High-stability wear-resistant screw

Abstract

The utility model discloses a high-stability wear-resistant screw which comprises a screw body, the top of the screw body is sleeved with a protective sleeve, a clamping groove is formed in the surface of the bottom of the protective sleeve, a plurality of limiting grooves distributed around the circle center in an array mode are formed in the inner surface of the protective sleeve, and the limiting grooves are all in threaded connection with threaded rods. The threaded rods penetrate to the outer ends of the protective sleeves, the two ends of the interiors of the multiple limiting grooves are fixedly connected with L-shaped supporting plates, the two supporting plates are slidably connected with movable rods in a penetrating mode, the tops of one ends of the two movable rods are fixedly connected with arc-shaped fixing plates, and springs are fixedly connected between the two arc-shaped fixing plates and the inner surfaces of the supporting plates. According to the damping threaded rod, when the threaded rod is rotated to enter materials to generate vibration, the damping effect can be improved, and therefore the stability of the threaded rod body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rods, in particular to a high-stability wear-resistant screw rod. Background Art

[0002] Screw, a cylinder with spiral grooves cut on the outer surface or a cone with spiral grooves cut on the conical surface. Screws have different heads, such as external hexagonal screws, large flat screws, internal hexagonal screws, etc.

[0003] When the existing screw rotates into the material, it will move and rub against the material, causing wear on the screw surface, which may lead to poor stability. For this reason, we propose a high-stability, wear-resistant screw. Utility Model Content

[0004] The utility model aims to provide a high-stability wear-resistant screw to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-stability wear-resistant screw, comprising a screw body, a protective sleeve is sleeved on the top of the screw body, a card slot is opened on the bottom surface of the protective sleeve, a plurality of limit grooves distributed in a circle-centered array are opened on the inner surface of the protective sleeve, a plurality of the limit grooves are threadedly connected with threaded rods, and the threaded rods penetrate to the outer end of the protective sleeve, a plurality of the limit grooves are fixedly connected with L-shaped support plates at both ends, two of the support plates are slidably connected with movable rods, the tops of one ends of the two movable rods are fixedly connected with arc-shaped fixed plates, springs are fixedly connected between the two arc-shaped fixed plates and the inner surfaces of the support plates, and a connecting block is fixedly connected to the outer surface of the arc-shaped fixed plate close to the support plate.

[0006] Preferably, a plurality of fixing holes distributed in a circular array are provided at the upper end of the outer surface of the screw body, and the arc-shaped fixing plates are clamped in the fixing holes.

[0007] Preferably, the inner walls on both sides of several of the limiting grooves are slidably connected with rectangular blocks, the bottoms of several of the rectangular blocks are fixedly connected with pressure plates with hollow interiors, and the rectangular blocks are threadedly connected to the threaded rods.

[0008] Preferably, the top of one end of a plurality of the threaded rods is rotatably connected to the connecting block.

[0009] Preferably, the outer surface of the screw body is coated with a wear-resistant layer.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the pressure plate can be fixed by rotating the threaded rod through the rectangular block, and the stability of the screw can be improved after the screw body is rotated and fixed. Then, through the arrangement of the screw, the connecting block, the arc-shaped fixing plate, the fixing hole, the movable rod, the spring, and the support plate, when the rotating threaded rod enters the material to generate vibration, the shock absorption effect can be improved, thereby ensuring the stability of the threaded rod body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the screw body structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the cross-sectional structure of the protective cover of the utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the arc-shaped fixed plate of the utility model;

[0015] Figure 5 It is a schematic diagram of the spring structure of the utility model.

[0016] In the figure: 1. screw body; 11. fixing hole; 2. protective cover; 21. slot; 22. limit slot; 3. pressure plate; 31. rectangular block; 4. threaded rod; 41. connecting block; 42. arc-shaped fixing plate; 5. support plate; 51. movable rod; 6. spring. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-5The utility model provides a technical solution: a high-stability wear-resistant screw, including a screw body 1, a protective sleeve 2 is sleeved on the top of the screw body 1, a card slot 21 is opened on the bottom surface of the protective sleeve 2, and a plurality of limit grooves 22 distributed in a circle array are opened on the inner surface of the protective sleeve 2, and a plurality of limit grooves 22 are threadedly connected with a threaded rod 4, and the threaded rod 4 penetrates to the outer end of the protective sleeve 2, and both ends of the plurality of limit grooves 22 are fixedly connected with an L-shaped support plate 5, and the two support plates 5 penetrate and slide with a movable rod 51, and the top of one end of the two movable rods 51 is fixedly connected with an arc-shaped fixed plate 42, and a spring 6 is fixedly connected between the two arc-shaped fixed plates 42 and the inner surface of the support plate 5, and a connecting block 41 is fixedly connected to the outer surface of the arc-shaped fixed plate 42 close to the support plate 5.

[0019] Furthermore, a plurality of fixing holes 11 distributed in a circular array are provided on the upper end of the outer surface of the screw body 1, and the arc-shaped fixing plate 42 is clamped in the fixing hole 11. The arc-shaped fixing plate 42 is clamped into the fixing hole 11, and the screw body 1 and the protective sleeve 2 are in a fixed state.

[0020] Furthermore, rectangular blocks 31 are slidably connected to the inner walls on both sides of several limit grooves 22, and pressure plates 3 with hollow interiors are fixedly connected to the bottoms of several rectangular blocks 31, and the rectangular blocks 31 are threadedly connected to the threaded rods 4. When the threaded rods 4 rotate and penetrate the rectangular blocks 31, the pressure plates 3 are in a fixed state, and the pressure plates 3 can improve the stability of the screw body 1.

[0021] Furthermore, the top of one end of a plurality of threaded rods 4 is rotatably connected to the connecting block 41 , and the rotation of the threaded rods 4 drives the connecting block 41 to move inward, thereby driving the arc-shaped fixing plate 42 .

[0022] Furthermore, the outer surface of the screw body 1 is coated with a wear-resistant layer, and the wear-resistant layer can enhance the wear resistance of the screw body 1 .

[0023] Specifically, when using the utility model, first insert the screw body 1 into the slot 21, then pick up the pressure plate 3 and insert it into the limit slot 22 through several rectangular blocks 31, and then rotate the threaded rod 4. The rotation of the threaded rod 4 will drive the connecting block 41 to move inward, thereby driving the arc-shaped fixing plate 42 to be inserted into the fixing hole 11, and at the same time, the threaded rod 4 rotates through the rectangular block 31 to fix its pressure plate 3. At this time, the screw body 1, the protective sleeve 2 and the pressure plate 3 are in a fixed state. When the screw body 1 rotates into the material, it will vibrate, and the spring 6 will be compressed through the arc-shaped fixing plate 42. Through the elastic force of the spring 6, the arc-shaped fixing plate 42 will slide back and forth along the support plate 5 through the movable rod 51, thereby improving the stability of the screw body 1.

[0024] 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 high-stability wear-resistant screw, comprising a screw body (1), characterized in that: The top of the screw body (1) is sleeved with a protective sleeve (2), the bottom surface of the protective sleeve (2) is provided with a slot (21), the inner surface of the protective sleeve (2) is provided with a plurality of limit grooves (22) distributed in a circle array, a plurality of the limit grooves (22) are threadedly connected with a threaded rod (4), and the threaded rod (4) passes through the outer end of the protective sleeve (2), and the two ends of the inner parts of the plurality of limit grooves (22) are fixedly connected with an L-shaped support plate (5), two of the support plates (5) are slidably connected with a movable rod (51), the top of one end of the two movable rods (51) are fixedly connected with an arc-shaped fixed plate (42), a spring (6) is fixedly connected between the two arc-shaped fixed plates (42) and the inner surface of the support plate (5), and a connecting block (41) is fixedly connected to the outer surface of the arc-shaped fixed plate (42) close to the support plate (5).

2. A high stability wear-resistant screw according to claim 1, characterized in that: The upper end of the outer surface of the screw body (1) is provided with a plurality of fixing holes (11) distributed in a circular array, and the arc-shaped fixing plate (42) is clamped in the fixing hole (11).

3. A high stability wear-resistant screw according to claim 1, characterized in that: The inner walls on both sides of a plurality of the limiting grooves (22) are slidably connected with rectangular blocks (31), the bottoms of a plurality of the rectangular blocks (31) are fixedly connected with a pressure plate (3) with a hollow interior, and the rectangular blocks (31) are threadedly connected with the threaded rod (4).

4. The high stability wear-resistant screw according to claim 1, characterized in that: The tops of one ends of a plurality of the threaded rods (4) are rotatably connected to a connecting block (41).

5. The high stability wear-resistant screw according to claim 1, characterized in that: The outer surface of the screw body (1) is coated with a wear-resistant layer.

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