Auxiliary fixing tool for static pressure pile section welding
By designing an auxiliary fixture with a positioning ring and a purification component, the positioning and purification problems of welding in confined spaces were solved, achieving high-quality welding and health protection.
Patent Information
- Application Number
- CN202520341747.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing auxiliary fixing fixtures cannot be used in confined spaces, and the lack of positioning mechanisms causes weld seam misalignment, resulting in welding fumes that can harm health.
An auxiliary fixture including movable and purification components was designed. The welding gun is positioned by a positioning ring, the movable groove realizes circumferential welding, and the welding fume is removed by a fan and activated carbon filter.
It enables high-quality welding in confined spaces, avoids weld misalignment, protects the health of workers, and improves the welding environment.
Smart Images

Figure CN223776402U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of static pressure pile welding technology, and in particular relates to auxiliary fixing fixtures for welding static pressure pile segments. Background Technology
[0002] Static pressure piles are a common type of foundation pile. They are mainly driven into the ground by static pressure equipment and are suitable for foundations with high bearing capacity requirements. The pile segment of a static pressure pile refers to the segmented part of the static pressure pile during construction. Usually, the pile body is divided into several segments for the convenience of transportation, storage and construction. In order to ensure the firm and stable connection between the pile segments and to guarantee the overall bearing capacity and construction quality of the static pressure pile, they are welded during use. Auxiliary fixing tools are used during welding.
[0003] Existing auxiliary fixing fixtures can achieve good fixation when fixing static pressure pile segments, but because they are mostly large, they cannot be used in confined spaces. Furthermore, they lack positioning and purification mechanisms, which leads to weld misalignment when welding static pressure pile segments in confined spaces, affecting welding quality. Welding fumes generated during welding can easily permeate the confined space and be inhaled by workers, causing harm to their health and affecting the welding working environment. To address these issues, we provide auxiliary fixing fixtures for welding static pressure pile segments. Utility Model Content
[0004] The purpose of this utility model is to provide an auxiliary fixing fixture for welding static pressure pile segments. Through the cooperation of movable components and purification components, it solves the problems of existing auxiliary fixing fixtures being unable to be used in confined spaces and lacking positioning and purification mechanisms, which leads to easy displacement of the weld and welding fumes causing harm to workers.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.
[0006] This utility model is an auxiliary fixing fixture for welding static pressure pile segments, including an upper clamping plate and a lower clamping plate at the bottom of the upper clamping plate; a movable component is provided at the bottom of the upper clamping plate, the movable component includes a movable groove, the movable groove is opened at the top of the lower clamping plate, a positioning ring is provided at the top of the movable groove, a purification component is provided at the bottom of the lower clamping plate, the purification component includes a toothed plate, the toothed plate is located at the bottom of the lower clamping plate, a fixing cylinder is provided on one side of the toothed plate, and a fan is provided inside the fixing cylinder.
[0007] The present invention is further configured such that the movable component also includes a movable block, the movable block being located within the movable slot.
[0008] The present invention is further configured such that the purification component includes a connecting rod, one side of which is fixedly connected to a positioning ring, and the other side of which is fixedly connected to a toothed plate. A conduit is connected to the top of the fixed cylinder, a rotating rod is movably connected to the top of the fixed cylinder, an activated carbon filter is movably connected to the surface of the rotating rod, a gear is provided at the bottom of the fixed cylinder, and an air outlet pipe is connected to one side of the fixed cylinder.
[0009] The present invention is further configured such that a limiting block is fixedly connected to the top of the toothed plate, and a limiting groove is formed at the bottom of the lower clamping plate.
[0010] The present invention is further configured such that a support rod is provided on one side of the upper clamping plate, a support plate is fixedly connected to one side of the support rod, a cylinder is fixedly connected to one side of the support plate, and a reinforcing plate is fixedly connected to one side of the cylinder.
[0011] The present invention is further configured such that a fixing rod is provided on one side of the upper clamping plate, and a control button is provided on one side of the fixing rod.
[0012] The present invention is further configured such that dustproof nets are fixedly connected to the top of the duct and the bottom of the air outlet, and the gear is fixedly connected to the surface of the rotating rod.
[0013] This utility model has the following beneficial effects: The handheld design allows the entire fixture to be used in a confined space. The positioning ring positions the welding torch so that it is directly facing the welding position, and a simple rotation of the welding torch can achieve circumferential welding, ensuring welding quality. During the circumferential welding process, the connecting rod and toothed plate drive the gear to rotate, thereby rotating the fan. Under the action of the duct, the area above the movable groove is kept in a negative pressure state, drawing the welding fumes generated during welding into the fixed cylinder through the duct and removing them through the activated carbon filter, thus protecting the health of the workers and ensuring the welding working environment. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0015] Figure 1 A three-dimensional view of the auxiliary fixing fixture for welding static pressure pile segments.
[0016] Figure 2 This is a diagram showing the open state of the lower clamping plate in the auxiliary fixing fixture used for welding static pressure pile segments.
[0017] Figure 3 A sectional view of the lower clamping plate in the auxiliary fixing fixture for welding static pressure pile segments.
[0018] Figure 4A cross-sectional view of the fixing cylinder in the auxiliary fixing fixture for welding static pressure pile segments.
[0019] Figure 5 Left view of the auxiliary fixing fixture for welding static pressure pile segments.
[0020] In the attached diagram: 1. Upper clamping plate; 2. Lower clamping plate; 3. Movable groove; 4. Positioning ring; 5. Toothed plate; 6. Fixed cylinder; 7. Fan; 8. Movable block; 9. Connecting rod; 10. Conduit; 11. Rotating rod; 12. Activated carbon filter; 13. Gear; 14. Air outlet pipe; 15. Limiting block; 16. Limiting groove; 17. Support rod; 18. Support plate; 19. Cylinder; 20. Reinforcing plate; 21. Fixed rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Example 1
[0023] Please see Figure 1-5 This utility model is an auxiliary fixing fixture for welding static pressure pile segments, including an upper clamping plate 1, and a lower clamping plate 2 at the bottom of the upper clamping plate 1; a movable component is provided at the bottom of the upper clamping plate 1, the movable component includes a movable groove 3, the movable groove 3 is opened at the top of the lower clamping plate 2, a positioning ring 4 is provided at the top of the movable groove 3, a purification component is provided at the bottom of the lower clamping plate 2, the purification component includes a toothed plate 5, the toothed plate 5 is located at the bottom of the lower clamping plate 2, a fixing cylinder 6 is provided on one side of the toothed plate 5, and a fan 7 is provided inside the fixing cylinder 6.
[0024] Specifically: the upper clamping plate 1, the lower clamping plate 2, and the toothed plate 5 are all semi-circular, which can form a complete circle when fixing the static pressure pile segment, suitable for welding long column-shaped static pressure pile segments. The positioning ring 4 is used to position the welding gun. During welding, the welding gun can be inserted into the positioning ring 4 for use. The toothed plate 5 meshes with the gear 13. The top of the fixing cylinder 6 is fixedly connected to the lower clamping plate 2. The fan 7 is fixedly connected to the surface of the rotating rod 11.
[0025] Example 2
[0026] Please see Figure 1-5Based on Embodiment 1, the movable component also includes a movable block 8 located in the movable groove 3. The purification component also includes a connecting rod 9, one side of which is fixedly connected to the positioning ring 4, and the other side of which is fixedly connected to the toothed plate 5. The top of the fixed cylinder 6 is connected to a conduit 10. The top of the fixed cylinder 6 is movably connected to a rotating rod 11. An activated carbon filter 12 is movably connected to the surface of the rotating rod 11. A gear 13 is provided at the bottom of the fixed cylinder 6. An air outlet pipe 14 is connected to one side of the fixed cylinder 6. A limit block 15 is fixedly connected to the top of the toothed plate 5. A limit groove 16 is provided at the bottom of the lower clamping plate 2. A support rod 17 is provided on one side of the upper clamping plate 1. A support plate 18 is fixedly connected to one side of the support rod 17. A cylinder 19 is fixedly connected to one side of the support plate 18. A reinforcing plate 20 is fixedly connected to one side of the cylinder 19. A fixed rod 21 is provided on one side of the upper clamping plate 1. A control button is provided on one side of the fixed rod 21. Dustproof nets are fixedly connected to the top of the conduit 10 and the bottom of the air outlet pipe 14. The gear 13 is fixedly connected to the surface of the rotating rod 11.
[0027] Specifically: the support plate 18 is fixedly connected to the fixed rod 21; the movable groove 3 is semi-circular; when the lower clamping plate 2 is assembled into a complete circle, the movable block 8 can slide within the movable groove 3 to perform circumferential welding, preventing weld misalignment; the duct 10 is fixedly connected to the lower clamping plate 2; the air inlet end of the duct 10 is located within the movable groove 3; a support column is fixedly connected to the bottom of the movable block 8; the bottom of the support column contacts the bottom of the movable groove 3; the bottom of the support column is hemispherical to ensure the smoothness and stability of the movable block 8 sliding within the movable groove 3; the top of the rotating rod 11 is movably connected to the top of the fixed cylinder 6 via a bearing; the activated carbon filter is movably connected to the surface of the rotating rod 11 via a bearing. The activated carbon filter is fixedly connected to the fixed cylinder 6. The rotating rod 11 is movably connected to the fixed cylinder 6 through a sealed bearing. The limiting groove 16 is also semi-circular. The limiting block 15 can slide in the limiting groove 16. The support plate 18 is fixedly connected to the support rod 17. The upper clamping plate 1 and lower clamping plate 2 on the left side are fixedly connected to the fixed rod 21. The upper clamping plate 1 and lower clamping plate 2 on the right side are fixedly connected to the reinforcing plate 20. The movable block 8 is fixedly connected to the positioning ring 4. The control button is fixedly connected to the support plate 18. The air outlet pipe 14 can be connected to the smoke exhaust pipe. On the one hand, it can guide the airflow. On the other hand, it can guide the welding fume when the activated carbon filter 12 fails.
[0028] The working principle of this utility model is as follows: the welding torch is inserted into the positioning ring 4, and the entire tool is held and placed into the narrow space. The cylinder 19 is activated to open the upper clamping plate 1 and the lower clamping plate 2. The static pressure pile segment is passed through the upper clamping plate 1 and the lower clamping plate 2. The pile segment to be welded is placed between the two upper clamping plates 1, and the welding position is aligned with the center of the positioning ring 4. The cylinder 19 is activated to reset the upper clamping plate 1 and the lower clamping plate 2, thereby fixing the two static pressure pile segments.
[0029] The positioning ring 4 is pushed to perform circumferential welding at the welding position to avoid weld seam displacement and ensure welding quality. During the welding process, the connecting rod 9 drives the toothed plate 5 to rotate, and the gear 13 drives the rotating rod 11 to rotate. The rotation of the rotating rod 11 drives the fan 7 to rotate. Under the action of the duct 10, the area above the movable groove 3 is continuously under negative pressure, which draws the welding fumes generated during welding into the fixed cylinder 6 through the duct 10 and removes them by the activated carbon filter 12, thereby protecting the health of the workers.
[0030] After welding is completed, the cylinder 19 is activated to open the upper clamping plate 1 and the lower clamping plate 2. The entire fixture is then moved upwards through the welded static pressure pile, allowing the fixture to be removed for convenient use.
[0031] All standard parts used in this utility model can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.
[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.
Claims
1. An auxiliary fixing fixture for welding static pressure pile segments, including an upper clamping plate (1), characterized in that: The lower clamping plate (2) is provided at the bottom of the upper clamping plate (1); The upper clamping plate (1) is provided with a movable component at its bottom. The movable component includes a movable groove (3). The movable groove (3) is opened at the top of the lower clamping plate (2). A positioning ring (4) is provided at the top of the movable groove (3). A purification component is provided at the bottom of the lower clamping plate (2). The purification component includes a toothed plate (5). The toothed plate (5) is located at the bottom of the lower clamping plate (2). A fixed cylinder (6) is provided on one side of the toothed plate (5). A fan (7) is provided inside the fixed cylinder (6).
2. The auxiliary fixing fixture for welding static pressure pile segments according to claim 1, characterized in that: The active component also includes an active block (8) located within the active slot (3).
3. The auxiliary fixing fixture for welding static pressure pile segments according to claim 1, characterized in that: The purification assembly also includes a connecting rod (9), one side of which is fixedly connected to a positioning ring (4), and the other side of which is fixedly connected to a toothed plate (5). The top of the fixed cylinder (6) is connected to a conduit (10), and the top of the fixed cylinder (6) is movably connected to a rotating rod (11). An activated carbon filter (12) is movably connected to the surface of the rotating rod (11). A gear (13) is provided at the bottom of the fixed cylinder (6), and an air outlet pipe (14) is connected to one side of the fixed cylinder (6).
4. The auxiliary fixing fixture for welding static pressure pile segments according to claim 1, characterized in that: The toothed plate (5) is fixedly connected to the top of the limiting block (15), and the lower clamping plate (2) has a limiting groove (16) at the bottom.
5. The auxiliary fixing fixture for welding static pressure pile segments according to claim 1, characterized in that: A support rod (17) is provided on one side of the upper clamping plate (1), a support plate (18) is fixedly connected to one side of the support rod (17), a cylinder (19) is fixedly connected to one side of the support plate (18), and a reinforcing plate (20) is fixedly connected to one side of the cylinder (19).
6. The auxiliary fixing fixture for welding static pressure pile segments according to claim 1, characterized in that: A fixing rod (21) is provided on one side of the upper clamping plate (1), and a control button is provided on one side of the fixing rod (21).
7. The auxiliary fixing fixture for welding static pressure pile segments according to claim 3, characterized in that: Dustproof nets are fixedly connected to the top of the duct (10) and the bottom of the air outlet pipe (14), and the gear (13) is fixedly connected to the surface of the rotating rod (11).