Drill rod clamping device for stirring drilling machine

Abstract

The utility model relates to the technical field of stirring drilling machines, and discloses a drill rod clamping device for a stirring drilling machine, which comprises a fixing frame, two through grooves are formed in the surface of the fixing frame, a telescopic rod is arranged in each through groove, a connecting rod is arranged in each through groove, a limiting groove is formed in the surface of each connecting rod, and the telescopic rods are arranged in the limiting grooves. Two through grooves are formed in the surface of the fixing frame, a limiting groove is formed in the surface of the fixing frame, the bottom end of each telescopic rod penetrates through the limiting groove and extends into the limiting groove, the bottom end of each telescopic rod is hinged to a connecting rod through a pin shaft, and the bottom end of each connecting rod is connected with a clamping structure. When the telescopic rod stretches out and draws back, the connecting rod can be driven to rotate around the fixing block, so that opening and closing actions of the clamping structure are achieved, the limiting groove in the surface of the connecting rod is matched with the bottom end of the telescopic rod, the moving track of the telescopic rod is limited, and shaking or deviation in the clamping process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mixing drill technology, specifically a drill rod clamping device for mixing drills. Background Technology

[0002] A mixing drill is a type of mechanical equipment used in foundation engineering construction. It is mainly used to mix cement, lime, and other solidifying agents with soft soil to form reinforced soil with a certain strength and stability.

[0003] During the construction of a mixing drilling rig, the clamping and fixing of the drill rod is crucial. Existing drill rod clamping devices are mostly simple in structure and lack sufficient clamping stability. During drilling operations, the drill rod is prone to shaking or even loosening, affecting construction accuracy and efficiency, and posing certain safety hazards. Furthermore, some clamping devices are complex to operate, hindering the quick installation and removal of the drill rod, increasing construction time costs. In addition, existing clamping devices have poor adaptability to different specifications of drill rods, failing to meet diverse construction needs. Therefore, there is an urgent need to design a new type of drill rod clamping device for mixing drilling rigs to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a drill rod clamping device for a mixing drill to solve the problems of existing mixing drill rod clamping devices, which have simple structure, poor clamping stability, easy shaking and loosening of drill rods, affecting construction accuracy and efficiency and posing safety hazards, complicated operation, difficulty in quick assembly and disassembly of drill rods, and poor adaptability to different specifications of drill rods, making it difficult to meet diverse construction needs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drill rod clamping device for a mixing drill, comprising a fixed frame, two through slots on the surface of the fixed frame, a telescopic rod installed inside each through slot, a connecting rod provided inside each through slot, a limiting groove on the surface of each connecting rod, the bottom end of each telescopic rod penetrating the limiting groove and extending into the limiting groove, the bottom end of each telescopic rod being hinged to the connecting rod via a pin, and a clamping structure connected to the bottom end of each connecting rod.

[0006] Preferably, each of the clamping structures includes an anti-slip rubber pad, and each of the anti-slip rubber pads has an arc-shaped groove on its outer surface.

[0007] Preferably, each of the anti-slip rubber pads is equipped with a first bolt on its exterior, and each of the anti-slip rubber pads is connected to a connecting block via the first bolt.

[0008] Preferably, each of the connecting blocks is externally fitted with four second bolts, and each connecting block is connected to the connecting rod by the second bolts.

[0009] Preferably, each of the through slots has two fixing blocks installed inside, and each fixing block is hinged to the connecting rod by a pin.

[0010] Preferably, a limiting hole is provided on the upper part of the fixing frame, and a drill rod body is provided on the upper part of the fixing frame. The bottom end of the drill rod body passes through the limiting hole and extends to the outside of the fixing frame.

[0011] Preferably, four screws are mounted on the surface of the fixing frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention features a telescopic rod installed in two through slots on the surface of the fixed frame. The rod is hinged to a connecting rod via a pin, forming an adjustable mechanical structure. When the telescopic rod extends or retracts, it drives the connecting rod to rotate around the fixed block, thus opening and closing the clamping structure. This design maintains stability during clamping through the rigid support of the telescopic rod, while the hinged structure allows for flexible adjustment of the clamping angle to accommodate drill rods of different diameters or orientations. The limiting groove on the surface of the connecting rod engages with the bottom of the telescopic rod, restricting its movement and preventing wobbling or displacement during clamping. This design ensures the precision of the clamping action, preventing drill rod detachment or unstable clamping due to structural loosening, and improving the reliability of the device during drilling operations. Attached Figure Description

[0014] Figure 1 A perspective view of a drill rod clamping device for a mixing drill provided by this utility model;

[0015] Figure 2 Top view provided for this utility model;

[0016] Figure 3 A perspective view of the connecting rod provided by this utility model;

[0017] Figure 4 A perspective view of the clamping structure provided by this utility model.

[0018] In the diagram: 1. Fixing frame; 2. Through groove; 3. Screw; 4. Limiting hole; 5. Drill rod body; 6. Telescopic rod; 7. Connecting rod; 8. Limiting groove; 9. Fixing block; 10. Clamping structure; 101. Second bolt; 102. Connecting block; 103. First bolt; 104. Anti-slip rubber pad; 105. Arc-shaped groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 As shown, a drill rod clamping device for a mixing drill includes a fixed frame 1. Two through slots 2 are formed on the surface of the fixed frame 1. A telescopic rod 6 is installed inside each through slot 2, and a connecting rod 7 is also provided inside each through slot 2. A limiting groove 8 is formed on the surface of each connecting rod 7. The bottom end of each telescopic rod 6 passes through the limiting groove 8 and extends into its interior. The bottom end of each telescopic rod 6 is hinged to the connecting rod 7 via a pin. A clamping structure 10 is connected to the bottom end of each connecting rod 7. Through the symmetrical distribution of the two through slots 2, and in conjunction with the telescopic movement of the telescopic rod 6, the rotation angle of the connecting rod 7 can be controlled, thereby enabling the opening and closing of the clamping structure 10. The limiting groove 8 allows the telescopic rod 6 to be hinged to the connecting rod 7, enabling the connecting rod 7 to rotate. This ensures stable transmission of clamping force and prevents unstable clamping of the drill rod body 5 due to structural loosening. Simultaneously, the symmetrical structure ensures that the clamping force is evenly distributed on both sides of the drill rod body 5, effectively preventing eccentric force on the drill rod body 5 and improving the stability and reliability of the device during operation.

[0021] refer to Figure 3 and Figure 4 As shown, each clamping structure 10 includes an anti-slip rubber pad 104. Each anti-slip rubber pad 104 has an arc-shaped groove 105 on its outer side. The anti-slip rubber pad 104 is made of elastic material, which can closely fit the surface of the drill rod body 5, increase the contact area, and generate a buffering effect by utilizing the elastic deformation of the rubber, thereby reducing the vibration and impact between the drill rod body 5 and the clamping structure 10 when the drilling machine is working, and protecting the surface of the drill rod body 5 from damage.

[0022] refer to Figure 4 As shown, each anti-slip rubber pad 104 is equipped with a first bolt 103 on its exterior. Each anti-slip rubber pad 104 is connected to a connecting block 102 via the first bolt 103. The first bolt 103 connects the anti-slip rubber pad 104 and the connecting block 102 to form a detachable structure. When the anti-slip rubber pad 104 wears down due to long-term use, resulting in a decrease in anti-slip performance, the anti-slip rubber pad 104 can be quickly replaced by removing the first bolt 103 without disassembling the entire clamping structure 10, which greatly reduces maintenance costs and time costs.

[0023] refer to Figure 4As shown, each connecting block 102 is equipped with four second bolts 101 on its exterior. Each connecting block 102 is connected to the connecting rod 7 by the second bolts 101. The four second bolts 101 securely connect the connecting block 102 to the connecting rod 7, ensuring that the clamping structure 10 will not loosen or fall off when transmitting clamping force. During maintenance or repair, the clamping structure 10 can be completely disassembled from the connecting rod 7, which facilitates the inspection, cleaning and replacement of internal parts, improving the maintainability and service life of the device.

[0024] refer to Figure 1 and Figure 3 As shown, each through slot 2 has two fixing blocks 9 installed inside. Each fixing block 9 is hinged to the connecting rod 7 by a pin. The fixing block 9 provides a stable hinge fulcrum for the connecting rod 7, ensuring that the connecting rod 7 is subjected to uniform force during rotation, reducing mechanical wear caused by shaking or offset, and extending the service life of the device. The pin hinge makes the rotation of the connecting rod 7 more flexible and smooth, reducing motion resistance.

[0025] refer to Figure 1 and Figure 2 As shown, a limiting hole 4 is provided on the upper part of the fixing frame 1, and a drill rod body 5 is provided on the upper part of the fixing frame 1. The bottom end of the drill rod body 5 passes through the limiting hole 4 and extends to the outside of the fixing frame 1. The limiting hole 4 plays a preliminary positioning role for the drill rod body 5, ensuring that the drill rod body 5 penetrates the fixing frame 1 vertically before clamping, avoiding eccentricity or tilting during clamping, and improving clamping accuracy.

[0026] refer to Figure 1 As shown, four screws 3 are installed on the surface of the fixing frame 1. The fixing frame 1 is connected to the main body by the four screws 3. The fixing frame 1 is connected to the drilling rig main body by the four screws 3. The installation method is simple and convenient, and can provide sufficient connection strength to ensure that the fixing frame 1 will not loosen or shift when the drilling rig is working. During equipment maintenance or repair, the clamping device can also be easily removed from the main body for easy overall inspection and maintenance.

[0027] Working principle: When the mixing drill is working, the drill rod body 5 is positioned through the limiting hole 4. Then, when the telescopic rod 6 extends, its bottom end slides along the limiting groove 8 opened in the connecting rod 7, pushing the connecting rod 7 to rotate around the fixed block 9. This causes the anti-slip rubber pad 104 on the clamping structure 10 to tightly adhere to the surface of the drill rod body 5, achieving clamping by utilizing the friction locking principle. When the telescopic rod 6 retracts, it drives the connecting rod 7 in the opposite direction, releasing the drill rod body 5. The connection between the first bolt 103 and the second bolt 101 facilitates the replacement of the anti-slip rubber pad 104. The symmetrical structure and hinged support ensure stable clamping, achieving reliable clamping and flexible operation of the drill rod body 5 during drilling operations.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drill rod clamping device for a mixing drill, comprising a fixing frame, characterized in that, The surface of the fixing frame has two through slots, each through slot has a telescopic rod installed inside, each through slot has a connecting rod inside, each connecting rod has a limiting slot on its surface, the bottom end of each telescopic rod passes through the limiting slot and extends into the limiting slot, the bottom end of each telescopic rod is hinged to the connecting rod by a pin, and the bottom end of each connecting rod is connected to a clamping structure.

2. The drill rod clamping device for a mixing drill according to claim 1, characterized in that: Each of the clamping structures includes an anti-slip rubber pad, and each of the anti-slip rubber pads has an arc-shaped groove on its outer surface.

3. The drill rod clamping device for a mixing drill according to claim 2, characterized in that: Each of the anti-slip rubber pads is fitted with a first bolt on its exterior, and each of the anti-slip rubber pads is connected to a connecting block via the first bolt.

4. The drill rod clamping device for a mixing drill according to claim 3, characterized in that: Each of the connecting blocks is externally fitted with four second bolts, and each connecting block is connected to the connecting rod by means of the second bolts.

5. The drill rod clamping device for a mixing drill according to claim 1, characterized in that: Each of the through slots has two fixing blocks installed inside, and each fixing block is hinged to the connecting rod by a pin.

6. The drill rod clamping device for a mixing drill according to claim 1, characterized in that: A limiting hole is provided above the fixing frame, and a drill rod body is provided above the fixing frame. The bottom end of the drill rod body passes through the limiting hole and extends to the outside of the fixing frame.

7. The drill rod clamping device for a mixing drill according to claim 1, characterized in that: The surface of the mounting bracket is fitted with four screws.

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