pneumatic pick for expansion joints comprises the following core components: a pneumatic pick body, a load-bearing frame, a load-bearing support column, and a connecting support column; The pneumatic pick body has a fixed pneumatic pick support head at its bottom, an impact pick head at its bottom, a positioning groove on its side, a positioning support frame on its outer side, and a positioning support at its top. A load-bearing frame is fitted over the positioning support frame, and a sliding block is fixedly mounted on its side. A load-bearing support column is slidably mounted inside the sliding block, has a threaded support groove at its bottom, a receiving top groove at its top, an assembly block fixedly mounted at its top, a rotating shaft block at its top, a fixing groove on its side, and a fixing bolt inside the fixing groove. A connecting column is threaded into the threaded support groove, has a guide groove on its side, a movable base column fitted over its outer side, a sliding groove at its top, and a carrying wheel at its bottom.

[0006] Furthermore, the side of the positioning support is also provided with a gripping frame, a gripping column, a limiting groove, and a limiting bolt; the gripping frame is fixedly installed on the top of the positioning support, the gripping column is fixedly installed on the inner side of the gripping frame, the limiting groove is opened on the side of the gripping frame, and the limiting bolt is installed on the inner side of the limiting groove.

[0007] Furthermore, the side of the load-bearing clamping frame is also provided with locking sleeves and locking bolts; the locking sleeves are fixedly installed at both ends of the load-bearing clamping frame, and the locking bolts are installed inside the locking sleeves.

[0008] Furthermore, the sliding block is also provided with a positioning groove and a positioning bolt on its side; the positioning groove is opened on the side of the sliding block, and the positioning bolt is located inside the positioning groove.

[0009] Furthermore, the limiting groove, rotating support frame, mounting side frame, and gripping side frame are provided; the limiting groove is opened on the side of the rotating shaft block, the rotating support frame is sleeved on the outside of the rotating shaft block, the mounting side frame is fixedly set on the side of the rotating support frame, and the gripping side frame is fixedly set on the side of the mounting side frame.

[0010] Furthermore, the side of the movable base column is also provided with a support spring, a sliding support frame, and a storage groove; the support spring is located inside the sliding groove, the sliding support frame is fixedly located at the top of the movable base column, and the storage groove is located at the bottom of the movable base column.

[0011] The portable pneumatic pick for expansion joints provided by this utility model has the following beneficial effects: This utility model achieves the following optimization effects by providing a pneumatic pick body, a load-bearing frame, a load-bearing support column, and a connecting support column: By employing a combined positioning structure of sliding blocks and positioning bolts, precise positioning and support of the connecting support can be quickly achieved. This allows the installation side frame to be securely mounted on both sides of the top of the pneumatic pick body via the connecting and bearing supports. Combined with the gripping side frame, this forms a reasonable force-bearing structure suitable for handheld operation. The gripping support frame inside the limiting groove supports the limiting bolts, providing reliable limiting reinforcement for the rotating shaft block. This further enhances the connection stability between the installation side frame and the pneumatic pick body. The pneumatic pick can be used by hand via the gripping side frame. When the pneumatic pick needs to be carried after use, the sliding block and positioning bolts work together to move the drive connecting support support wheels down to both sides of the impact pick head. At the same time, the bearing support drives the gripping side frame to rotate and retract, allowing the pneumatic pick to quickly switch to a push-pull portable structure with the gripping side frame and carrying wheels. This allows for easy handling and movement by a single person, significantly improving equipment portability and reducing transportation difficulties and labor intensity at bridge maintenance sites. Attached Figure Description

[0012] Figure 1 This is a structural diagram showing the overall assembly and unfolding of the portable pneumatic pick of this utility model; Figure 2 This is a structural diagram of the overall assembly and storage arrangement of the portable pneumatic pick of this utility model; Figure 3 This is a structural diagram illustrating the assembly and disassembly of the main components of the pneumatic pick of this utility model. Figure 4 This is a structural diagram illustrating the assembly and disassembly of the overall components of the load-bearing frame structure of this utility model; Figure 5 This is a structural diagram illustrating the assembly and disassembly of the overall components of the load-bearing support structure of this utility model; Figure 6 This is a structural diagram illustrating the assembly and disassembly of the overall components of the connecting support structure of this utility model.

[0013] Figure label: 1. Main body of the pneumatic pick; 101. Pneumatic pick support head; 102. Impact pick head; 103. Positioning slot; 104. Positioning support frame; 105. Positioning support; 1051. Holding support frame; 1052. Holding support column; 1053. Limiting support slot; 1054. Limiting bolt; 2. Load-bearing frame; 201. Locking support cylinder; 202. Locking bolt; 203. Sliding block; 204. Positioning groove; 205. Positioning bolt; 3. Support pillars; 301. Threaded support groove; 302. Top groove for receiving; 303. Assembly support block; 304. Fixed support groove; 305. Fixing bolt; 306. Rotating shaft block; 3061. Limiting groove; 307. Rotating support frame; 308. Mounting side frame; 309. Holding side frame; 4. Connecting support pillars; 401. Guide support groove; 402. Movable base column; 403. Sliding support groove; 404. Support spring; 405. Sliding support frame; 406. Storage groove; 407. Carrying support wheel. Detailed Implementation

[0014] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples.

[0015] Example 1: As Figures 1 to 6 As shown, the present invention provides a portable pneumatic pick for expansion joints, including a pneumatic pick body 1, a load-bearing frame 2, a load-bearing support column 3, and a connecting support column 4; A pneumatic hammer body 1 has a fixed pneumatic hammer support head 101 at its bottom, an impact hammer head 102 at its bottom, a positioning groove 103 on its side, a positioning support frame 104 fitted outside the positioning groove 103, and a positioning support 105 on its top. A load-bearing frame 2 is fitted outside the positioning support frame 104, and a sliding block 203 is fixedly mounted on its side. A load-bearing support column 3 is slidably mounted inside the sliding block 203, and a threaded support groove 301 is provided at the bottom of the support column 3. A storage compartment is provided at the top of the support column 3. The top groove 302 has an assembly block 303 fixedly installed on the top of the support column 3. The top of the assembly block 303 has a rotating shaft block 306. The side of the rotating shaft block 306 has a fixed support groove 304. The inside of the fixed support groove 304 has a fixing bolt 305. The connecting column 4 is set inside the threaded support groove 301 through a threaded structure. The side of the connecting column 4 has a guide support groove 401. The outside of the connecting column 4 is fitted with a movable bottom column 402. The top of the movable bottom column 402 has a sliding loading groove 403. The bottom of the movable bottom column 402 is equipped with a carrying support wheel 407.

[0016] Example 2: Figures 2 to 6As shown, the rotating shaft block 306 is also provided with a limiting groove 3061, a rotating support frame 307, a mounting side frame 308, and a gripping side frame 309 on its side. The limiting groove 3061 is opened on the side of the rotating shaft block 306, the rotating support frame 307 is sleeved on the outside of the rotating shaft block 306, the mounting side frame 308 is fixedly set on the side of the rotating support frame 307, and the gripping side frame 309 is fixedly set on the side of the mounting side frame 308. The moving base column 402 is also provided with a support spring 404, a sliding support frame 405, and a storage bottom groove 406 on its side. The support spring 404 is set inside the sliding groove 403, the sliding support frame 405 is fixedly set on the top of the moving base column 402, and the storage bottom groove 406 is opened at the bottom of the moving base column 402. The support spring 404 and the sliding support frame 405 can provide elastic sliding support for the moving base column 402.

[0017] Example 3: Figures 2 to 6 As shown, the positioning support 105 is also provided with a gripping frame 1051, a gripping column 1052, a limiting groove 1053, and a limiting bolt 1054 on its side; the gripping frame 1051 is fixedly installed on the top of the positioning support 105, the gripping column 1052 is fixedly installed on the inner side of the gripping frame 1051, the limiting groove 1053 is opened on the side of the gripping frame 1051, and the limiting bolt 1054 is installed on the inner side of the limiting groove 1053; the bearing clamp 2 is also provided with a locking support on its side. The cylinder 201 and locking bolt 202 are fixedly installed at both ends of the bearing clamp 2, and the locking bolt 202 is installed inside the locking cylinder 201; the sliding block 203 is also provided with a positioning groove 204 and a positioning bolt 205 on its side; the positioning groove 204 is opened on the side of the sliding block 203, and the positioning bolt 205 is installed inside the positioning groove 204; the pneumatic pick can be carried by pushing and pulling support through the gripping support frame 1051 and the gripping column 1052.

[0018] The specific usage and function of this embodiment are as follows: In use, the sliding block 203, in conjunction with the positioning bolt 205, positions and supports the connecting column 4, so that the connecting column 4, in conjunction with the bearing column 3, supports the mounting side frame 308, which is set on both sides of the top of the jackhammer body 1. The gripping support frame 1051 supports the limiting bolt 1054, which is set inside the limiting groove 3061, to limit and support the rotating shaft block 306, so that the rotating shaft block 306 provides a fixed and reinforced support for the mounting side frame 308. The mounting side frame 308, in conjunction with the gripping side frame 309, allows the jackhammer body to be held in hand. When the jackhammer needs to be carried after use, the sliding block 203, in conjunction with the positioning bolt 205, positions and supports the bearing column 3, so that the connecting column 4 supports the carrying wheel 407, which moves down and is set on both sides of the impact pick head 102. The bearing column 3 rotates and stores the gripping side frame 309. The gripping side frame 309, in conjunction with the carrying wheel 407, supports the entire jackhammer for push-pull portable carrying.

Claims

1. A portable pneumatic pick for expansion joints, mainly comprising the following components: a pneumatic pick body (1), a load-bearing frame (2), a load-bearing support column (3), and a connecting support column (4). The pneumatic pick body (1) is fixedly provided with a pneumatic pick support head (101) at the bottom, and an impact pick head (102) is provided at the bottom of the pneumatic pick support head (101). A positioning groove (103) is opened on the side of the pneumatic pick support head (101), and a positioning support frame (104) is fitted on the outside of the positioning groove (103). A positioning support (105) is provided on the top of the pneumatic pick body (1); characterized in that, The bearing clamp (2) is sleeved on the outside of the positioning support frame (104), and a sliding block (203) is fixedly provided on the side of the bearing clamp (2); the bearing support column (3) is slidably provided on the inside of the sliding block (203), and a threaded support groove (301) is opened at the bottom of the bearing support column (3), and a receiving top groove (302) is opened at the top of the bearing support column (3). An assembly support block (303) is fixedly provided at the top of the bearing support column (3), and a rotating shaft block (306) is provided at the top of the assembly support block (303). A fixed support groove (304) is provided on the side of the shaft block (306), and a fixing bolt (305) is provided on the inner side of the fixed support groove (304); the connecting support column (4) is provided on the inner side of the threaded support groove (301) through a threaded structure, a guide support groove (401) is provided on the side of the connecting support column (4), a movable bottom column (402) is sleeved on the outer side of the connecting support column (4), a sliding loading groove (403) is provided on the top of the movable bottom column (402), and a carrying support wheel (407) is provided at the bottom of the movable bottom column (402).

2. A portable pneumatic pick for expansion joints according to claim 1, characterized in that, The positioning support (105) is also provided with a gripping support frame (1051), a gripping support column (1052), a limiting support groove (1053), and a limiting bolt (1054) on its side. The gripping support frame (1051) is fixedly installed on the top of the positioning support (105), the gripping support column (1052) is fixedly installed on the inside of the gripping support frame (1051), the limiting support groove (1053) is opened on the side of the gripping support frame (1051), and the limiting bolt (1054) is installed on the inside of the limiting support groove (1053).

3. A portable pneumatic pick for expansion joints according to claim 1, characterized in that, The side of the load-bearing clamp (2) is also provided with a locking support cylinder (201) and a locking bolt (202); the locking support cylinder (201) is fixedly installed at both ends of the load-bearing clamp (2), and the locking bolt (202) is installed inside the locking support cylinder (201).

4. A portable pneumatic pick for expansion joints according to claim 1, characterized in that, The sliding block (203) is also provided with a positioning support groove (204) and a positioning bolt (205) on its side; the positioning support groove (204) is opened on the side of the sliding block (203), and the positioning bolt (205) is located inside the positioning support groove (204).

5. A portable pneumatic pick for expansion joints according to claim 1, characterized in that, The rotating shaft block (306) is also provided with a limiting groove (3061), a rotating support frame (307), a mounting side frame (308), and a gripping side frame (309) on its side. The limiting groove (3061) is opened on the side of the rotating shaft block (306), the rotating support frame (307) is sleeved on the outside of the rotating shaft block (306), the mounting side frame (308) is fixedly set on the side of the rotating support frame (307), and the gripping side frame (309) is fixedly set on the side of the mounting side frame (308).

6. A portable pneumatic pick for expansion joints according to claim 1, characterized in that, The movable base column (402) is also provided with a support spring (404), a sliding support frame (405) and a storage groove (406) on its side; the support spring (404) is located inside the sliding groove (403), the sliding support frame (405) is fixedly located at the top of the movable base column (402), and the storage groove (406) is located at the bottom of the movable base column (402).

Images