Drill rod spring inserted by using positioning pin

Abstract

The utility model discloses a drill rod spring using a positioning pin for insertion, and relates to the field of drill rod springs, the drill rod spring comprises a drill rod body and a fixing block, the bottom of the drill rod body is provided with the fixing block, the bottom of the fixing block is connected with a spring, one end of the spring is connected with a base, and the bottom of the base is provided with an insertion rod. An upper cover is installed at the bottom of the fixing block through a bolt, and a lower cover is installed above the base. The problem that the spring is clamped by soil chips or broken bricks, and consequently construction is inconvenient is solved, the two sets of lower covers are fixed to the base, then the two sets of upper covers are installed on the fixing blocks, at the moment, the peripheries of the baffles are attached to the inner walls of the upper covers, when the drill rod works, the spring stretches out and draws back continuously, and the drill rod is fixed. The baffle, the upper cover and the lower cover can isolate obstacles outside, construction pause caused by the fact that the obstacles clamp the spring is avoided, the lower cover and the baffle can move up and down in the upper cover, the spring cannot be limited, and the spring can be used normally.

Description

Technical Field

[0001] The utility model relates to the field of drill rod springs, in particular to a drill rod spring which is plugged in by using a positioning pin. Background Art

[0002] The rotary drilling rig is a multifunctional and efficient equipment for drilling holes for bored piles. The rotary drilling construction utilizes the rotation of the drill rod and drill bucket. The weight of the drill bucket and hydraulic pressure are used as the drilling pressure. When the drill bucket is filled with soil debris, the drill bucket is lifted out of the ground. Through the rotation of the drill bucket, soil is excavated, lifted, unloaded and mud is replaced, and holes are formed through repeated cycles, providing conditions for subsequent work. The drill rod is composed of a drill rod, a guide frame, a spring and a plug rod.

[0003] The work of drilling rods is carried out in places with a lot of dirt and broken bricks such as the ground or walls. This causes the drill rod springs to often be stuck by dirt or broken bricks, resulting in an unsmooth construction process. The dirt wrapped around the springs needs to be cleaned regularly. Currently, the main cleaning method is to flush the dirt from the spring connection with a high-pressure water gun, or to manually clean the obstructions.

[0004] However, whether it is cleaning with a high-pressure water gun or manually, the construction needs to be suspended at the beginning, and the construction can only be continued after the obstacles are cleared. Moreover, if the jam is difficult to clean, the entire spring needs to be disassembled, which is a more troublesome process and has a higher construction cost. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a drill rod spring that is plugged in using a positioning pin to solve the technical problem that the spring may be stuck by soil debris or broken bricks, causing construction inconvenience.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drill rod spring that is connected by means of a positioning pin, comprising a drill rod body and a fixed block, a fixed block being installed at the bottom of the drill rod body, and a spring being connected to the bottom of the fixed block, one end of the spring being connected to a base, and an insertion rod being installed at the bottom of the base, an upper cover being installed at the bottom of the fixed block by bolts, and a lower cover being installed above the base.

[0007] By adopting the above technical solution, the problem that the spring may be stuck by dirt or broken bricks, causing inconvenience in construction is solved. First, the two sets of lower covers are fixed on the base, and then the two sets of upper covers are installed on the fixed block. At this time, the outer periphery of the baffle is in contact with the inner wall of the upper cover. When the drill rod is working, the spring continuously expands and contracts. The baffle, upper cover and lower cover will isolate all obstacles from the outside, thus preventing the spring from being stuck by obstacles and causing construction to be suspended. The lower cover and the baffle can move up and down inside the upper cover, and will not restrict the spring. The spring can be used normally. The upper cover and the lower cover are both detachable. When the spring is maintained, the upper cover and the lower cover can be removed for maintenance and inspection.

[0008] The utility model is further configured that a telescopic rod is fixed to one side of the base, and one end of the telescopic rod passes through the fixing block until the one end of the telescopic rod is inserted into the interior of the drill rod body.

[0009] By adopting the above technical solution, when the spring is repeatedly contracted and the rope is pulled, the telescopic rod can move toward the inside of the drill rod body, and the telescopic rod plays a good supporting and connecting role for the connection between the fixed block and the base.

[0010] The utility model is further configured that the upper cover is semicircular in a top view, and the two groups of upper covers together form a full circle.

[0011] By adopting the above technical solution, after the two sets of upper covers are spliced ​​together, obstacles can be blocked outside the upper covers, thereby preventing the obstacles from contacting the springs.

[0012] The utility model is further configured that a first mounting block is fixed to one side of the upper cover.

[0013] By adopting the above technical solution, the first mounting block provides an installation space for the bolts, so that the upper cover can be firmly installed on the fixing block.

[0014] The utility model is further configured that the outer wall of the plug rod is provided with a plurality of groups of plug holes, and two high-position plug holes are provided on the front and rear sides of the plug rod, and two low-position plug holes are provided on the left and right sides of the plug rod.

[0015] By adopting the above technical solution, the four jacks are opposite to each other in pairs, which is convenient for the positioning pins to be connected.

[0016] The utility model is further configured that a second mounting block is fixed on one side of the lower cover, a baffle is fixed on the other side of the lower cover, and an outer wall of the baffle is fitted with an inner wall of the upper cover.

[0017] By adopting the above technical solution, the baffle fits with the inner wall of the upper cover, reducing the area of ​​the lower cover directly contacting the upper cover, reducing the friction between the upper cover and the lower cover, and isolating obstacles from being stuck between the upper cover and the lower cover, avoiding the two from getting stuck during operation.

[0018] The utility model is further configured such that the connection between the two groups of upper covers is in a tooth shape, and the connection between the two groups of lower covers is in a tooth shape.

[0019] By adopting the above technical solution, if the two sets of upper covers are spliced ​​together in a straight line, they will cause deviation during operation, causing obstacles to enter the internal space through the gap. The two sets of upper covers can be spliced ​​together to avoid such problems.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] The utility model solves the problem that the spring may be stuck by dirt or broken bricks, causing inconvenience in construction, by providing a fixing block, a base, a spring, a telescopic rod, an upper cover, a first mounting block, a lower cover, a second mounting block, a baffle and bolts. First, two groups of lower covers are fixed to the base, and then the two groups of upper covers are installed on the fixing block. At this time, the outer periphery of the baffle is in contact with the inner wall of the upper cover. When the drill rod is working, the spring is continuously extended and retracted. The baffle, the upper cover and the lower cover can isolate obstacles from the outside, thereby preventing the obstacles from getting the spring stuck and causing construction to be suspended. The lower cover and the baffle can move up and down inside the upper cover, and will not restrict the spring, so the spring can be used normally. The upper cover and the lower cover are both detachable. When the spring is maintained, the upper cover and the lower cover can be removed for maintenance and inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the connection between the base and the plug rod of the utility model;

[0024] Figure 3 This is a schematic diagram of the working state of the spring of the utility model when it is compressed;

[0025] Figure 4 This is a schematic diagram of the working state of the spring of the utility model when it is stretched;

[0026] Figure 5 This is a schematic diagram of the upper cover and lower cover opening operation of the utility model;

[0027] Figure 6 It is a schematic diagram of the closing operation of the upper cover and the lower cover of the utility model.

[0028] In the figure: 1, drill rod body; 2, fixing block; 3, base; 4, plug rod; 41, plug hole; 5, spring; 6, telescopic rod; 7, upper cover; 71, first mounting block; 8, lower cover; 81, second mounting block; 82, baffle; 9, bolt. DETAILED DESCRIPTION

[0029] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0030] The following describes an embodiment of the utility model based on its overall structure.

[0031] A drill rod spring that utilizes a positioning pin for insertion, such as Figure 1 - Figure 5 As shown, it includes a drill rod body 1 and a fixing block 2, and the fixing block 2 is installed at the bottom of the drill rod body 1.

[0032] Specifically, a spring 5 is connected to the bottom of the fixed block 2, one end of the spring 5 is connected to the base 3, and a plug rod 4 is installed at the bottom of the base 3. The plug rod 4 pushes the base 3 to move upward and squeezes the spring 5, so that the telescopic rod 6 is inserted into the drill pipe body 1. An upper cover 7 is installed at the bottom of the fixed block 2 by bolts 9, and a lower cover 8 is installed above the base 3. The two groups of lower covers 8 installed on the base 3 also move upward synchronously, and the baffle 82 fits with the inner wall of the upper cover 7 and slides upward to prevent soil debris from entering the protective cover so that the soil debris will not contact the spring 5; when the base 3 moves downward, the baffle 82 fits with the inside of the upper cover 7 and slides downward to push the soil debris outward, thereby reducing the pushing of soil debris between the lower cover 8 and the upper cover 7, avoiding the need to clean up soil debris and causing construction to be suspended.

[0033] See also Figure 1 and Figure 2 A telescopic rod 6 is fixed on one side of the base 3, and one end of the telescopic rod 6 passes through the fixed block 2 until one end of the telescopic rod 6 is inserted into the drill rod body 1. When the spring 5 is repeatedly contracted and the rope is pulled, the telescopic rod 6 can move into the drill rod body 1, and the telescopic rod 6 plays a good supporting and connecting role, and is used to connect the fixed block 2 and the base 3.

[0034] See also Figure 5 and Figure 6 The top view of the upper cover 7 is semicircular, and the two sets of upper covers 7 together form a full circle. After the two sets of upper covers 7 are spliced ​​together, obstacles can be blocked outside the upper covers 7 to prevent the obstacles from contacting the spring 5.

[0035] See also Figure 5 and Figure 6 A first mounting block 71 is fixed to one side of the upper cover 7 , and the first mounting block 71 provides an installation space for the bolt 9 , so as to facilitate the upper cover 7 to be firmly installed on the fixing block 2 .

[0036] See also Figure 1 and Figure 2 The outer wall of the plug rod 4 is provided with multiple groups of sockets 41, and two high sockets 41 are provided on the front and rear sides of the plug rod 4, and two low sockets 41 are provided on the left and right sides of the plug rod 4. The four sockets 41 are opposite to each other, which is convenient for the positioning pin to connect.

[0037] See also Figure 2 - Figure 5 A second mounting block 81 is fixed on one side of the lower cover 8, and a baffle 82 is fixed on the other side of the lower cover 8, and the outer wall of the baffle 82 fits with the inner wall of the upper cover 7, and the baffle 82 fits with the inner wall of the upper cover 7, which reduces the area of ​​the lower cover 8 directly contacting the upper cover 7, reduces the friction between the upper cover 7 and the lower cover 8, and isolates obstacles from being stuck between the upper cover 7 and the lower cover 8, avoiding the two from getting stuck during work.

[0038] See also Figure 5 and Figure 6 The connection between the two sets of upper covers 7 is tooth-shaped, and the connection between the two sets of lower covers 8 is tooth-shaped. If the two sets of upper covers 7 are spliced ​​together in a straight line, they will cause deviation during work, causing obstacles to enter the internal space from the gap. The bite-jointed splicing of the two sets of upper covers 7 can avoid such problems.

[0039] The working principle of the utility model is as follows: when the drill rod is installed, the telescopic rod 6 and the spring 5 are first installed at the end of the drill rod body 1, the end of the telescopic rod 6 is installed on the base 3, and after the bottom of the base 3 is fixedly connected with the plug rod 4, the two groups of lower covers 8 are placed on the top of the base 3, and the connection between the two groups of lower covers 8 coincides. Finally, the two groups of lower covers 8 are fixedly installed on the top of the base 3 with bolts 9, and then the two groups of upper covers 7 are placed on the bottom of the fixed block 2, and the connection between the two groups of upper covers 7 coincides, and the inner wall of the upper cover 7 is fitted with the baffle 82, and then the two groups of upper covers 7 are fixedly installed on the bottom of the fixed block 2 with bolts 9, and the overall installation is completed.

[0040] When the drill rod starts working, the insertion rod 4 pushes the base 3 to move upward, squeezing the spring 5, so that the telescopic rod 6 is inserted into the drill rod body 1, and the two sets of lower covers 8 installed on the base 3 also move upward synchronously, and the baffle 82 slides upward in close contact with the inner wall of the upper cover 7 to block soil debris from entering the protective cover and prevent the soil debris from contacting the spring 5; when the base 3 moves downward, the baffle 82 slides downward in close contact with the inside of the upper cover 7 to push the soil debris outward, thereby reducing the squeezing of soil debris between the lower cover 8 and the upper cover 7, avoiding the need to clean up soil debris and causing construction to be suspended.

[0041] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A drill rod spring plugged in with a positioning pin, comprising a drill rod body (1) and a fixing block (2), characterized in that: A fixing block (2) is installed at the bottom of the drill rod body (1), and a spring (5) is connected to the bottom of the fixing block (2); one end of the spring (5) is connected to a base (3), and a plug rod (4) is installed at the bottom of the base (3); an upper cover (7) is installed at the bottom of the fixing block (2) via bolts (9), and a lower cover (8) is installed above the base (3).

2. A drill rod spring for insertion using a positioning pin according to claim 1, characterized in that: A telescopic rod (6) is fixed to one side of the base (3), and one end of the telescopic rod (6) passes through the fixed block (2) until one end of the telescopic rod (6) is inserted into the interior of the drill rod body (1).

3. The drill rod spring for insertion using a positioning pin according to claim 1, characterized in that: The upper cover (7) is semicircular in top view, and the two groups of upper covers (7) together form a full circle.

4. The drill rod spring for insertion using a positioning pin according to claim 1, characterized in that: A first mounting block (71) is fixed to one side of the upper cover (7).

5. The drill rod spring for insertion using a positioning pin according to claim 1, characterized in that: The outer wall of the plug rod (4) is provided with a plurality of groups of plug holes (41), and two high-position plug holes (41) are provided on the front and rear sides of the plug rod (4), and two low-position plug holes (41) are provided on the left and right sides of the plug rod (4).

6. The drill rod spring for insertion using a positioning pin according to claim 1, characterized in that: A second mounting block (81) is fixed on one side of the lower cover (8), and a baffle (82) is fixed on the other side of the lower cover (8), and the outer wall of the baffle (82) fits with the inner wall of the upper cover (7).

7. The drill rod spring for insertion using a positioning pin according to claim 1, characterized in that: The connection between the two groups of upper covers (7) is in the shape of teeth, and the connection between the two groups of lower covers (8) is in the shape of teeth.

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