Sleeve connecting device for rock and soil construction

Abstract

The utility model relates to the technical field of sleeve connecting devices, and discloses a rock-soil construction sleeve connecting device which comprises a first connecting pipe and a second connecting pipe, the top of the second connecting pipe is fixedly connected with an annular insertion pipe, and the lower end of the inner wall of the first connecting pipe is provided with an annular groove matched with the annular insertion pipe; symmetrical sliding cavities are formed in the outer wall of the annular insertion pipe, wedge-shaped blocks are slidably connected into the sliding cavities, and telescopic rods are fixedly connected to the sides, away from the wedge-shaped blocks, of the inner walls of the sliding cavities. According to the rock-soil construction sleeve connecting device, after an annular inserting pipe is inserted into an annular groove, a wedge-shaped block pops up and is connected with a through groove in a clamped mode, in this way, connection of a first connecting pipe and a second connecting pipe can be more convenient, connection of sleeves can be firmer, the wedge-shaped block can be separated from the through groove by pressing a pressing block on the first connecting pipe, and therefore the sleeve connecting device is more convenient to use. And then the first connecting pipe and the second connecting pipe can be separated by reversely pulling the first connecting pipe and the second connecting pipe, so that a worker can more conveniently disassemble the sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of casing connection devices, in particular to a casing connection device for rock and soil construction. Background Art

[0002] In geotechnical engineering construction, when the casing extraction technology is used to remove the anchor cable, the casing needs to change direction along the trajectory of the anchor cable hole under the action of torque. At present, the rigid casing that provides large torque usually adopts a straight thread connection device, and the connection steps are cumbersome and inefficient. When the anchor cable is extracted, it is difficult to change the direction of the drilling hole according to the original cable body hole, which leads to the cutting and damage of the anchor cable body, resulting in the failure of the operation;

[0003] In the prior art, for example, announcement number CN219118154U proposes a geotechnical construction casing connection device. This technical solution discloses a geotechnical construction casing connection device, which relates to the field of geotechnical construction process technology, and includes two connection ends, which are adapted to each other. The interiors of the two connection ends are provided with a slot mechanism and a connection mechanism for mutually clamping the two connection ends. The slot mechanism includes two positioning slides and two limit clamps. The two positioning slides are both opened on the inner wall of the connection end. The utility model has a reasonable design structure, which can bring the two connection ends closer to each other, and clamp the positioning vertical plate and the positioning block between the two connection ends with the positioning slide and the limit clamp, thereby completing the rapid connection of the two connection ends, solving the problems of cumbersome steps and low efficiency of traditional casing connection, and also solving the problem of anchor cable removal in geotechnical engineering construction, and making the drilling direction drill along the original cable body direction, thereby solving the practical engineering problem of anchor cable removal in geotechnical engineering well.

[0004] The existing technical solution of the geotechnical construction casing connection device only rotates the two connection ends in opposite directions to make the positioning block and the limit clamp plate engage. Although the connection is convenient, the sealing performance of this connection method is poor, and the stability of the two connection ends when connected is also poor, so that the casing is easy to be separated during use, thereby affecting the operation of removing the anchor cable sleeve;

[0005] In order to solve the above problems, the present application proposes a casing connection device for geotechnical construction. Utility Model Content

[0006] The utility model aims to provide a geotechnical construction casing connection device, which is mainly used to solve the problem that the sealing and stability of the existing geotechnical construction casing connection device connection method are poor, so that the casing is easily detached during use, thereby affecting the anchor cable sleeve removal operation.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A geotechnical construction casing connection device comprises a first connecting tube and a second connecting tube, the top of the second connecting tube is fixedly connected with an annular insert tube, the lower end of the inner wall of the first connecting tube is provided with an annular groove matching the annular insert tube, the outer wall of the annular insert tube is provided with a symmetrical sliding cavity, the interior of the sliding cavity is slidably connected with a wedge block, the side of the inner wall of the sliding cavity away from the wedge block is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is sleeved with a spring, one end of the spring is fixedly connected to the inner wall of the sliding cavity, and the other end is fixedly connected to the wedge block, the first connecting tube is provided with a through groove matching the wedge block, the interior of the through groove is slidably connected with a pressing block, one side of the pressing block is set to abut against the wedge block, and the other end extends out of the first connecting tube.

[0009] The working principle and beneficial effects of the utility model:

[0010] 1. Working principle: When the geotechnical construction casing connection device is in use, the annular insert tube on the second connecting tube is inserted into the annular groove at the bottom of the first connecting tube. When the wedge block on the annular insert tube contacts the inner wall of the annular groove, it is squeezed and slides into the sliding cavity. When the annular insert tube completely enters the annular groove, the wedge block pops out under the action of the telescopic rod and the spring inside the sliding cavity, so that the wedge block is engaged with the through groove on the first connecting tube, and the first connecting tube and the second connecting tube are connected together. When the first connecting tube and the second connecting tube need to be disassembled, the pressing block on the first connecting tube is pressed at the same time to push the wedge block to slide into the sliding cavity. When the wedge block completely enters the sliding cavity, the first connecting tube and the second connecting tube can be pulled in the opposite direction to separate them.

[0011] 2. Beneficial effect: through the annular insert provided on the second connecting tube and the annular groove provided on the first connecting tube, after the annular insert is inserted into the annular groove, the wedge block pops out under the action of the telescopic rod and the spring and engages with the through groove, which not only makes the connection between the first connecting tube and the second connecting tube more convenient, but also makes the connection of the sleeve more secure. By pressing the pressing block on the first connecting tube, the wedge block can be disengaged from the through groove, and then the first connecting tube and the second connecting tube can be pulled in reverse to separate them, which makes it more convenient for the staff to disassemble the sleeve.

[0012] Preferably, the outer wall of the annular plug is provided with symmetrical guide blocks, the inner wall of the annular groove is provided with guide grooves matching the guide blocks, and the corners at the openings of the guide grooves are chamfered. When the staff inserts the annular plug on the second connecting tube into the annular groove at the bottom of the first connecting tube, the guide blocks provided on the outer wall of the annular plug and the guide grooves provided on the inner wall of the annular groove can better limit and guide the annular plug, so that when the annular plug is fully inserted into the annular groove, the wedge block is always aligned with the through groove, thereby making the connection of the first connecting tube and the second connecting tube more convenient.

[0013] Preferably, there are four telescopic rods inside the sliding cavity, and the telescopic rods are symmetrically arranged inside the sliding cavity. By setting the number of telescopic rods inside the sliding cavity to four, the outer walls of the telescopic rods are sleeved with springs. The advantage of such an arrangement is that the elastic force of the telescopic rods and the springs on the wedge blocks can be greater, thereby making the connection between the first connecting tube and the second connecting tube more secure.

[0014] Preferably, sliders are fixedly connected to both sides of the pressing block, and the inner wall of the through groove is provided with a sliding groove matching the slider. When the pressing block slides inside the through groove, the sliders arranged on both sides of the pressing block and the sliding grooves provided on the inner wall of the through groove can play a better limiting and guiding role for the pressing block, thereby making the pressing block more stable when sliding inside the through groove and effectively preventing the pressing block from leaving the through groove.

[0015] Preferably, the first connecting pipe and the second connecting pipe are both made of stainless steel. Since stainless steel has excellent corrosion resistance and high temperature resistance, the first connecting pipe and the second connecting pipe are both made of stainless steel, which can effectively extend the service life of the first connecting pipe and the second connecting pipe.

[0016] Preferably, a rubber pad is fixedly connected to the side of the pressing block away from the first connecting tube, and anti-slip grooves are provided on the rubber pad. The rubber pad provided on one side of the pressing block can make people's hands more comfortable when pressing the pressing block. The anti-slip grooves provided on the rubber pad can effectively increase the friction between people's hands and the pressing block, preventing people's hands from slipping when pressing the pressing block.

[0017] Preferably, a sealing ring is fixedly connected to the top of the inner wall of the annular groove, and the sealing ring can be made of rubber material. Since rubber material has good sealing and buffering properties, the sealing ring arranged inside the annular groove can not only make the first connecting pipe and the second connecting pipe more sealed after being connected, but also effectively avoid hard contact between the first connecting pipe and the second connecting pipe, thereby playing a certain protective role for the first connecting pipe and the second connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure after the first connecting pipe and the second connecting pipe of the utility model are connected;

[0020] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the connection between the first connecting pipe and the second connecting pipe of the utility model;

[0021] Figure 4It is a schematic diagram of the top cross-sectional structure of the connection between the first connecting pipe and the second connecting pipe of the utility model.

[0022] In the figure: 1. first connecting tube; 2. second connecting tube; 3. annular insert; 4. annular groove; 5. sliding cavity; 6. wedge block; 7. telescopic rod; 8. spring; 9. through groove; 10. pressing block; 11. slider; 12. slide groove; 13. guide block; 14. guide groove; 15. rubber pad; 16. sealing ring. DETAILED DESCRIPTION

[0023] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4A geotechnical construction casing connection device comprises a first connecting pipe 1 and a second connecting pipe 2. The first connecting pipe 1 and the second connecting pipe 2 are both made of stainless steel. Since stainless steel has good corrosion resistance and high temperature resistance, the first connecting pipe 1 and the second connecting pipe 2 are both made of stainless steel, which can effectively extend the service life of the first connecting pipe 1 and the second connecting pipe 2. The top of the second connecting pipe 2 is fixedly connected with an annular insert 3. The lower end of the inner wall of the first connecting pipe 1 is provided with an annular groove 4 matching the annular insert 3. The top of the inner wall of the annular groove 4 is fixedly connected with a sealing ring 16, so that not only the first connecting pipe 1 and the second connecting pipe 2 can be sealed after being connected, but also the sealing ring 16 can be fixedly connected to the inner wall of the annular groove 4. The sealing performance is better, and the hard contact between the first connecting tube 1 and the second connecting tube 2 is effectively avoided, so that the first connecting tube 1 and the second connecting tube 2 are protected to a certain extent. The outer wall of the annular plug 3 is provided with a symmetrical guide block 13, and the inner wall of the annular groove 4 is provided with a guide groove 14 matching the guide block 13, and the corners at the opening of the guide groove 14 are all chamfered, so that the annular plug 3 can be inserted into the annular groove 4. The annular plug 3 has a better limiting and guiding effect, so that the connection between the first connecting tube 1 and the second connecting tube 2 is more convenient, and the outer wall of the annular plug 3 is provided with a symmetrical sliding cavity 5, and the sliding cavity 5 is slidably connected to the inside of the wedge block 6. A telescopic rod 7 is fixedly connected to one side of the inner wall of the sliding cavity 5 away from the wedge block 6. There are four telescopic rods 7 inside the sliding cavity 5, and the telescopic rods 7 are symmetrically arranged inside the sliding cavity 5. A spring 8 is sleeved on the outer wall of the telescopic rod 7. One end of the spring 8 is fixedly connected to the inner wall of the sliding cavity 5, and the other end is fixedly connected to the wedge block 6. A through groove 9 matching the wedge block 6 is opened on the first connecting tube 1. When the annular insert 3 completely enters the annular groove 4, the wedge block 6 will pop out under the action of the telescopic rod 7 and the spring 8 inside the sliding cavity 5, so that the wedge block 6 is clamped with the through groove 9 on the first connecting tube 1, and the first connecting tube 1 and the second connecting tube 2 are connected together. The inside of the through groove 9 A pressing block 10 is slidably connected, one side of the pressing block 10 is set against the wedge block 6, and the other end extends out of the first connecting tube 1. Both sides of the pressing block 10 are fixedly connected with sliders 11, and the inner wall of the through groove 9 is provided with a sliding groove 12 matching the slider 11. The side of the pressing block 10 away from the first connecting tube 1 is fixedly connected with a rubber pad 15, and the rubber pad 15 is provided with anti-slip grooves. When the first connecting tube 1 and the second connecting tube 2 need to be disassembled, the pressing block 10 on the first connecting tube 1 is pressed at the same time to push the wedge block 6 to slide into the sliding cavity 5. When the wedge block 6 completely enters the sliding cavity 5, the first connecting tube 1 and the second connecting tube 2 can be pulled in the opposite direction to separate them.

[0025] From the above, it can be seen that the specific implementation of the utility model is as follows:

[0026] When the geotechnical construction casing connection device is in use, the annular insert tube 3 on the second connecting tube 2 is inserted into the annular groove 4 at the bottom of the first connecting tube 1. When the wedge block 6 on the annular insert tube 3 contacts the inner wall of the annular groove 4, it is squeezed and slides into the sliding cavity 5. When the annular insert tube 3 completely enters the annular groove 4, the wedge block 6 will pop out under the action of the telescopic rod 7 and the spring 8 inside the sliding cavity 5, so that the wedge block 6 is engaged with the through groove 9 on the first connecting tube 1, and the first connecting tube 1 and the second connecting tube 2 are connected together with higher stability. By pressing the pressing block 10 on the first connecting tube 1 at the same time to push the wedge block 6 to slide into the sliding cavity 5, when the wedge block 6 completely enters the sliding cavity 5, the first connecting tube 1 and the second connecting tube 2 can be pulled in the opposite direction to separate them, which makes it more convenient for the staff to disassemble the casing.

[0027] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A geotechnical construction casing connection device, comprising a first connecting pipe and a second connecting pipe, characterized in that: The top of the second connecting tube is fixedly connected with an annular insert tube, the lower end of the inner wall of the first connecting tube is provided with an annular groove matching the annular insert tube, the outer wall of the annular insert tube is provided with a symmetrical sliding cavity, the interior of the sliding cavity is slidably connected with a wedge block, the side of the inner wall of the sliding cavity away from the wedge block is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is sleeved with a spring, one end of the spring is fixedly connected to the inner wall of the sliding cavity, and the other end is fixedly connected to the wedge block, the first connecting tube is provided with a through groove matching the wedge block, the interior of the through groove is slidably connected with a pressing block, one side of the pressing block is set to abut against the wedge block, and the other end extends out of the first connecting tube.

2. A geotechnical construction casing connection device according to claim 1, characterized in that: The outer wall of the annular insert is provided with symmetrical guide blocks, the inner wall of the annular groove is provided with guide grooves matching the guide blocks, and the corners at the openings of the guide grooves are all chamfered.

3. A geotechnical construction casing connection device according to claim 1, characterized in that: There are four telescopic rods in the sliding cavity, and the telescopic rods are symmetrically arranged in the sliding cavity.

4. A geotechnical construction casing connection device according to claim 1, characterized in that: Slide blocks are fixedly connected to both sides of the pressing block, and the inner wall of the through slot is provided with a sliding groove matching the slide blocks.

5. A geotechnical construction casing connection device according to claim 1, characterized in that: The first connecting pipe and the second connecting pipe are both made of stainless steel.

6. A geotechnical construction casing connection device according to claim 1, characterized in that: A rubber pad is fixedly connected to one side of the pressing block away from the first connecting pipe, and anti-slip grooves are provided on the rubber pad.

7. A geotechnical construction casing connection device according to claim 1, characterized in that: A sealing ring is fixedly connected to the top of the inner wall of the annular groove.

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