Screw with good anti-loosening effect

Abstract

The utility model discloses a screw with a good anti-loosening effect, which relates to the technical field of screws and comprises a screw body, a base ring is fixedly sleeved on the outer side of the upper end of the screw body, a plurality of auxiliary nails are mounted in the base ring in an equal-angle threaded manner, and a cover plate is mounted at the upper end of the base ring in a matched manner. A plurality of pressing blocks are installed at the lower end of the cover plate at equal angles, the pressing blocks and the auxiliary nails are arranged in a one-to-one correspondence mode, and the cover plate covers the auxiliary nails through the pressing blocks; connecting pieces are installed on the left side and the right side of the cover plate, and the cover plate is detachably connected with the base ring through the connecting pieces. According to the screw with the good anti-loosening effect, the auxiliary screws are arranged on the base ring, so that the connection stability between the screw body and a connected object is enhanced, loosening is prevented, meanwhile, the installation firmness of the auxiliary screws is improved through the gaskets and the pressing blocks on the cover plate, and the fastening effect of the screw body is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw technical field, concretely is a kind of screw with good anti-loosening effect. BACKGROUND

[0002] In many fields such as mechanical manufacturing, construction engineering, electronic equipment, screw is used frequently as basic and key connecting component.

[0003] However, traditional screw faces severe challenge in practical application. Due to the complexity of working environment, such as continuous vibration of mechanical equipment, wind and earthquake force impact on building structure, and jolt suffered by electronic equipment in transportation process, ordinary screw is prone to loosening phenomenon. Screw loosening not only leads to the stability of connecting part to decline, affects the normal operation of equipment or structure, and even can cause safety accident, causes inestimable economic loss and personnel casualty when serious. Therefore, how to improve the anti-loosening performance of screw becomes important problem to be solved in industry.

[0004] Therefore, we propose a kind of screw with good anti-loosening effect to solve the problems proposed in the above. UTILITY MODEL CONTENT

[0005] 1. The technical problem to be solved by the utility model is:

[0006] The utility model aims at providing a kind of screw with good anti-loosening effect to solve the problems in the above background art.

[0007] 2. Technical scheme:

[0008] To achieve the above object, the utility model provides the following technical scheme: a kind of screw with good anti-loosening effect, including screw body, the upper end outside of the screw body is equipped with fixed base ring, the inside of the base ring is installed with several auxiliary nails at equal angles, and the upper end of base ring is installed with cover plate in cooperation, the lower end of the cover plate is installed with several pressing blocks at equal angles, the pressing block and auxiliary nail are set one to one, and the cover plate covers auxiliary nail by pressing block;

[0009] The left and right sides of the cover plate are both installed with connecting piece, and the cover plate forms detachable connection with base ring by connecting piece.

[0010] Further, the upper end inside of the base ring is provided with auxiliary hole for placing auxiliary nail, the lower end outside of the auxiliary nail is equipped with gasket, and the upper end of the left and right sides of the base ring is provided with positioning slot for placing connecting piece.

[0011] Through the above technical scheme, gasket and auxiliary nail can be placed and installed in auxiliary hole in sequence.

[0012] Further, the gasket and the pressing block are both made of rubber material.

[0013] Through the above technical scheme, the auxiliary nail can improve stability under the action of the gasket and the pressing block.

[0014] Further, the connecting piece includes two connecting blocks, the two connecting blocks are respectively fixed on the left and right sides of the cover plate, a positioning block is slidingly installed in the inside of the connecting block, a driving groove is formed in the inside of the positioning block, a driving rod is attached to the top of the driving groove, and the driving rod is slidingly installed in the inside of the connecting block, and the positioning block is driven to move outward of the cover plate by pressing the driving rod downward.

[0015] Through the above technical scheme, when the driving rod is pressed downward, the positioning block can be moved out of the inside of the base ring.

[0016] Further, the lower side of the positioning block near the center of the cover plate is obliquely arranged, and a pressure spring is connected between the inside of the connecting block and the positioning block.

[0017] Through the above technical scheme, when the cover plate is installed downward, the positioning block does not block the downward movement of the cover plate due to the oblique design, and after moving to the appropriate position, the positioning block extends into the inside of the base ring under the elastic action of the pressure spring, realizing quick connection.

[0018] Further, the upper end of the driving rod is fixed with a driving plate, a reset spring is sleeved on the outside of the driving rod, and the two ends of the reset spring are respectively connected to the driving plate and the connecting block.

[0019] Through the above technical scheme, under the action of the reset spring, the driving plate and the driving rod can be driven to move upward to restore to the original position.

[0020] Further, a through hole is formed in the inside of the cover plate corresponding to the position of the driving plate.

[0021] Through the above technical scheme, the driving plate can be pressed through the through hole.

[0022] Further, a pressing rod is screw-mounted on the side of the connecting block, and the pressing rod is used to limit the movement of the positioning block.

[0023] Through the above technical scheme, the pressing rod is rotated to make the end of the pressing rod tightly press against the side of the positioning block, so as to limit the movement of the positioning block and avoid the sliding of the positioning block due to vibration.

[0024] 3. Beneficial effects:

[0025] Compared with the prior art, the screw with good anti-loosening effect of the present invention has several auxiliary pins on the base ring to enhance the connection stability between the screw body and the connected object and prevent loosening. At the same time, the installation firmness of the auxiliary pins is improved by using washers and pressure blocks on the cover plate, which further improves the fastening effect of the screw body. The specific details are as follows:

[0026] By installing several auxiliary pins inside the base ring, the screw body is less likely to loosen due to vibration or other reasons during use. After the auxiliary pins are installed, the direction of the cover plate is adjusted according to the positional correspondence between the connector and the positioning groove, as well as the positional correspondence between the pressure block and the auxiliary pins. Then, the cover plate is installed on top of the base ring. During the downward movement of the cover plate, since the end of the positioning block is inclined, when the cover plate moves the connector to the appropriate position, the positioning block extends into the interior of the base ring under the action of the pressure spring, thereby realizing the connection between the cover plate and the base ring. Then, the clamping rod is rotated to make the end of the clamping rod press tightly against the end of the positioning block, limiting the positioning block and improving the connection stability. Thus, the auxiliary pin is effectively protected by the washer and the pressure block, improving the stability of the auxiliary pin.

[0027] When it is necessary to remove the screw, rotate the clamping rod in the opposite direction, and then press the drive plate down through the through hole. This will cause the drive rod to slide in the drive groove, moving the positioning block away from the inside of the base ring. The cover plate can then be removed from the base ring, and the auxiliary nail and screw body can be removed one by one using external tools. Attached Figure Description

[0028] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Fig. 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0030] Fig. 3 This is a schematic diagram of the exploded structure of this utility model;

[0031] Fig. 4 This is a schematic diagram of the structure of this utility model from another perspective of explosion;

[0032] Fig. 5 This is a schematic diagram of the orthographic section of the base ring structure of this utility model;

[0033] Fig. 6 This is a side sectional view of the connector of this utility model.

[0034] In the figure: 1, screw body; 2, base ring; 21, auxiliary hole; 22, gasket; 23, positioning groove; 3, auxiliary nail; 4, cover plate; 41, through hole; 42, pressing block; 5, connecting piece; 51, connecting block; 52, positioning block; 521, driving groove; 53, pressure spring; 54, driving rod; 541, driving plate; 55, reset spring; 56, pressing rod. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. EMBODIMENT

[0039] Please refer to Figs. 1-6The utility model provides a screw with good anti-loosening effect, which comprises a screw body 1, a base ring 2 fixedly arranged on the outer side of the upper end of the screw body 1, a plurality of auxiliary nails 3 installed in the base ring 2 at equal angles, a cover plate 4 installed on the upper end of the base ring 2, a plurality of pressing blocks 42 installed on the lower end of the cover plate 4 at equal angles, the pressing blocks 42 corresponding to the auxiliary nails 3 one by one, and the cover plate 4 covering the auxiliary nails 3 through the pressing blocks 42; an auxiliary hole 21 for placing the auxiliary nails 3 is formed in the upper end of the base ring 2, a gasket 22 is arranged on the outer side of the lower end of the auxiliary nail 3, and a positioning groove 23 for placing a connecting piece 5 is formed in the upper end of each of the left and right sides of the base ring 2; the gasket 22 and the pressing block 42 are made of rubber;

[0040] After the screw body 1 is connected to an object by using an external tool, the gaskets 22 are placed in the auxiliary holes 21 formed in the base ring 2 in sequence, and then the auxiliary nails 3 are installed in sequence; under the action of the auxiliary nails 3 distributed at equal angles, the screw body 1 is not easy to loosen due to vibration and other reasons during use.

[0041] The connecting pieces 5 are installed on the left and right sides of the cover plate 4, and the cover plate 4 and the base ring 2 are detachably connected through the connecting pieces 5; the connecting piece 5 comprises two connecting blocks 51 fixedly arranged on the left and right sides of the cover plate 4, a positioning block 52 slidingly arranged in the connecting block 51, a driving groove 521 formed in the positioning block 52, a driving rod 54 arranged above the driving groove 521, the driving rod 54 slidingly installed in the connecting block 51, the positioning block 52 moving outwardly relative to the cover plate 4 by pressing the driving rod 54 downward, the lower side of the positioning block 52 close to the center of the cover plate 4 being arranged in an inclined manner, a pressure spring 53 connected between the positioning block 52 and the connecting block 51, a driving plate 541 fixedly arranged on the upper end of the driving rod 54, a return spring 55 arranged on the outer side of the driving rod 54, the two ends of the return spring 55 being connected to the driving plate 541 and the connecting block 51 respectively, a through hole 41 formed in the cover plate 4 corresponding to the position of the driving plate 541, and a pressing rod 56 screwedly installed on the side of the connecting block 51, the pressing rod 56 being used for limiting the movement of the positioning block 52;

[0042] After several auxiliary nails 3 are installed, the direction of the cover plate 4 is adjusted according to the positional correspondence between the connector 5 and the positioning groove 23 and the positional correspondence between the pressure block 42 and the auxiliary nail 3. Then the cover plate 4 is installed above the base ring 2. During the downward movement of the cover plate 4, since the end of the positioning block 52 is inclined, it will not affect the downward movement of the cover plate 4. When the cover plate 4 drives the connector 5 to move to the appropriate position, the positioning block 52 extends into the interior of the base ring 2 under the action of the pressure spring 53, thereby realizing the connection between the cover plate 4 and the base ring 2. Then the clamping rod 56 is rotated to make the end of the clamping rod 56 press tightly against the end of the positioning block 52, limiting the positioning block 52 and improving the connection stability. Thus, the auxiliary nail 3 is effectively protected by the washer 22 and the pressure block 42, and the stability of the auxiliary nail 3 is improved.

[0043] When it is necessary to remove the screw, rotate the clamping rod 56 in the opposite direction, and then press the drive plate 541 down through the through hole 41, causing the drive rod 54 to slide in the drive groove 521, and causing the positioning block 52 to move away from the inside of the base ring 2. The cover plate 4 can then be removed from the base ring 2, and the auxiliary nail 3 and the screw body 1 can be removed in sequence using external tools.

[0044] Working principle: When using this screw with good anti-loosening effect, such as Figs. 1-6 As shown, firstly, use an external tool to connect the screw body 1 to the object, then place the washers 22 in sequence, and then install the auxiliary nails 3 in sequence. Under the action of the auxiliary nails 3 distributed at equal angles, the screw body 1 is not easy to loosen due to vibration or other reasons during use. Then, adjust the direction of the cover plate 4 and install the cover plate 4 above the base ring 2. After it is installed in a suitable position, the positioning block 52 extends into the interior of the base ring 2 under the action of the pressure spring 53. Then, rotate the clamping rod 56 to make the end of the clamping rod 56 press tightly against the end of the positioning block 52, thereby improving the connection stability. Thus, under the action of the washers 22 and the clamping block 42, the auxiliary nail 3 can be effectively protected and its stability improved. Then, rotate the clamping rod 56 and press the drive plate 541 to remove the cover plate 4, and then the auxiliary nail 3 and the screw body 1 can be removed.

[0045] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A screw with good anti-loosening effect, characterized in that: Including screw body (1), the upper end of the screw body (1) is externally provided with a base ring (2), a plurality of auxiliary nails (3) are installed in the base ring (2) at equal angles, and a cover plate (4) is installed on the upper end of the base ring (2), a plurality of pressing blocks (42) are installed on the lower end of the cover plate (4) at equal angles, the pressing blocks (42) are arranged one by one corresponding to the auxiliary nails (3), and the cover plate (4) covers the auxiliary nails (3) through the pressing blocks (42). ​ The left and right sides of the cover plate (4) are provided with connecting pieces (5), and the cover plate (4) is detachably connected with the base ring (2) through the connecting pieces (5).

2. The screw with good anti-loosening effect according to claim 1, characterized in that: An auxiliary hole (21) for placing the auxiliary nail (3) is formed in the upper end of the base ring (2), a gasket (22) is sleeved on the lower end of the auxiliary nail (3), and a positioning groove (23) for placing the connecting piece (5) is formed in the upper end of the left and right sides of the base ring (2).

3. The screw with good anti-loosening effect according to claim 2, characterized in that: The gasket (22) and the pressing block (42) are both made of rubber.

4. The screw with good anti-loosening effect according to claim 1, characterized in that: The connecting piece (5) includes two connecting blocks (51), the left and right sides of the cover plate (4) are respectively provided with the connecting blocks (51), the inside of the connecting block (51) is slidably provided with a positioning block (52), the inside of the positioning block (52) is provided with a driving groove (521), the upper side of the driving groove (521) is provided with a driving rod (54), the driving rod (54) is slidably installed in the inside of the connecting block (51), and the positioning block (52) is driven to move outward of the cover plate (4) by pressing the driving rod (54) downward.

5. The screw with good anti-loosening effect according to claim 4, characterized in that: The lower side of the positioning block (52) near the center of the cover plate (4) is arranged in an inclined manner, and a pressure spring (53) is connected between the inside of the positioning block (52) and the connecting block (51).

6. The screw with good anti-loosening effect according to claim 4, characterized in that: The upper end of the driving rod (54) is fixedly provided with a driving plate (541), the outside of the driving rod (54) is sleeved with a reset spring (55), and the two ends of the reset spring (55) are connected to the driving plate (541) and the connecting block (51) respectively.

7. The screw with good anti-loosening effect according to claim 6, characterized in that: A through hole (41) is formed in the inside of the cover plate (4) corresponding to the position of the driving plate (541).

8. The screw with good anti-loosening effect according to claim 4, characterized in that: A pressing rod (56) is threadedly installed on the side of the connecting block (51), and the pressing rod (56) is used for limiting the movement of the positioning block (52).

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