CN210106356U

CN210106356U - Machine cabinet screw with pre-clamping function

Info

Publication number: CN210106356U
Application number: CN201920539582.9U
Authority: CN
Inventors: 彭元晖
Original assignee: Ningbo Dan-Chief Network Technologies Co Ltd
Current assignee: Ningbo Dan-Chief Network Technologies Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-02-21
Anticipated expiration: 2029-04-19

Abstract

The cabinet screw with the pre-clamping function comprises a screw head and a screw rod, wherein the screw rod is divided into a threaded section and a pre-clamping section, threads are arranged on the outer surface of the threaded section and used for being screwed in a nut, and the diameter of the section of the pre-clamping section is smaller than or equal to the diameter of a screw hole cavity on the nut, so that the pre-clamping section can be conveniently inserted into the screw hole on the nut; the pre-clamping section is positioned at one end, far away from the screw head, of the screw rod. On the rack screw among the prior art, the lead screw is last all to be the screw thread basically, therefore the screw can not block in the nut in advance, need one hand to hold screw and distribution frame during the assembly, and another hand operating tool screws up the operation, very loaded down with trivial details and inefficiency. In this application, be provided with the section of blocking in advance at the lead screw, can directly insert the nut in advance, fix in advance screw and distribution frame earlier, need not hold the hand, then twist the screw operation again, convenient and efficient.

Description

Machine cabinet screw with pre-clamping function

Technical Field

The utility model belongs to network rack assembly field, concretely relates to rack screw with block function in advance.

Background

In daily life and work, computers are very commonly used, and when the computers are connected to a network to surf the internet, devices such as a network cable and a router need to be used. Network cabinets, switches and the like are large cabinets for equipment placement and line connection, and distribution frames are required to be installed on the cabinets for plugging of network cable ends.

At present, the distribution frame passes through the screw and screws and installs on the rack, and in the installation, need fix with the hand after distribution frame and rack nut hole alignment earlier, then the screw is gone up to the one hand again, and is very inconvenient during single-man operation, inefficiency. This kind of mounting has been the same for a long time, and is determined by the mounting position structure on the rack on the one hand, and also by the screw nut mounting piece that uses commonly at present on the other hand, is the common situation in the trade.

Based on above some problems that exist for a long time, this application hopes to improve the screw nut who uses in the assembly of traditional rack, improves the installation effectiveness, increases the installation convenience, and this application has studied in this direction.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a cabinet screw with pre-clamping function, which has simple structure and convenient assembly; the screw can be blocked in advance to the nut in the assembling process, with the distribution frame advance card on the rack, can singlely carry out the screw operation of screwing with one hand after the list, efficient.

In order to solve the above technical problem, the present invention solves the above technical problems.

A cabinet screw with a pre-clamping function comprises a screw head and a screw rod, wherein the screw rod is divided into a threaded section and a pre-clamping section, threads are arranged on the outer surface of the threaded section and used for being screwed in a nut, and the diameter of the section of the pre-clamping section is smaller than or equal to the diameter of a screw hole cavity on the nut, so that the pre-clamping section can be conveniently inserted into the screw hole on the nut; the pre-clamping section is positioned at one end, far away from the screw head, of the screw rod.

On the rack screw among the prior art, all be full screw on the turnbuckle basically, therefore the screw can not block in the nut in advance, need one hand to hold screw and distribution frame during the assembly, and the screw operation is twisted to another hand operating tool, very loaded down with trivial details and inefficiency. In this application, be provided with the section of blocking in advance at the lead screw, can directly insert the nut in advance, fix in advance screw and distribution frame earlier, need not hold the hand, then twist the screw operation again, convenient and efficient.

In a preferable scheme, the outer end of the pre-clamping section is provided with a narrowing section which is convenient to guide and insert into a screw hole on the nut.

In a preferred embodiment, the length ratio of the threaded section to the pre-clamping section is 1: 2-2: 1, under this proportion, stability when blocking in advance is good, and the distribution frame can not drop, and the screw thread is screwed up fixed effectual simultaneously, and the assembly back is stable.

In a preferred scheme, the outer surface of the pre-clamping section is a smooth surface, so that the pre-clamping section can be conveniently inserted into a screw hole in the nut.

In a preferred embodiment, the ratio of the thread projection width to the distance between threads on the thread segments is 1: 1.3-1: 1.8. in the traditional screw, the ratio is generally 1:1, the screw can be screwed only by screwing a plurality of turns, the time is long, the thread on the thread section is a long-distance thread according to the ratio, correspondingly, the screw can be screwed only by screwing a small number of turns under the condition that the length of a screw rod is not changed, and the assembly time is saved.

In a preferred scheme, the number of turns of the thread on the thread section is 5-7, and the screw can be screwed only by screwing a small number of turns, so that the assembling time is saved.

In a preferred embodiment, the ratio of the thread projection width to the distance between threads on the thread segments is 1: 1.3-1: 1.8, the threads on the thread section are long-distance threads, so that the assembling time is saved.

Compared with the prior art, the utility model discloses following beneficial effect has: the cabinet screw with the pre-clamping function is provided, the pre-clamping section is arranged, the pre-clamping section can be clamped into the nut in advance during assembly, the distribution frame is pre-clamped on the cabinet, then the screw screwing operation can be performed by one hand, and the efficiency is high; meanwhile, the screw pitch is increased, namely the actual number of required tightening turns is small, and the assembly speed is high; the whole structure is simple, and the assembly is convenient.

Drawings

Fig. 1 is a first perspective view of a screw according to the present invention.

Fig. 2 is a second perspective view of the screw according to the present invention.

Fig. 3 is a front view of the screw of the present invention.

Fig. 4 is a front view of a nut according to the present invention.

Fig. 5 is a perspective view of the nut according to the present invention.

Fig. 6 is an internal structure view of the nut according to the present invention.

Fig. 7 is a perspective view of the screw and nut of the present invention after assembly.

Fig. 8 is a front view of the screw and nut of the present invention after assembly.

Fig. 9 is a first perspective view of the distribution frame according to the present invention in an assembled state.

Fig. 10 is a second perspective view of the assembled state of the distribution frame according to the present invention.

Fig. 11 is an enlarged view of the area a in fig. 10.

Fig. 12 is a plan view of a state where the distribution frame according to the present invention is assembled.

Fig. 13 is an enlarged view of the region B in fig. 12.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not construed as limiting the present invention, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it is to be understood that the term: the center, vertically, transversely, length, width, thickness, upper and lower, preceding, back, left and right, vertical, level, top, end, inside and outside, clockwise, anticlockwise etc. indicate position or positional relationship for based on the position or positional relationship that the drawing shows, just for the convenience of description the utility model discloses and simplified description, consequently can not be understood as the restriction of the utility model. Furthermore, the terms: first, second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present invention, unless explicitly stated or limited otherwise, the terms: mounting, connecting, etc. should be understood broadly, and those skilled in the art will understand the specific meaning of the terms in this application as they pertain to the particular situation.

Referring to fig. 1 to 13, a cabinet screw 1 with a pre-clamping function according to the present invention includes a screw head 11 and a screw rod, the screw rod is divided into a screw thread section 12 and a pre-clamping section 13, a screw thread is provided on an outer surface of the screw thread section 12 for screwing in a nut 4, a cross-sectional diameter of the pre-clamping section 13 is smaller than or equal to a cavity diameter of a screw hole 41 on the nut 4, and an outer surface of the pre-clamping section 13 is a smooth surface, so as to be conveniently inserted into a screw hole 31 on the nut 4; the pre-clamping section 13 is located at an end of the lead screw away from the screw head 11. In addition, in the present application, the outer end of the pre-clamping section 13 is provided with a narrowing section 131, which facilitates guiding and inserting into the screw hole 41 on the nut 4.

In this embodiment, the length ratio of the threaded section to the pre-clamping section is 1: 2-2: 1, preferably 1:1, and the proportion is that the stability in pre-clamping is good, the distribution frame 9 can not fall off, and meanwhile, the screw tightening fixing effect is good, and the stability is good after assembly. Meanwhile, in the present application, the ratio of the thread protrusion width a on the thread section 12 to the distance b between the threads is 1: 1.3-1: 1.8, preferably 1: 1.5. In the traditional screw, the ratio is generally 1:1, the screw can be screwed only by screwing a plurality of turns, the time is long, the number of turns of the thread in the thread section is 5-7 in the application, and the screw can be screwed only by screwing a small number of turns under the condition that the length of the screw rod is not changed, so that the assembly time is saved.

On the rack screw among the prior art, the lead screw is last all to be the screw thread basically, therefore the screw can not block in the nut in advance, need one hand to hold screw and distribution frame during the assembly, and another hand operating tool screws up the operation, very loaded down with trivial details and inefficiency. In this application, be provided with the section of blocking in advance at the lead screw, can directly insert the nut in advance, fix in advance screw and distribution frame earlier, need not hold the hand, then twist the screw operation again, convenient and efficient.

The utility model provides a during the use of rack screw, the distribution frame 9 and the assembly strip 91 that will adorn rack screw 1 block in advance into rack nut end, and the cassette section 13 can hang distribution frame 9 on the rack nut in advance on the rack screw 1, can not fall, liberates both hands this moment, squeezes the screw into the nut easily, and is fixed with the rack. The screw in this application and ordinary screw are under the same condition of length, because the thread number is less than ordinary screw, so can save more time than ordinary screw when beating the screw.

As described above, the utility model provides a cabinet screw with pre-clamping function, through the setting of the pre-clamping section, the screw can be pre-clamped into the nut during assembly, the distribution frame is pre-clamped on the cabinet, and the screw screwing operation can be performed with one hand after one hand, so that the efficiency is high; meanwhile, the number of turns of a screw tightening ring is small, and the assembling speed is high; the whole structure is simple, and the assembly is convenient.

The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.

Claims

1. The cabinet screw with the pre-clamping function comprises a screw head and a screw rod, and is characterized in that the screw rod is divided into a threaded section and a pre-clamping section, threads are arranged on the outer surface of the threaded section and used for being screwed in a nut, and the diameter of the section of the pre-clamping section is smaller than or equal to the diameter of a screw hole cavity on the nut; the pre-clamping section is positioned at one end, far away from the screw head, of the screw rod.

2. The cabinet screw with pre-clamping function as claimed in claim 1, wherein the outer end of the pre-clamping section is provided with a narrowing section.

3. The cabinet screw with the pre-clamping function according to claim 1, wherein the length ratio of the threaded section to the pre-clamping section is 1: 2-2: 1.

4. the cabinet screw with pre-clamping function according to claim 1, wherein the outer surface of the pre-clamping section is a smooth surface.

5. The cabinet screw with the pre-clamping function according to any one of claims 1 to 4, wherein the ratio of the protruding width of the threads on the threaded section to the distance between the threads is 1: 1.3-1: 1.8.

6. the cabinet screw with the pre-clamping function according to any one of claims 1 to 4, wherein the number of threads on the thread section is 5-7.

7. The cabinet screw with the pre-clamping function according to claim 6, wherein the ratio of the thread projection width to the distance between threads on the thread section is 1: 1.3-1: 1.8.