A combined anchor bolt specially used for nuclear power

Abstract

The utility model discloses a special combined anchor bolt for nuclear power, comprising an external threaded tube, an expansion tube, a cone head, a moving mechanism and a drilling mechanism. The expansion tube is sleeved on the external threaded tube, the cone head is fixedly arranged on the outer wall of the external threaded tube, the moving mechanism is arranged on the external threaded tube and is used to control the expansion tube to move, the drilling mechanism is arranged in the external threaded tube and is used to drill holes in the wall, a plurality of expansion through grooves are provided on the side wall of the expansion tube, the special combined anchor bolt for nuclear power is convenient for installing the anchor bolt through the cooperation of the drill rod, the external threaded tube and the expansion tube, the drill rod directly participates in the installation process, thereby solving the problem in the prior art that the drill rod of corresponding specifications needs to be frequently replaced for drilling during the installation of the anchor bolt to affect the installation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor bolts, in particular to a combined anchor bolt special for nuclear power. Background Art

[0002] Generally, heavy-duty mechanical anchor bolts are used to fix large-scale electrical equipment, and are mainly used to install the equipment on the ground or on the wall. Nuclear power plants generally have more electrical equipment, and more anchor bolts are used. When installing the power equipment in nuclear power plants, holes are usually drilled in the ground first, and then the anchor bolts are inserted into the drilled holes and then fixed to the drilled holes. The large equipment is then screwed together with the anchor bolts. Generally, heavy-duty anchor bolts include structures such as screws, cone heads, expansion tubes, adjustable sleeves, and nuts. By rotating the nut, the cone head is pulled against the expansion tube to deform it and get stuck in the drilled hole.

[0003] For example, the utility model patent with announcement number CN217519024U discloses a combined anchor bolt specially used for nuclear power, including a screw rod, one end of which is fixedly connected with a cone head, and the outer side wall of the screw rod is movably sleeved with an expansion tube and a distance-adjusting sleeve in turn.

[0004] The above-mentioned prior art can be used by drilling a hole on the ground or wall, knocking the screw head against a hard object, so that the block penetrates the sealing film and allows the water flow to wet the scraper paper, and then inserting the screw head into the drilled hole, so that the scraper paper adheres to the dust and scrapes the dust, and hammering the screw into the drilled hole, so that the nut squeezes the adjustable sleeve and contacts the sleeve, and the retaining ring is embedded in the annular groove to contact multiple spikes and contact the wall of the drilled hole. The screw continues to move, so that the deformation sleeve contacts multiple cutting plates and is cut by the cutting plates, slides along the sleeve and contacts the hole wall, and generates friction with the hole wall to curl until it is inserted into the drilled hole, and then the nut is rotated to move the screw, so that the expansion tube is squeezed and deformed by the cone head, thereby improving the stability of the screw in the drilled hole.

[0005] However, during the installation of electrical power equipment, multiple bolts of different specifications are required for fixing. During the installation and fixing of multiple bolts of different specifications, different drill rods need to be frequently replaced for drilling, and then the drill holes are cleaned and anchor bolts of corresponding specifications are inserted into the drill holes. The operation is cumbersome and it is easy to have problems with the mismatch of the drill hole and the anchor bolt size. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies of the prior art, the utility model provides a nuclear power-specific combined anchor bolt to solve the problem in the prior art proposed in the background technology that the installation process of the anchor bolt requires frequent replacement of drill rods of corresponding specifications for drilling, which affects the installation efficiency.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nuclear power special combined anchor bolt, comprising an external threaded tube, an expansion tube, a cone head, a moving mechanism and a drilling mechanism;

[0010] The expansion tube is sleeved on the externally threaded tube;

[0011] The cone head is fixedly arranged on the outer wall of the externally threaded tube;

[0012] The moving mechanism is arranged on the externally threaded tube and is used to control the expansion tube to move;

[0013] The drilling mechanism is arranged in the external threaded tube and is used for drilling holes in the wall.

[0014] Preferably, the moving mechanism comprises:

[0015] A nut, wherein the nut is sleeved on the externally threaded pipe through thread matching;

[0016] A support ring is fixedly arranged on the nut and sleeved on the externally threaded tube.

[0017] Furthermore, a gasket is included, which is sleeved on the external threaded pipe and located between the expansion pipe and the support ring.

[0018] Furthermore, the drilling mechanism comprises:

[0019] A drill rod, the drill rod is disposed in the externally threaded tube and is slidably connected to the inner wall of the externally threaded tube;

[0020] A drill bit is fixedly arranged on the drill rod.

[0021] Furthermore, the drill bit further comprises a driving mechanism, which is arranged on one side of the drill rod and is used to control the rotation of the nut, and the driving mechanism comprises:

[0022] A driving ring, the driving ring being arranged on one side of the drill rod;

[0023] Wherein, the nut is adapted to the shape of the inner wall of the driving ring;

[0024] A driving seat is fixedly arranged on the driving ring.

[0025] Based on the above solution, a plurality of expansion grooves are provided on the side wall of the expansion tube.

[0026] (III) Beneficial effects

[0027] Compared with the prior art, the utility model provides a combined anchor bolt for nuclear power, which has the following beneficial effects:

[0028] 1. In the present invention, the drilling mechanism can be used to combine the drill rod, the drill bit and the external threaded pipe, so that each anchor bolt can be drilled with its own corresponding drill rod during installation, thereby avoiding frequent replacement of the drill rod and affecting the installation efficiency;

[0029] 2. In the utility model, through the setting of the moving mechanism, after the drill rod and the drill bit are used to drill a hole and the drill rod is inserted into the hole, the operator can slide the external threaded tube into the hole through the drill rod, and then control the nut to rotate through the driving mechanism, so that the support ring and the expansion tube are driven to move through the cooperation of the nut and the external threaded tube, so that the expansion tube can be deformed and the expansion tube can be made to collide with the inner wall of the hole through the cooperation of the expansion tube and the cone head, so as to realize the installation and fixation of the anchor bolt and prevent the anchor bolt from extending out of the hole;

[0030] 3. In the utility model, the outer wall specification of the nut can be set to be fixed through the setting of the driving mechanism, so the same driving ring can be sleeved on the nut and the nut can be controlled to rotate. After the expansion tube contacts the inner wall of the borehole, the driving ring is taken out of the borehole, so as to facilitate the control of the nut to rotate;

[0031] 4. In the utility model, through the arrangement of the external threaded tube, the expansion tube, the cone head, the moving mechanism and the drilling mechanism, it is convenient to install the anchor bolt through the cooperation of the drill rod, the external threaded tube and the expansion tube, and the drill rod directly participates in the installation process, thereby solving the problem in the prior art that the drill rod of the corresponding specification needs to be frequently replaced for drilling during the installation of the anchor bolt, which affects the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure of this application;

[0033] Figure 2 This is a schematic diagram of the driving mechanism structure of this application;

[0034] Figure 3 This is a schematic diagram of the drilling mechanism structure of this application;

[0035] Figure 4 This is a schematic diagram of the mobile mechanism structure of this application;

[0036] Figure 5 This is a schematic diagram of the exploded structure of the external threaded pipe in this application.

[0037] In the figure: 1. external threaded pipe; 2. expansion pipe; 3. cone head; 4. nut; 5. support ring; 6. gasket; 7. drill rod; 8. drill bit; 9. drive ring; 10. drive seat; 11. expansion groove. DETAILED DESCRIPTION

[0038] 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.

[0039] See also Figures 1 to 5 A combined anchor bolt specially used for nuclear power comprises an external threaded tube 1, an expansion tube 2, a cone head 3, a moving mechanism and a drilling mechanism. The expansion tube 2 is sleeved on the external threaded tube 1, the cone head 3 is fixedly arranged on the outer wall of the external threaded tube 1, the moving mechanism is arranged on the external threaded tube 1 and is used to control the movement of the expansion tube 2. The drilling mechanism is arranged in the external threaded tube 1 and is used to drill holes in the wall. A plurality of expansion grooves 11 are provided on the side wall of the expansion tube 2.

[0040] Preferably, the moving mechanism includes a nut 4 and a support ring 5, the nut 4 is sleeved on the external threaded tube 1 through threaded matching, the support ring 5 is fixedly set on the nut 4, the support ring 5 is sleeved on the external threaded tube 1, and also includes a gasket 6, the gasket 6 is sleeved on the external threaded tube 1, and the gasket 6 is located between the expansion tube 2 and the support ring 5.

[0041] Specifically, during the rotation of the nut 4, the support ring 5 and the expansion tube 2 can be driven to move through the threaded cooperation between the nut 4 and the external threaded tube 1, so that the expansion tube 2 can be deformed and come into contact with the inner wall of the borehole through the cooperation between the expansion tube 2 and the cone head 3, thereby achieving the installation and fixation of the anchor bolt.

[0042] Furthermore, the drilling mechanism includes a drill rod 7 and a drill bit 8 . The drill rod 7 is arranged to penetrate the external threaded tube 1 . The drill rod 7 is slidably connected to the inner wall of the external threaded tube 1 . The drill bit 8 is fixedly arranged on the drill rod 7 .

[0043] Specifically, the operator may first install the drill rod 7 on the drilling rig, and then drill a hole in the wall by rotating the drill rod 7 and the drill bit 8 .

[0044] It also includes a driving mechanism, which is arranged on one side of the drill rod 7 and is used to control the rotation of the nut 4. The driving mechanism includes a driving ring 9 and a driving seat 10. The driving ring 9 is arranged on one side of the drill rod 7, wherein the nut 4 is adapted to the shape of the inner wall of the driving ring 9, and the driving seat 10 is fixedly arranged on the driving ring 9.

[0045] Specifically, the outer wall specifications of the nut 4 can be set to be fixed, so the same drive ring 9 can be mounted on the nut 4 and the nut 4 can be controlled to rotate. After the expansion tube 2 collides with the inner wall of the borehole, the drive ring 9 is removed from the borehole, thereby controlling the nut 4 to rotate.

[0046] In summary, when the nuclear power-specific combined anchor bolt is in use, the operator first installs the drill rod 7 on the drilling rig, and then drills the wall by rotating the drill rod 7 and the drill bit 8. After the drill rod 7 and the drill bit 8 drill a hole and the drill rod 7 is inserted into the hole, the operator can slide the external threaded tube 1 into the hole through the drill rod 7. Then the operator puts the drive ring 9 on the nut 4 and rotates the drive seat 10, so that the nut 4 can be controlled to rotate by the drive ring 9. At the same time, the support ring 5 and the expansion tube 2 can be driven to move by the cooperation of the nut 4 and the external threaded tube 1, so that the expansion tube 2 can be deformed by the cooperation of the expansion tube 2 and the cone head 3 and the expansion tube 2 can be made to collide with the inner wall of the hole, thereby realizing the installation and fixation of the anchor bolt and preventing the anchor bolt from extending out of the hole.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nuclear power special combined anchor bolt, characterized in that: include: Externally threaded pipe (1); An expansion pipe (2), wherein the expansion pipe (2) is sleeved on the externally threaded pipe (1); A cone head (3), wherein the cone head (3) is fixedly arranged on the outer wall of the externally threaded tube (1); A moving mechanism, the moving mechanism being arranged on the externally threaded tube (1) and being used for controlling the movement of the expansion tube (2); A drilling mechanism, wherein the drilling mechanism is arranged in the externally threaded tube (1) and is used for drilling holes in a wall surface.

2. A nuclear power-specific combined anchor bolt according to claim 1, characterized in that: The moving mechanism comprises: A nut (4), wherein the nut (4) is sleeved on the externally threaded pipe (1) through threaded matching; A support ring (5), wherein the support ring (5) is fixedly arranged on the nut (4), and the support ring (5) is sleeved on the externally threaded pipe (1).

3. A nuclear power-specific combined anchor bolt according to claim 2, characterized in that: It also includes a gasket (6), which is sleeved on the externally threaded pipe (1) and is located between the expansion pipe (2) and the support ring (5).

4. A nuclear power-specific combined anchor bolt according to claim 3, characterized in that: The drilling mechanism comprises: A drill rod (7), the drill rod (7) being arranged through the externally threaded tube (1), the drill rod (7) being slidably connected to the inner wall of the externally threaded tube (1); A drill bit (8), wherein the drill bit (8) is fixedly arranged on the drill rod (7).

5. A nuclear power-specific combined anchor bolt according to claim 4, characterized in that: It also includes a driving mechanism, which is arranged on one side of the drill rod (7) and is used to control the rotation of the nut (4), and includes: A drive ring (9), the drive ring (9) being arranged on one side of the drill rod (7); Wherein, the nut (4) is adapted to the shape of the inner wall of the drive ring (9); A drive seat (10), wherein the drive seat (10) is fixedly arranged on the drive ring (9).

6. A nuclear power-specific combined anchor bolt according to claim 5, characterized in that: A plurality of expansion slots (11) are provided on the side wall of the expansion tube (2).

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