CN215950089U

CN215950089U - Waterproof special combination screw

Info

Publication number: CN215950089U
Application number: CN202122238447.0U
Authority: CN
Inventors: 王峰伟
Original assignee: Zhejiang Xinshengda Metal Technology Development Co ltd
Current assignee: Zhejiang Xinshengda Metal Technology Development Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-03-04
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a waterproof special combined screw, which comprises a screw head, a screw rod, a mounting groove, a seal sleeve, a first cavity, a cushion block, a second cavity, a first mounting hole, a second mounting hole, a connecting hole, an air inlet nozzle, an air outlet nozzle, a sink groove, a seal ring, a groove, a bottom plate and a spring, wherein the bottom of the screw head is fixedly provided with the screw rod, the side part of the screw rod is provided with an annular mounting groove, the inner side of the mounting groove is provided with the annular seal sleeve, the inner side wall of the seal sleeve is fixedly connected with the mounting groove in a sealing manner, the inner part of the seal sleeve is provided with the annular first cavity, the outer side of the screw rod is sleeved with the annular cushion block, the inner part of the cushion block is provided with the annular second cavity, the inner side wall of the mounting groove is provided with the first mounting hole transversely penetrating through the screw rod, compared with the prior art, the waterproof performance of the screw can be obviously improved, and water leakage from the screw hole can be effectively prevented, the practicality and the security of screw have been promoted, simple structure, convenient to use, facilitate promotion and application.

Description

Waterproof special combination screw

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of fasteners, in particular to a waterproof special combined screw.

[ background of the utility model ]

The fastener is a mechanical part which is used for fastening connection and has wide application, the fastener has wide application industry, including the industries of energy, electronics, electrical appliances, machinery, chemical engineering, metallurgy, molds, hydraulic pressure and the like, the screw is a common fastener and is widely used on machinery, electrical appliances and buildings, the common material is metal or plastic, the screw is cylindrical, grooves with concave and convex surfaces engraved on the surface are called threads, the waterproof effect of the existing screw is not good enough, water outside the connected piece is easy to permeate into the connected piece from the screw hole where the screw is located, the connected piece is corroded or rusted, on the other hand, liquid inside the connected piece can also permeate out from the screw hole, leakage is caused, and liquid waste or potential safety hazard is caused.

[ Utility model ] content

The utility model aims to solve the problems in the prior art and provides a special waterproof combined screw.

In order to achieve the purpose, the utility model provides a special waterproof combined screw, which comprises a screw head, a screw rod, a mounting groove, a sealing sleeve, a first cavity, a cushion block, a second cavity, a first mounting hole, a second mounting hole, a connecting hole, an air inlet nozzle, an air outlet nozzle, a sinking groove, a sealing ring, a groove, a bottom plate and a spring, wherein the screw rod is fixedly arranged at the bottom of the screw head, the annular mounting groove is formed in the side part of the screw rod, the annular sealing sleeve is arranged on the inner side of the mounting groove, the inner side wall of the sealing sleeve is fixedly connected with the mounting groove in a sealing manner, the annular first cavity is formed in the sealing sleeve, the annular cushion block is sleeved on the outer side of the screw rod, the annular second cavity is formed in the cushion block, the first mounting hole transversely penetrating through the screw rod is formed in the inner side wall of the mounting groove, and the two air inlet nozzles communicated with the first cavity are fixedly arranged on the inner side wall of the sealing sleeve, the air inlet nozzle is communicated with the end part of the first mounting hole, the side part of the nail rod, which is positioned at the inner side of the cushion block, is provided with a second mounting hole which transversely penetrates through the nail rod, two exhaust nozzles communicated with the second cavity are fixedly arranged on the inner side wall of the cushion block and communicated with the end part of the second mounting hole, a connecting hole is arranged inside the nail rod, the upper end of the connecting hole is communicated with the second mounting hole, the lower end of the connecting hole is communicated with the first mounting hole, the bottom of the nail head is positioned at the periphery of the cushion block and is provided with an annular sinking groove, the notch of the sinking groove is provided with an annular sealing ring, the upper end of the sealing ring is fixedly connected with the sinking groove in a sealing way, the upper end of the sealing ring is provided with an annular groove, the bottom of the groove is fixedly provided with an annular bottom plate, the upper portion of bottom plate is fixed and is equipped with a plurality of evenly distributed's spring, the upper end of spring and the tank bottom fixed connection of heavy groove.

Preferably, the sealing sleeve and the air inlet nozzle are both made of soft rubber materials.

Preferably, the cushion block and the exhaust nozzle are both made of soft rubber materials.

Preferably, the outer side wall of the sealing sleeve is provided with threads.

The utility model has the beneficial effects that: the utility model is characterized in that an annular mounting groove is arranged at the side part of a nail rod, an annular sealing sleeve is arranged at the inner side of the mounting groove, the inner side wall of the sealing sleeve is fixedly connected with the mounting groove in a sealing way, an annular first cavity is arranged inside the sealing sleeve, an annular cushion block is sleeved outside the nail rod, an annular second cavity is arranged inside the cushion block, a first mounting hole transversely penetrating the nail rod is arranged at the inner side wall of the mounting groove, two air inlet nozzles communicated with the first cavity are fixedly arranged at the inner side wall of the sealing sleeve, the air inlet nozzles are communicated with the end part of the first mounting hole, a second mounting hole transversely penetrating the nail rod is arranged at the inner side of the cushion block at the side part of the nail rod, two air exhaust nozzles communicated with the second cavity are fixedly arranged at the inner side wall of the cushion block, the air exhaust nozzles are communicated with the end part of the second mounting hole, and a connecting hole is arranged inside the nail rod, the upper end of the connecting hole is communicated with the second mounting hole, the lower end of the connecting hole is communicated with the first mounting hole, the bottom of the nail head is positioned at the periphery of the cushion block and is provided with an annular sinking groove, the notch of the sinking groove is provided with an annular sealing ring, the upper end of the sealing ring is fixedly connected with the sinking groove in a sealing manner, the upper end of the sealing ring is provided with an annular groove, the bottom of the groove is fixedly provided with an annular bottom plate, the upper part of the bottom plate is fixedly provided with a plurality of uniformly distributed springs, the upper ends of the springs are fixedly connected with the bottom of the sinking groove, when the screw is screwed into the screw hole, the nail head can gradually approach the surface of an object, when the sealing ring and the cushion block are contacted with the surface of the object, the object can extrude the sealing ring and the cushion block to deform the sealing ring and the cushion block, and after the cushion block deforms under pressure, air in the second cavity enters the second mounting hole through the exhaust nozzle, then enters a first mounting hole through a connecting hole, finally enters a first cavity inside the sealing sleeve through an air inlet nozzle, so that the sealing sleeve expands in the mounting groove, the outer side wall of the sealing sleeve is tightly attached to the inner wall of the screw hole, the outer side wall of the sealing sleeve is provided with threads, the threads of the outer side wall of the sealing sleeve are matched with the threads of the screw hole, the sealing sleeve can be more tightly connected with the inner wall of the screw hole, the waterproof effect is improved, meanwhile, the upper end of a flattened cushion block is tightly attached to the bottom of the nail head, the lower end of the cushion block is tightly attached to the surface of an object, the waterproof effect of the screw is further improved, the spring is shortened after the sealing ring is compressed, the bottom of the sealing ring is tightly attached to the surface of the object, the waterproof effect is improved, the spring can always give vertical elasticity to the sealing ring, even if the sealing ring is aged, the elasticity of the sealing ring is weakened, and the elasticity of the sealing ring can also be tightly attached to the object, the waterproof effect is improved. Compared with the prior art, can show the waterproof performance who promotes the screw, effectively prevent water from the seepage of screw department, promoted screw practicality and security, simple structure, convenient to use, facilitate promotion is used.

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

[ description of the drawings ]

Fig. 1 is a structural section view of a special waterproof combination screw of the utility model.

In the figure: 1-nail head, 2-nail rod, 3-mounting groove, 4-sealing sleeve, 5-first cavity, 6-cushion block, 7-second cavity, 8-first mounting hole, 9-second mounting hole, 10-connecting hole, 11-air inlet nozzle, 12-air outlet nozzle, 13-sink groove, 14-sealing ring, 15-groove, 16-bottom plate and 17-spring.

[ detailed description ] embodiments

Referring to fig. 1, the waterproof special combination screw of the utility model comprises a nail head 1, a nail rod 2, a mounting groove 3, a seal sleeve 4, a first cavity 5, a cushion block 6, a second cavity 7, a first mounting hole 8, a second mounting hole 9, a connecting hole 10, an air inlet nozzle 11, an air outlet nozzle 12, a sink groove 13, a seal ring 14, a groove 15, a bottom plate 16 and a spring 17, wherein the nail rod 2 is fixedly arranged at the bottom of the nail head 1, the annular mounting groove 3 is arranged at the side part of the nail rod 2, the annular seal sleeve 4 is arranged at the inner side of the mounting groove 3, the inner side wall of the seal sleeve 4 is fixedly connected with the mounting groove 3 in a sealing manner, the annular first cavity 5 is arranged inside the seal sleeve 4, the annular cushion block 6 is sleeved outside the nail rod 2, the annular second cavity 7 is arranged inside the cushion block 6, the first mounting hole 8 transversely penetrating through the nail rod 2 is arranged at the inner side wall of the mounting groove 3, the inner side wall of the sealing sleeve 4 is fixedly provided with two air inlet nozzles 11 communicated with the first cavity 5, the air inlet nozzles 11 are communicated with the end part of a first mounting hole 8, the side part of the nail rod 2 is positioned at the inner side of a cushion block 6 and is provided with a second mounting hole 9 transversely penetrating through the nail rod 2, the inner side wall of the cushion block 6 is fixedly provided with two air exhaust nozzles 12 communicated with a second cavity 7, the air exhaust nozzles 12 are communicated with the end part of the second mounting hole 9, the inside of the nail rod 2 is provided with a connecting hole 10, the upper end of the connecting hole 10 is communicated with the second mounting hole 9, the lower end of the connecting hole 10 is communicated with the first mounting hole 8, the bottom of the nail head 1 is positioned at the periphery of the cushion block 6 and is provided with an annular sunken groove 13, the notch of the sunken groove 13 is provided with an annular sealing ring 14, the upper end of the sealing ring 14 is fixedly connected with the sunken groove 13 in a sealing way, and the upper end of the sealing ring 14 is provided with an annular groove 15, the bottom of groove 15 is fixed and is equipped with annular bottom plate 16, the fixed spring 17 that is equipped with a plurality of evenly distributed in upper portion of bottom plate 16, the upper end of spring 17 and the tank bottom fixed connection of heavy groove 13, seal cover 4 and admission nozzle 11 are made by soft rubber materials, cushion 6 and exhaust nozzle 12 are made by soft rubber materials, the lateral wall of seal cover 4 is equipped with the screw thread.

The working process of the utility model is as follows: the screw is installed into the screw hole by using a screwdriver, when the screw is screwed into the screw hole, the nail head 1 is gradually close to the surface of an object, when the sealing ring 14 and the cushion block 6 are contacted with the surface of the object, the object can extrude the sealing ring 14 and the cushion block 6, so that the sealing ring 14 and the cushion block 6 are extruded to be shriveled, the cushion block 6 is pressed to deform, so that air in the second cavity 7 enters the second mounting hole 8 through the exhaust nozzle 12, then enters the first mounting hole 9 through the connecting hole 10, finally enters the first cavity 5 in the sealing sleeve 4 through the air inlet nozzle 11, so that the sealing sleeve 4 is expanded in the mounting groove 3, the outer side wall of the sealing sleeve 4 is tightly attached to the inner wall of the screw hole, because the outer side wall of the sealing sleeve 4 is provided with threads, the threads of the sealing sleeve 4 are matched with the threads of the screw hole, the sealing sleeve 4 can be more tightly connected with the inner wall of the screw hole, and the waterproof effect is improved, simultaneously by the inseparable laminating in the upper end of squashed cushion 6 and the bottom of pin fin 1, the lower extreme and the object surface of cushion 6 closely laminate, further promote the water-proof effects of screw, make spring 17 the pressurized shorten after sealing washer 14 is pressurized, the bottom and the object surface of sealing washer 14 closely laminate, the water-proof effects has been promoted, spring 17 can give 14 vertical elasticity of sealing washer all the time, even sealing washer 14 is ageing its self elasticity weakens, spring 17's elasticity also can let sealing washer 14 closely laminate with the object, the water-proof effects has been promoted. Compared with the prior art, can show the waterproof performance who promotes the screw, effectively prevent water from the seepage of screw department, promoted screw practicality and security, simple structure, convenient to use, facilitate promotion is used.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a waterproof special combination screw which characterized in that: comprises a nail head (1), a nail rod (2), a mounting groove (3), a sealing sleeve (4), a first cavity (5), a cushion block (6), a second cavity (7), a first mounting hole (8), a second mounting hole (9), a connecting hole (10), an air inlet nozzle (11), an air exhaust nozzle (12), a sink groove (13), a sealing ring (14), a groove (15), a bottom plate (16) and a spring (17), wherein the nail rod (2) is fixedly arranged at the bottom of the nail head (1), the annular mounting groove (3) is formed in the side part of the nail rod (2), the annular sealing sleeve (4) is arranged on the inner side of the mounting groove (3), the inner side wall of the sealing sleeve (4) is fixedly connected with the mounting groove (3) in a sealing way, the annular first cavity (5) is formed in the sealing sleeve (4), and the annular cushion block (6) is sleeved on the outer side of the nail rod (2), an annular second cavity (7) is formed in the cushion block (6), a first mounting hole (8) transversely penetrating through the nail rod (2) is formed in the inner side wall of the mounting groove (3), two air inlet nozzles (11) communicated with the first cavity (5) are fixedly arranged on the inner side wall of the sealing sleeve (4), the end portions of the air inlet nozzles (11) and the first mounting hole (8) are communicated, the side portion of the nail rod (2) is located on the inner side of the cushion block (6) and provided with a second mounting hole (9) transversely penetrating through the nail rod (2), two air exhaust nozzles (12) communicated with the second cavity (7) are fixedly arranged on the inner side wall of the cushion block (6), the air exhaust nozzles (12) are communicated with the end portions of the second mounting hole (9), a connecting hole (10) is formed in the nail rod (2), and the upper end of the connecting hole (10) is communicated with the second mounting hole (9), the lower extreme and the first mounting hole (8) of connecting hole (10) are linked together, annular heavy groove (13) have been seted up to the periphery that the bottom of pin fin (1) is located cushion (6), the notch of heavy groove (13) is equipped with annular sealing washer (14), the upper end and the sealed fixed connection in heavy groove (13) of sealing washer (14), annular recess (15) have been seted up to the upper end of sealing washer (14), the tank bottom of recess (15) is fixed and is equipped with annular bottom plate (16), the fixed spring (17) that are equipped with a plurality of evenly distributed in upper portion of bottom plate (16), the upper end of spring (17) and the tank bottom fixed connection in heavy groove (13).

2. The special waterproof combination screw of claim 1, wherein: the sealing sleeve (4) and the air inlet nozzle (11) are both made of soft rubber materials.

3. The special waterproof combination screw of claim 1, wherein: the cushion block (6) and the exhaust nozzle (12) are both made of soft rubber materials.

4. A waterproof combination screw as claimed in any one of claims 1 to 3, wherein: the outer side wall of the sealing sleeve (4) is provided with threads.