CN217055908U

CN217055908U - Novel corrosion-resistant low temperature resistant high strength check screw

Info

Publication number: CN217055908U
Application number: CN202123456199.3U
Authority: CN
Inventors: 赵建飞
Original assignee: Haiyan Longsheng Technology Co ltd
Current assignee: Haiyan Longsheng Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-26
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a novel corrosion-resistant low-temperature-resistant high-strength anti-loosening screw, which comprises a screw body, wherein one end of the screw is used as an end head, an inner screw hole is arranged at the center of the screw body, an inner screw meshed with the inner screw hole is arranged in the inner screw hole, one end of the screw body, far away from the end head, is provided with a plurality of reaming blocks, the reaming blocks are arranged along the axial direction of the screw, an expansion groove is arranged between the adjacent reaming blocks, a wedge block matched with the expansion groove in shape is arranged in the expansion groove, one end of the inner screw is in interference fit with the wedge block, one end of the inner screw, far away from the wedge block, is provided with a second end head, the middle part of the wedge block is provided with a wedge block hole arranged along the axial direction, one end of the inner screw, far away from the second end head, is provided with an inner screw connecting shaft capable of being in splicing fit with the wedge block hole, so that the anti-loosening performance is improved, and the bolt can be freely disassembled, the use is more convenient. The bolt has the first-class anti-loosening effect and can be repeatedly used for many times.

Description

Novel corrosion-resistant low-temperature-resistant high-strength anti-loosening screw

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of screw rod, especially corrosion-resistant low temperature resistant high strength locking screw rod's technical field.

[ background of the invention ]

Screw rod: the outer surface is cut with a cylinder with a spiral groove or a cone with a conical spiral groove. The screw rods have different heads, and the heads are outer hexagonal screw rods. Still others, such as large flat screws, socket head cap screws, and the like. The existing screw has poor anti-loosening performance and has a loosening risk after a long time.

[ Utility model ] content

The utility model discloses a solve the problem among the prior art, provide a novel corrosion-resistant low temperature resistant high strength locking screw, can improve the locking performance of screw rod.

In order to achieve the purpose, the utility model provides a novel corrosion-resistant low-temperature-resistant high-strength anti-loosening screw, which comprises a screw body, wherein one end of the screw is used as an end socket, an inner screw hole is arranged at the center of the screw body, the inner screw hole is axially arranged along the screw body and penetrates through the screw body and the end socket, an inner screw meshed with the inner screw hole is arranged in the inner screw hole, a plurality of hole expanding blocks are arranged at one end of the screw body, which is far away from the end socket, the hole expanding blocks are axially arranged along the screw, an expanding groove is arranged between every two adjacent hole expanding blocks, the expanding groove is communicated with the inner screw hole, the expanding groove is axially arranged along the screw, the width of the expanding groove is gradually increased from bottom to top, a wedge block matched with the shape of the expanding groove is arranged in the expanding groove, one end of the inner screw is in interference fit with the wedge block, and a second end is arranged at one end of the inner screw, which is far away from the wedge block, a wedge block hole is arranged in the middle of the wedge block along the axial direction of the wedge block, and an inner screw connecting shaft which can be in splicing fit with the wedge block hole is arranged at one end of the inner screw, which is far away from the second end.

As preferred, interior screw rod connecting axle end be equipped with along its axial setting's connecting axle open slot, connecting axle open slot both sides are equipped with the buckle that sets up to the both sides protrusion respectively, the cover is equipped with on the interior screw rod connecting axle is used for with the voussoir is injectd in the epaxial separation blade of interior screw rod connecting, be equipped with on the separation blade can with interior screw rod connecting axle complex separation blade through-hole, the buckle can with separation blade through-hole edge joint cooperation.

Preferably, expansion block open slots are formed in two sides of the reaming block and are arranged along the radial direction of the reaming block, and the expansion block open slots are formed in one end, close to the end head, of the reaming block.

Preferably, the end head is axially provided with a counter bore communicated with the inner screw hole, and the end head is arranged in the counter bore.

Preferably, the side edge of the end head is radially provided with a second screw hole communicated with the inner screw hole, and a headless screw meshed with the second screw hole is arranged in the second screw hole.

The utility model relates to a novel corrosion-resistant low temperature resistant high strength locking screw's beneficial effect: the utility model discloses a set up the reaming piece with screw rod tip, and set up the expansion groove between the reaming piece, after the screw rod is screwed up, can drive the voussoir through rotatory interior screw rod and remove to the one end of keeping away from the end together, voussoir and expansion groove cooperation, outwards extrude the reaming piece of both sides, thereby make the reaming piece can outside perk, can cooperate with the screw inner wall, with the screw rod chucking, improve frictional force, realize the auto-lock, improve locking performance, when needs are dismantled, the reversal of control interior screw rod can be with the unblock of reaming piece, the screw rod can freely be dismantled, and is more convenient to use. The screw rod is first-class in anti-loosening effect and can be repeatedly used for many times. The arrangement of the inner screw connecting shaft and the wedge block hole in a splicing fit mode facilitates fixing of the wedge block, the wedge block is prevented from falling off, and the wedge block is convenient to install and disassemble.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic view of the structure of the novel corrosion-resistant low-temperature-resistant high-strength anti-loose screw.

Fig. 2 is the sectional structure schematic diagram of the novel corrosion-resistant low temperature-resistant high-strength anti-loosening screw rod.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

[ detailed description ] A

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for the convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

The first embodiment is as follows:

referring to fig. 1, 2 and 3, the novel corrosion-resistant, low temperature-resistant and high-strength anti-loosening screw of the present invention comprises a screw body 1, one end of the screw body 1 is used as an end socket 2, an inner screw hole 11 is arranged at the center of the screw body 1, the inner screw hole 11 is axially arranged along the screw body 1, the inner screw hole 11 penetrates through the screw body 1 and the end socket 2, an inner screw 3 engaged with the inner screw hole 11 is arranged in the inner screw hole 11, a plurality of expanding blocks 12 are arranged at one end of the screw body 1 away from the end socket 2, the expanding blocks 12 are axially arranged along the screw body 1, an expanding groove 13 is arranged between the adjacent expanding blocks 12, the expanding groove 13 is communicated with the inner screw hole 11, the expanding groove 13 is axially arranged along the screw body 1, the expanding groove 13 gradually increases in width from bottom to top, a wedge 6 matched with the expanding groove 13 in shape is arranged in the expanding groove 13, one end of the inner screw 3 is in interference fit with the wedge 6, a second end 31 is arranged at one end, far away from the wedge 6, of the inner screw 3, a wedge hole 61 is formed in the middle of the wedge 6 in the axial direction of the wedge, and an inner screw connecting shaft 32 capable of being in plug-in fit with the wedge hole 61 is arranged at one end, far away from the second end 31, of the inner screw 3. This embodiment is through setting up reaming piece 12 with screw rod 1 tip, and with setting up expansion groove 13 between the reaming piece 12, after screw rod 1 screws up, can drive voussoir 6 through rotatory interior screw rod 3 and remove to the one end of keeping away from end 2 together, voussoir 6 and expansion groove 13 cooperation, outwards extrude the reaming piece 12 of both sides, thereby make reaming piece 12 can outwards perk, can cooperate with the screw inner wall, with the screw rod chucking, improve frictional force, realize the auto-lock, improve locking performance, when needs are dismantled, control interior screw rod 3 reversal can be with reaming piece 12 unblock, the screw rod can freely be dismantled, and it is more convenient to use. The screw rod is first-class in anti-loosening effect and can be repeatedly used for many times. The arrangement of the inner screw connecting shaft 32 and the wedge block hole 61 in a splicing fit facilitates fixing of the wedge block 6, avoids dropping of the wedge block 6, and facilitates mounting and dismounting of the wedge block 6.

Referring to fig. 1, 2 and 3, the end of the inner screw connecting shaft 32 is provided with a connecting shaft opening groove 321 arranged along the axial direction thereof, two sides of the connecting shaft opening groove 321 are respectively provided with a buckle 322 arranged to protrude from two sides, the inner screw connecting shaft 32 is sleeved with a block piece 4 for limiting the wedge block 6 on the inner screw connecting shaft 32, the block piece 4 is provided with a block piece through hole 41 matched with the inner screw connecting shaft 32, and the buckle 322 can be matched with the edge of the block piece through hole 41 in a clamping manner. Set up detachable separation blade 4 and be convenient for fix voussoir 6 on interior screw rod connecting axle 32, avoid voussoir 6 to drop, through buckle 322 and the cooperation of separation blade through-hole 41 joint, the installation of the separation blade 4 of being convenient for and voussoir 6 is dismantled, and buckle structure is difficult for receiving vibrations influence, is difficult not hard up under long-time vibrations.

Referring to fig. 1, 2 and 3, two sides of the reaming block 12 are provided with an expanding block opening groove 121 arranged along the radial direction thereof, and the expanding block opening groove 121 is arranged at one end of the reaming block 12 close to the head 2. Facilitating the expansion of the reamer block 12 under force.

Referring to fig. 1, 2 and 3, a counter bore 111 communicated with the internal screw hole 11 is axially formed on the head 2, and the head 2 is disposed in the counter bore 111

Referring to fig. 1, 2 and 3, a second screw hole 112 communicated with the inner screw hole 11 is radially formed in a side edge of the end head 2, and a headless screw 5 engaged with the second screw hole 112 is formed in the second screw hole 112. The headless screw 5 can be in interference fit with the inner screw 3 to lock the inner screw 3.

The utility model discloses the working process:

the utility model relates to a novel corrosion-resistant low temperature resistant high strength anti-loosening screw is in the course of the work, after screw rod 1 screws up, can drive voussoir 6 through rotatory interior screw rod 3 and remove to the one end of keeping away from end 2 together, voussoir 6 cooperates with expansion groove 13, outwards extrude reaming piece 12 of both sides, thereby make reaming piece 12 can outwards perk, can cooperate with the screw inner wall, with the screw rod chucking, improve frictional force, realize the auto-lock, improve locking performance, when needs are dismantled, interior screw rod 3 reversal can be with reaming piece 12 unblock, the screw rod can freely be dismantled, high convenience is used, interior screw rod 3 screws up the back in place, screw up headless screw 5, headless screw 5 can contradict the cooperation with interior screw rod 3, lock interior screw rod 3.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a novel corrosion-resistant low temperature resistant high strength check screw, includes screw body (1), screw body (1) one end is as end (2), its characterized in that: the central screw rod body (1) is provided with an inner screw hole (11), the inner screw hole (11) is axially arranged along the screw rod body (1), the inner screw hole (11) penetrates through the screw rod body (1) and the end head (2), an inner screw rod (3) meshed with the inner screw hole (11) is arranged in the inner screw hole (11), one end, far away from the end head (2), of the screw rod body (1) is provided with a plurality of expanding blocks (12), the expanding blocks (12) are axially arranged along the screw rod body (1), an expanding groove (13) is arranged between every two adjacent expanding blocks (12), the expanding groove (13) is communicated with the inner screw hole (11), the expanding groove (13) is axially arranged along the screw rod body (1), the expanding groove (13) is gradually increased from bottom to top in width, a wedge block (6) matched with the expanding groove (13) in shape is arranged in the expanding groove (13), inner screw (3) one end with voussoir (6) conflict cooperation, keep away from on inner screw (3) the one end of voussoir (6) is equipped with second end (31), voussoir (6) middle part is equipped with wedge hole (61) along its axial setting, keep away from on inner screw (3) the one end of second end (31) be equipped with can with wedge hole (61) grafting complex inner screw connecting axle (32).

2. The novel corrosion-resistant low-temperature-resistant high-strength anti-loosening screw rod as claimed in claim 1, wherein: interior screw rod connecting axle (32) end is equipped with connecting axle open slot (321) that sets up along its axial, connecting axle open slot (321) both sides are equipped with buckle (322) that set up to the both sides protrusion respectively, interior screw rod connecting axle (32) go up the cover be equipped with be used for with voussoir (6) are injectd separation blade (4) on the interior screw rod connecting axle (32), be equipped with on separation blade (4) can with interior screw rod connecting axle (32) complex separation blade through-hole (41), buckle (322) can with separation blade through-hole (41) edge joint cooperation.

3. The novel corrosion-resistant low-temperature-resistant high-strength check screw as claimed in claim 1, wherein: and expansion block open grooves (121) which are arranged along the radial direction of the hole expansion block (12) are formed in the two sides of the hole expansion block (12), and the expansion block open grooves (121) are formed in one ends, close to the end heads (2), of the hole expansion block (12).

4. The novel corrosion-resistant low-temperature-resistant high-strength anti-loosening screw rod as claimed in claim 1, wherein: a counter bore (111) communicated with the inner threaded hole (11) is axially arranged on the end head (2), and the end head (2) is arranged in the counter bore (111).

5. The novel corrosion-resistant low-temperature-resistant high-strength check screw as claimed in claim 1, wherein: and a second screw hole (112) communicated with the inner screw hole (11) is radially arranged on the side edge of the end head (2), and a headless screw (5) meshed with the second screw hole (112) is arranged in the second screw hole.