Durable cross screw with deep hole nut

Abstract

The utility model discloses a durable type deep hole nut cross screw which comprises a screw body, the front end face of the screw body is fixedly connected with a screw head, an installation groove is formed in the middle of the front end face of the screw head, a plurality of springs B are installed on the front end face of the installation groove, and a base is movably arranged on the inner side of the installation groove through a detachable mechanism. The number of the detachable mechanisms is four, each detachable mechanism comprises a movable plate, the movable plates are arranged on the inner side of the screw head through strip-shaped grooves, the inner walls of the strip-shaped grooves are connected with the outer surfaces of the movable plates through springs A, and the opposite sides of the outer surfaces of the four movable plates are fixedly connected with clamping plates. And four clamping grooves are uniformly formed in the outer surface of the base. The base provided with the cross groove can be replaced, the situation that the screw body cannot be screwed off after the cross groove is ground to be flat and worn out is avoided, and the screw body can be rotated when no tool is available.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a cross screw with a durable deep hole nut. Background Art

[0002] The cross screw is a relatively common screw. The screw caps of existing cross screws are all vertically arranged cross structures. In actual applications in nuclear power plants, the cross screwdriver and the cross screw often become disengaged, causing the cross pattern of the screw cap to be worn flat and scratched, ultimately making it impossible to unscrew the cross screw, affecting equipment maintenance work.

[0003] Prior art CN204828208U discloses a cement screw for construction, which is provided with a screw neck under the screw cap, a screw rod under the screw neck, a screw head under the screw rod, and coarse teeth and fine teeth are provided on the screw rod, the coarse teeth and fine teeth are alternately distributed on the screw rod, and a serrated tooth pattern and an oblique notch are provided on the screw head, so that when the screw is driven into a cement wall column, the screw will not bend or deform, and the cement will not crack due to the driving pressure, thereby saving materials, and the screw can also be quickly driven in with the help of a motor, thereby improving work efficiency.

[0004] However, when the above device is in use, the cross screwdriver and the cross screw often disengage, causing the cross pattern of the screw cap to be worn and scratched, and eventually making it impossible to unscrew the cross screw, affecting the maintenance work of the equipment; on the other hand, when people lack tools such as screwdrivers, it is difficult to screw the screw into an object; therefore, the existing needs are not met, and we have proposed a cross screw with a durable deep-hole nut. Utility Model Content

[0005] The purpose of the utility model is to provide a cross screw with a durable deep hole nut, so as to solve the problem that the cross screwdriver and the cross screw often disengage when the above-mentioned device proposed in the above-mentioned background technology are used, so that the cross pattern of the nut is worn flat and scratched, and finally the cross screw cannot be unscrewed, affecting the maintenance work of the equipment; on the other hand, when people lack tools such as screwdrivers, it is difficult to screw the screw into objects.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cross screw for a durable deep-hole nut, comprising a screw body, a screw head fixedly connected to the front end face of the screw body, a mounting groove arranged in the middle of the front end face of the screw head, a plurality of springs B installed on the front end face of the mounting groove, a base movably arranged on the inner side of the mounting groove through a detachable mechanism, and the detachable mechanism has four, the detachable mechanism comprising a movable plate, the movable plate being arranged on the inner side of the screw head through a strip groove, the inner wall of the strip groove being connected to the outer surface of the movable plate through a spring A, a clamping plate being fixedly connected to the opposite side of the outer surfaces of the four movable plates, four clamping grooves being evenly arranged on the outer surface of the base, a cross groove being arranged on the front end face of the base, and four arc-shaped plates being evenly arranged on the outer side of the mounting groove.

[0007] Preferably, an external thread is provided at the rear of the outer surface of the screw body, a gasket is sleeved at the front of the outer surface of the screw body, and a nut is connected to the rear of the outer surface of the screw body through a thread, and the nut is relatively long.

[0008] Preferably, the mounting groove and the strip groove are connected via a through groove.

[0009] Preferably, the size of the card plate is smaller than the size of the through slot, and the card plate is adapted to the card slot.

[0010] Preferably, slide plates are installed on both sides of the outer surface of the movable plate, slide grooves are provided on both sides of the inner wall of the strip-shaped groove, and the slide plates are inserted into the inner sides of the slide grooves.

[0011] Preferably, the elastic force of the plurality of springs B is greater than the gravity of the base, and the outer surface of the card plate is covered with a rubber pad.

[0012] Preferably, the arc-shaped plate is fixedly connected to the front end surface of the screw head by welding, and the outer surface of the arc-shaped plate is covered with a silicone pad.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a detachable mechanism. When the cross groove is smoothed and scratched, the user can move the four moving plates outward at the same time, the spring A is compressed, the moving plate moves in the direction away from the base, drives the card plate to leave the inner side of the card slot, and releases the limit of the base. Under the action of multiple springs B, the base pushes the base to the front of the installation slot, and the user can remove the base from the inner side of the installation slot and replace it. The new base is inserted into the inner side of the installation slot, and the four moving plates are first moved outward. When the base is completely inserted into the inner side of the installation slot, the moving plate is released. The moving plate moves in the direction close to the base under the action of the spring A, drives the card plate to be inserted into the inner side of the card slot, and limits the base. The installation of the base is completed. At this time, the cross groove on the new base can be used. The utility model can replace the base provided with a cross groove to avoid the inability to unscrew the screw body after the cross groove is smoothed and scratched.

[0015] 2. The utility model is provided with an arc plate. When a tool such as a screwdriver is lacking, the screw body can be rotated through the arc plate, and a silicone pad is provided on the outer surface of the arc plate to prevent the user from being injured when tightening the screw body through the arc plate. The utility model can also rotate the screw body when a tool is lacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the base of the utility model;

[0018] Figure 3 It is a top sectional view of the utility model as a whole;

[0019] Figure 4 It is a partial structural schematic diagram of the detachable mechanism of the utility model.

[0020] In the figure: 1. screw body; 2. nut; 3. screw head; 4. cross slot; 5. arc plate; 6. base; 7. detachable mechanism; 701. strip slot; 702. movable plate; 703. spring A; 704. slot; 705. clip plate; 8. mounting slot; 9. spring B. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figures 1 to 4, an embodiment of the utility model is provided: a cross screw of a durable deep hole nut, comprising a screw body 1, a screw head 3 is fixedly connected to the front end face of the screw body 1, a mounting groove 8 is arranged in the middle of the front end face of the screw head 3, a plurality of springs B9 are installed on the front end face of the mounting groove 8, a base 6 is movably arranged on the inner side of the mounting groove 8 through a detachable mechanism 7, there are four detachable mechanisms 7, the detachable mechanism 7 comprises a movable plate 702, the movable plate 702 is arranged on the inner side of the screw head 3 through a strip groove 701, the inner wall of the strip groove 701 is connected to the outer surface of the movable plate 702 through a spring A703, a clamping plate 705 is fixedly connected to the opposite side of the outer surface of the four movable plates 702, four clamping grooves 704 are evenly arranged on the outer surface of the base 6, a cross groove 4 is arranged on the front end face of the base 6, and four arc plates 5 are evenly arranged on the outer side of the mounting groove 8.

[0023] An external thread is arranged at the rear of the outer surface of the screw body 1, a gasket is sleeved at the front of the outer surface of the screw body 1, and a nut 2 is connected to the rear of the outer surface of the screw body 1 through a thread, and the nut 2 is relatively long.

[0024] By adopting the above technical solution, the nut 2 is lengthened, so that the nut 2 will not be easily damaged when the screw body 1 is screwed, thereby extending the service life of the screw body 1.

[0025] Furthermore, the installation groove 8 is connected to the strip groove 701 via a through groove, the size of the clamping plate 705 is smaller than the size of the through groove, and the clamping plate 705 is adapted to the clamping groove 704 .

[0026] By adopting the above technical solution, the clamping plate 705 can pass through the through slot and be clamped into the inner side of the clamping slot 704 .

[0027] Furthermore, slide plates are installed on both sides of the outer surface of the movable plate 702, and slide grooves are provided on both sides of the inner wall of the strip-shaped groove 701, and the slide plates are inserted into the inner sides of the slide grooves.

[0028] By adopting the above technical solution, the stability of the movement of the moving plate 702 is improved.

[0029] Furthermore, the elastic force of the plurality of springs B9 is greater than the gravity of the base 6 , and the outer surface of the clamping plate 705 is covered with a rubber pad.

[0030] By adopting the above technical solution, multiple springs B9 can push the base 6 toward the front of the installation slot 8, thereby improving the stability of the clamping plate 705 inside the clamping slot 704.

[0031] Furthermore, the arc plate 5 is fixedly connected to the front end surface of the screw head 3 by welding, and the outer surface of the arc plate 5 is covered with a silicone pad.

[0032] By adopting the above technical solution, the stability of the connection between the arc plate 5 and the screw head 3 is improved, thereby preventing the user from being injured when tightening the screw body 1 through the arc plate 5.

[0033] When the cross screw of the durable deep hole nut is in use, a detachable mechanism 7 is provided. When the cross slot 4 is ground and scratched, the user can move the four movable plates 702 outward at the same time, the spring A703 is compressed, and the movable plate 702 moves away from the base 6, driving the clamping plate 705 to leave the inner side of the clamping slot 704, releasing the limit on the base 6, and the base 6 is pushed forward to the installation slot 8 by the multiple springs B9. The user can remove the base 6 from the inner side of the installation slot 8 and replace it, and insert the new base 6 into the inner side of the installation slot 8, first move the four movable plates 702 outward, and when the base 6 is completely inserted into the inner side of the installation slot 8, release the movable plate 702. Under the action of spring A703, the movable plate 702 moves toward the base 6, driving the card plate 705 to be clamped into the inner side of the card slot 704, limiting the base 6. The base 6 is installed. At this time, the cross slot 4 on the new base 6 can be used, and the arc plate 5 is provided. When there is a lack of tools such as a screwdriver, the screw body 1 can be rotated through the arc plate 5, and the outer surface of the arc plate 5 is provided with a silicone pad to prevent the user from being injured when tightening the screw body 1 through the arc plate 5. The utility model can replace the base 6 with the cross slot 4 to prevent the cross slot 4 from being worn out and unable to unscrew the screw body 1, and the screw body 1 can also be rotated when there is a lack of tools.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A cross screw with a durable deep hole nut, comprising a screw body (1), a front end surface of the screw body (1) being fixedly connected to a screw head (3), characterized in that: A mounting groove (8) is arranged in the middle of the front end surface of the screw head (3), and a plurality of springs B (9) are installed on the front end surface of the mounting groove (8). A base (6) is movably arranged on the inner side of the mounting groove (8) via a detachable mechanism (7), and there are four detachable mechanisms (7). The detachable mechanism (7) comprises a movable plate (702), and the movable plate (702) is arranged on the inner side of the screw head (3) via a strip groove (701). The inner wall of the strip groove (701) is connected to the outer surface of the movable plate (702) via a spring A (703). A clamping plate (705) is fixedly connected to the opposite side of the outer surfaces of the four movable plates (702). Four clamping grooves (704) are evenly arranged on the outer surface of the base (6), and a cross groove (4) is arranged on the front end surface of the base (6). Four arc-shaped plates (5) are evenly arranged on the outer side of the mounting groove (8).

2. A cross screw with a durable deep hole nut according to claim 1, characterized in that: An external thread is arranged at the rear of the outer surface of the screw body (1), a gasket is sleeved at the front of the outer surface of the screw body (1), and a nut (2) is connected to the rear of the outer surface of the screw body (1) via a thread, and the nut (2) is relatively long.

3. The cross screw with a durable deep hole nut according to claim 1, characterized in that: The installation groove (8) is connected to the strip groove (701) via a through groove.

4. The cross screw with a durable deep hole nut according to claim 3, characterized in that: The size of the clamping plate (705) is smaller than the size of the through slot, and the clamping plate (705) is adapted to the clamping slot (704).

5. The cross screw with a durable deep hole nut according to claim 1, characterized in that: Slide plates are installed on both sides of the outer surface of the movable plate (702), and slide grooves are arranged on both sides of the inner wall of the strip-shaped groove (701), and the slide plates are inserted into the inner sides of the slide grooves.

6. The cross screw with a durable deep hole nut according to claim 1, characterized in that: The elastic force of the plurality of springs B (9) is greater than the gravity of the base (6), and the outer surface of the clamping plate (705) is covered with a rubber pad.

7. The cross screw with a durable deep hole nut according to claim 1, characterized in that: The arc plate (5) is fixedly connected to the front end surface of the screw head (3) by welding, and the outer surface of the arc plate (5) is covered with a silicone pad.

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