Anti-skid T-shaped bolt

Abstract

The utility model relates to an anti-skidding T-shaped bolt which is composed of a head portion and a rod portion, the rod portion is located below the head portion and arranged in the shape of a cylinder extending up and down in the length direction, external threads are arranged in the circumferential direction of the rod portion, the anti-skidding T-shaped bolt further comprises a protective sleeve made of materials prone to deformation, and the head portion is arranged in a halfpace shape with the narrow upper portion and the wide lower portion. A mounting groove matched with the head in shape and size is formed in the protective sleeve, a mounting opening is formed in the portion, below the mounting groove, of the protective sleeve, the width of the mounting opening is the same as that of the upper end face of the head, and a plurality of contact grooves are formed in the protective sleeve in the circumferential direction at intervals. By the adoption of the scheme, the anti-skid T-shaped bolt is provided, the protective sleeve is installed on the head to make contact with the contact grooves, and therefore the possibility that the bolt slips on the head when the bolt is rotated is reduced.

Description

Technical Field

[0001] The utility model relates to a T-shaped bolt, in particular to an anti-slip T-shaped bolt. Background Art

[0002] T-bolts, also known as hammer head bolts or hammer bolts, are fasteners shaped like the English letter "T" and are widely used in various industrial and construction engineering fields. They mainly consist of two parts: a flat head and a straight rod with threads arranged around the circumference of the straight rod.

[0003] When tightening or loosening bolts, the operating tool can easily fall off the smooth bolt head, making the operation process laborious and inefficient. Improper use of tools or excessive force due to slippage may damage the bolt head or the surface of the component connected to it. In addition, in applications that require precise torque control, head slippage will prevent the required tightening accuracy from being achieved, affecting the performance and service life of the product.

[0004] Therefore, how to achieve anti-slip of the T-bolt head has become a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of the shortcomings of the prior art, the utility model aims to provide an anti-skid T-bolt which reduces the possibility of slipping on the head when the bolt is turned by installing a protective cover on the head so as to contact each contact groove.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it consists of a head and a rod, the rod is located below the head and is arranged in a cylindrical shape extending up and down in the length direction, the rod is circumferentially provided with an external thread, and also includes a protective sleeve made of a material that is easy to deform, the head is arranged in a stepped shape that is narrow at the top and wide at the bottom, the protective sleeve is provided with an installation groove whose shape and size are matched with the head, the protective sleeve is provided with an installation port located below the installation groove, the width of the installation port is the same as the width of the upper end face of the head, and the protective sleeve is provided with a plurality of contact grooves at intervals in the circumferential direction.

[0007] The utility model is further configured as follows: the head portion is provided with a plurality of positioning insert blocks protruding downward, and the protective cover is provided with positioning slots corresponding to the positioning insert blocks.

[0008] The utility model is further configured as follows: each of the positioning plugs is arranged in a step-shaped configuration with a width at the top and a narrowness at the bottom, and each of the positioning slots is arranged in a cubic configuration with a width the same as that of the upper end surface of the corresponding positioning plug.

[0009] The utility model is further configured as follows: it also includes oil storage cotton and a cover body, the head is provided with a first flow groove, the rod is provided with a second flow groove corresponding to the first flow groove, the cover is located on the top of the first flow groove and is detachably connected to the protective cover, the oil storage cotton is located in the first flow groove and the second flow groove, the rod is provided with a plurality of left outflow grooves and right outflow grooves, and each of the left outflow grooves and the right outflow grooves is interconnected with the second flow groove.

[0010] The utility model is further configured as follows: each of the left outflow grooves is arranged to be inclined from right to left from top to bottom, and the right outflow groove is arranged to be inclined from left to right from top to bottom.

[0011] The utility model is further configured as follows: the upper end of the oil storage cotton includes a limiting portion, the first circulation groove is adapted to the diameter of the oil storage cotton and is larger than the second circulation groove, the limiting portion is located in the first circulation groove and the bottom end is against the upper end surface of the second circulation groove.

[0012] The utility model is further configured as follows: the cover body is threadedly matched with the protective sleeve and a disassembly groove is arranged on the cover body.

[0013] By adopting the above technical solution, 1. Since the width of the installation opening of the protective cover is the same as the width of the upper end surface of the head and the protective cover is made of a material that is easy to deform, after the upper end surface through which the head passes is aligned with the installation opening, the head needs to forcibly pass through the installation opening to achieve cooperation with the installation groove. When the head is installed in the installation groove, the bottom end of the head is in contact with the installation opening, and the head is a stepped platform with a narrow top and a wide bottom. Therefore, without the action of external force, the head will not fall downward and separate from the protective cover, so that the protective cover can be stably mounted on the head; 2. Since the protective cover is provided with a plurality of Contact groove, so torque will be applied to the protective sleeve during the rotation of the head, and the setting of each contact groove can increase the circumferential roughness of the protective sleeve, that is, increase the friction of the protective sleeve, thereby reducing the possibility of slipping between the hand or the operating tool and the bolt head during the rotation of the head; 3. Since the contact groove is located on the protective sleeve and the protective sleeve is arranged on the head, the bolt head can be prevented from slipping and when the protective sleeve is worn, a new protective sleeve can be replaced to continue to prevent slipping of the bolt head without opening a contact groove on the head, making it easier to prevent slipping of the bolt head. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is an assembly diagram of a specific implementation method of the utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 This is an exploded view of the utility model from another perspective;

[0018] Figure 4 It is a cross-sectional view of the utility model.

[0019] In the figure: 1-head, 11-positioning plug, 12-first flow slot;

[0020] 2-rod, 21-external thread, 22-second flow groove, 23-left outflow groove, 24-right outflow groove;

[0021] 3-protective cover, 31-installation slot, 32-installation port, 33-positioning slot, 34-contact slot;

[0022] 4-oil storage cotton, 41-limiting part;

[0023] 5-cover body, 51-disassembly slot. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1-Figure 4As shown, the utility model discloses an anti-slip T-bolt, which consists of a head 1 and a rod 2, wherein the rod 2 is located below the head 1 and is arranged in a cylindrical shape extending up and down in the length direction, and the rod 2 is circumferentially provided with an external thread 21, and the two connecting members can be fixed together by the bolt by rotating the rod 2, and also includes a protective sleeve 3 made of a deformable material such as rubber, the head 1 is arranged in a stepped shape with a narrow upper part and a wide lower part, and a mounting groove 31 with a shape and size matched with the head 1 is arranged in the protective sleeve 3, and a loading port 32 is arranged below the mounting groove 31 on the protective sleeve 3, and the width of the loading port 32 is the same as the width of the upper end face of the head 1, and a plurality of contact grooves 34 are arranged at intervals in the circumferential direction of the protective sleeve 3, 1. Since the width of the loading port 32 of the protective sleeve 3 is the same as the width of the upper end face of the head 1 and the protective sleeve 3 is made of a deformable material, after the upper end face through which the head 1 passes is aligned with the loading port 32, at this time, the head 1 needs to forcibly pass through the loading port 32 to achieve contact with the mounting groove 31, and when the head 1 is installed in the installation groove 31, the bottom end of the head 1 is in contact with the installation port 32, and the head 1 is a stepped platform with a narrow top and a wide bottom. Therefore, in the absence of external force, the head 1 will not fall downward and separate from the protective sleeve 3, so that the protective sleeve 3 can be stably mounted on the head 1; 2. Since a plurality of contact grooves 34 are provided on the protective sleeve 3, torque will be applied to the protective sleeve 3 during the rotation of the head 1, and the provision of each contact groove 34 can increase the circumferential roughness of the protective sleeve 3, that is, increase the friction of the protective sleeve 3, thereby reducing the possibility of slipping between the hand or the operating tool and the bolt head 1 during the rotation of the head 1; 3. Since the contact groove 34 is located on the protective sleeve 3 and the protective sleeve 3 is mounted on the head 1, the anti-slip of the bolt head 1 is achieved, and when the protective sleeve 3 is worn, the new protective sleeve 3 can be replaced to continue to achieve the anti-slip of the bolt head 1, without the need to provide a contact groove 34 on the head 1, so that the anti-slip of the bolt head 1 is achieved more simply.

[0026] Among them, the head 1 is provided with a plurality of positioning blocks 11 protruding downward, and the protective cover 3 is provided with positioning slots 33 corresponding to the positioning blocks 11. Since the positioning blocks 11 on the head 1 will be inserted into the positioning slots 33 corresponding to the protective cover 3, after the protective cover 3 is installed on the outside of the head 1, the protective cover 3 will not move forward, backward, left or right, so that if the connecting parts fixed together by bolts shake, the protective cover 3 can still be stably located on the head 1 of the bolt.

[0027] Preferably, each of the positioning blocks 11 is arranged in a step-like shape that is wide at the top and narrow at the bottom, and each of the positioning slots 33 is arranged in a cubic shape with a width the same as the width of the upper end surface of the corresponding positioning block 11. When the protective cover 3 is put on the head 1, each positioning block 11 will be inserted into the corresponding positioning slot 33. Because the bottom surface of the positioning slot 33, that is, the part with the smallest width, is the first part of each positioning block 11 to enter the corresponding positioning slot 33, the positioning block 11 arranged in a step-like shape that is wide at the top and narrow at the bottom provides convenience for cooperation with the positioning slot 33.

[0028] In addition, it also includes oil storage cotton 4 and cover body 5, the head 1 is provided with a first flow groove 12, the rod 2 is provided with a second flow groove 22 corresponding to the first flow groove 12, the cover body 5 is located at the top of the first flow groove 12 and is detachably connected to the protective cover 3 by means of snaps, threads, etc., the oil storage cotton 4 is located in the first flow groove 12 and the second flow groove 22, and the rod 2 is provided with a plurality of left outflow grooves 23 and right outflow grooves 24, each of the left outflow grooves 23 and the right outflow grooves 24 are interconnected with the second flow groove 22, because the lubricating oil injected from the first flow groove 12 can be absorbed by the oil storage cotton 4 without the action of external force, and then the cover body 5 is installed on the protective cover 3 so that the oil storage cotton 4 is located inside The lubricating oil will not flow out of the head 1. When lubrication is needed for rust or the like between the rod 2 and the screw hole of the connecting piece, the cover 5 is removed, and then a force-applying tool is inserted to apply force to the oil storage cotton 4, so that the squeezed oil storage cotton 4 can squeeze out the lubricating oil. At this time, the lubricating oil can flow to the left outflow groove 23 and the right outflow groove 24 under the action of gravity, that is, fall into the external thread 21 of the rod 2 and the screw hole to achieve lubrication and facilitate the disassembly of the bolt. In addition, in some application scenarios where the installation space is limited, the design of the left outflow groove 23 and the right outflow groove 24 saves space, so that the bolt still has lubrication performance in a compact space layout without having to rely too much on external manual application of lubricants.

[0029] Preferably, each of the left outflow grooves 23 is inclined from right to left from top to bottom, and the right outflow groove 24 is inclined from left to right from top to bottom. The inclined left outflow groove 23 and right outflow groove 24 extend the moving path of the lubricating oil outflow, which helps the lubricating oil to more easily penetrate into the deeper working area of ​​the rod 2 during subsequent maintenance, thereby improving maintenance efficiency.

[0030] Among them, the upper end of the oil storage cotton 4 includes a limiting portion 41, the first circulation groove 12 is adapted to the diameter of the oil storage cotton 4 and is larger than the second circulation groove 22, the limiting portion 41 is located in the first circulation groove 12 and the bottom end is against the upper end surface of the second circulation groove 22. Since the upper end diameter of the oil storage cotton 4 is larger than the diameter of the second circulation groove 22, the compression direction of the lubricating oil squeezed out of the oil storage cotton 4 is limited and the oil storage cotton 4 will not move downward excessively during the extrusion process, resulting in difficulty in contacting the oil storage cotton 4 later.

[0031] Among them, the cover body 5 is threadedly matched with the protective cover 3 and a disassembly groove 51 is provided on the cover body 5. Since the cover body 5 is threadedly matched with the protective cover 3, the lubricating oil can be injected into the oil storage cotton 4 by inserting the force-applying tool into the disassembly groove 51 and then rotating the cover body 5. When the cover body 5 is located on the protective cover 3, the lubricating oil will not flow out of the head 1 and the protective cover 3.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-slip T-bolt, consisting of a head and a stem, wherein the stem is located below the head and is arranged as a cylinder extending up and down in the length direction, and the stem is provided with external threads in the circumferential direction, characterized in that: It also includes a protective cover made of a material that is easy to deform. The head is in a stepped shape that is narrow at the top and wide at the bottom. The protective cover is provided with an installation groove whose shape and size are matched with the head. The protective cover is provided with an installation port below the installation groove. The width of the installation port is the same as the width of the upper end surface of the head. The protective cover is provided with a plurality of contact grooves at intervals in the circumferential direction.

2. The anti-slip T-bolt according to claim 1, characterized in that: The head portion is provided with a plurality of positioning plugs protruding downward, and the protective cover is provided with positioning slots corresponding to the positioning plugs.

3. The anti-slip T-bolt according to claim 2, characterized in that: Each of the positioning plugs is arranged in a stepped shape with a width at the top and a narrowness at the bottom, and each of the positioning slots is arranged in a cubic shape with a width the same as that of the upper end surface of the corresponding positioning plug.

4. The anti-slip T-bolt according to claim 1, characterized in that: It also includes oil storage cotton and a cover body, the head is provided with a first flow groove, the rod is provided with a second flow groove corresponding to the first flow groove, the cover is located on the top of the first flow groove and is detachably connected to the protective cover, the oil storage cotton is located in the first flow groove and the second flow groove, the rod is provided with a plurality of left outflow grooves and right outflow grooves, and each of the left outflow grooves and the right outflow grooves are interconnected with the second flow groove.

5. The anti-slip T-bolt according to claim 4, characterized in that: Each of the left outflow grooves is arranged to be inclined from right to left from top to bottom, and the right outflow groove is arranged to be inclined from left to right from top to bottom.

6. The anti-slip T-bolt according to claim 4, characterized in that: The upper end of the oil storage cotton includes a limiting portion, the first circulation groove is adapted to the diameter of the oil storage cotton and is larger than the second circulation groove, the limiting portion is located in the first circulation groove and the bottom end is against the upper end surface of the second circulation groove.

7. The anti-slip T-bolt according to claim 4, characterized in that: The cover body is threadably matched with the protective sleeve and a disassembly groove is arranged on the cover body.

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