CN204828186U

CN204828186U - Novel heavy gecko

Info

Publication number: CN204828186U
Application number: CN201520526850.5U
Authority: CN
Inventors: 蔡跃新; 宋伯青; 叶银波
Original assignee: NINGBO YONGCHENG HARDWARE MACHINERY Co Ltd
Current assignee: NINGBO YONGCHENG HARDWARE MACHINERY Co Ltd
Priority date: 2015-07-18
Filing date: 2015-07-18
Publication date: 2015-12-02
Anticipated expiration: 2025-07-18

Abstract

The utility model discloses a novel heavy gecko, the tool comprises a scre, the plain washer, expansion pipe and inflation head, heavy gecko still includes the sleeve pipe, buffer tube and dustproof pipe, dustproof pipe, the inflation head, the expansion pipe, the buffer tube, sleeve pipe and plain washer are arranged the cover in proper order and are located on the screw rod, head and dustproof guan junyu screw rod threaded connection wherein expand, the head of screw rod is located to dustproof pipe, the one end of dustproof pipe is equipped with the tapering, the buffer tube is hourglass shape, and the both ends centering mask of buffer tube has the tapering, the buffer tube is made by anti compression moulding material, the sleeve pipe at first reduces the length of expansion pipe and avoids the expansion pipe overlength to ftracture easily, the extrusion of avoiding expansion pipe directness and two rigidity faces of sleeve pipe is made to the buffer tube by anti compression moulding material, next inflation degree that improves the expansion pipe, and avoid dust and sand to prevent the inflation head card phenomenon of dying on entering into inflation head and screw flight face at the dustproof pipe of the head setting of screw rod, next installation of being convenient for, avoid the wearing and tearing of inflation head, the service life of the fastening effect with is prolonged.

Description

A kind of novel heavy duty gecko

Technical field

The utility model relates to fastener areas, and more particularly, it relates to a kind of novel heavy duty gecko.

Background technique

The heavy gecko of one of existing use, it comprises screw rod, expansion tube, pad, spring washer and nut, the front portion of screw rod has the outside thread matched with nut, rear end has expansion-head, the rear end of expansion tube is evenly equipped with some along its axially extended opening slot, screw rod is set in expansion tube actively and the front end of screw rod and expansion-head are stretched out from the two ends of expansion tube respectively, expansion-head and opening slot are positioned at the same side, pad, spring washer and nut are by the front end being set in screw rod before backward successively, rotating nut makes screw rod stretch out to nut direction, expansion-head extrusion expansion cover makes expansion sleeve open, increase the friction with mounting hole.

But above-mentioned heavy gecko has following shortcoming:

1, heavy gecko can only single use, cannot take out screw rod;

2, get rusty easily outside because screw rod is exposed, and affect attractive in appearance, also easily cause the harm such as scuffing;

3, because whole heavy gecko is placed in mounting hole, in the traveling process of expansion-head rising extrusion expansion cover, in mounting hole will inevitably there are sand and dust or other impurity can enter into expansion-head and screw flight place, the screw thread force of sliding friction of expansion-head on screw rod can be caused to increase when making rotating screw bolt comparatively hard, when the sand and dust in expansion-head or impurity too much time cause expansion-head stuck and expansion tube cannot be squeezed in the rotating screw bolt expansion-head that rises, reduce the fastening effect of heavy gecko;

4, when expansion-head and expansion tube extrude mutually, expansion tube also will inevitably and plain washer between extrude mutually, due to expansion tube and the general equal metal of plain washer, two rigid faces extrude mutually and easily cause extrusion abrasion, particularly for bottom surface and plain washer extrusion abrasion expansion tube, opposite side struts again and easily makes whole expansion tube burst under the extruding of expansion-head, affects fastening effect while destroying link.

Model utility content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of novel heavy duty gecko to be convenient to reuse and to economize on resources, reduce the extrusion abrasion of expansion tube, while the stuck phenomenon avoiding expansion-head and screw rod, improve the working life of expansion-head.

For achieving the above object, the utility model provides following technological scheme: a kind of novel heavy duty gecko, comprise screw rod, plain washer, expansion tube and expansion-head, it is characterized in that, described heavy gecko also comprises sleeve pipe, separator tube and Dustproof pipe, described Dustproof pipe, expansion-head, expansion tube, separator tube, sleeve pipe and plain washer are arranged in order and are sheathed on screw rod, wherein expansion-head is all connected with screw flight with Dustproof pipe, Dustproof pipe is located at the head of screw rod, one end of described Dustproof pipe is provided with tapering, described separator tube is hourglass shape, and the two ends of separator tube have tapering to median plane, described separator tube is made up of pressure-resistant plastic.

By adopting technique scheme, add the length that first a sleeve pipe reduce expansion tube and avoid the long easy cracking of expansion tube, a separator tube is provided with between expansion tube and sleeve pipe, separator tube is made up of pressure-resistant plastic, separator tube extrudes mutually with expansion tube and sleeve pipe respectively, the two ends of separator tube have tapering to median plane, therefore the extruding of separator tube between expansion tube and sleeve pipe has compression surplus, first avoid expansion tube directly and the extruding of sleeve pipe two rigid face, secondly separator tube has the degrees of expansion that compression surplus improves expansion tube, and first avoid sand and dust to enter on expansion-head and screw flight face at the Dustproof pipe that the head of screw rod is arranged preventing expansion-head stuck phenomenon, one end of next Dustproof pipe is provided with tapering equally and is convenient to when being inserted into mounting hole install, avoid expansion-head in the wearing and tearing of installation process, improve fastening effect and working life.

As preferably, the two ends of described separator tube have the tapering of 2 ~ 3 ° to median plane.

By technique scheme, the tapering of 2 ~ 3 ° arranges the intensity both having ensured separator tube, can not be compressed easily again.

As preferably, the circumferential side wall of described Dustproof pipe is provided with the non-slipping block of some circumference array.

By technique scheme, non-slipping block is convenient to the installation and removal of Dustproof pipe, provides frictional force.

As preferably, described Dustproof pipe is made up of PVC material.

By technique scheme, the Dustproof pipe be made up of PVC material first low cost of manufacture, the performances such as next is corrosion-resistant, wear-resistant, intensity is large.

As preferably, described expansion sleeve comprises three intumescent sheets, and the surface of described intumescent sheet is provided with abutting block.

By technique scheme, abut block and provide the initial frictional with mounting hole for expansion tube, increase the circumference friction of expansion tube.

As preferably, offer the first wire casing between described adjacent two intumescent sheets, wherein have between two panels intumescent sheet and offer the second wire casing, described second wire casing is communicated with the first wire casing, and the width of the second wire casing is less than the width of the first wire casing.

By technique scheme, the first wire casing is that opening of intumescent sheet is arranged, and the second wire casing is mainly convenient to the installation of expansion tube, is applicable to special occasions from the second wire casing and the first wire casing fast ening bolt closed.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of novel heavy duty gecko of the utility model embodiment;

Fig. 2 is the exploded perspective view of a kind of novel heavy duty gecko of the utility model embodiment;

Fig. 3 is the structural representation of the Dustproof pipe of a kind of novel heavy duty gecko of the utility model embodiment;

Fig. 4 is the structural representation of the expansion tube of a kind of novel heavy duty gecko of the utility model embodiment;

Fig. 5 is the structural representation of the separator tube of a kind of novel heavy duty gecko of the utility model embodiment;

Fig. 6 is the front view of the separator tube of a kind of novel heavy duty gecko of the utility model embodiment.

Accompanying drawing illustrates: 10, heavy gecko; 20, Dustproof pipe; 21, tapped hole; 22, non-slipping block; 23, compressive plane; 30, expansion-head; 40, expansion tube; 41, intumescent sheet; 42, block is abutted; 43, the first wire casing; 44, the second wire casing; 50, separator tube; 51, buffering suface; 60, sleeve pipe; 70, plain washer; 80, screw rod.

Embodiment

With reference to accompanying drawing, a kind of novel heavy duty gecko of the utility model embodiment is described further.

Fig. 1 and Fig. 2 illustrates that heavy gecko 10 comprises Dustproof pipe 20, expansion-head 30, expansion tube 40, separator tube 50, sleeve pipe 60, plain washer 70 and screw rod 80, Dustproof pipe 20, expansion-head 30, expansion tube 40, separator tube 50, sleeve pipe 60 and plain washer 70 are arranged in order and are set on screw rod 80, wherein Dustproof pipe 20 and expansion-head 30 are all threadedly connected on screw rod 80, Dustproof pipe 20 after assembling is located at the head of screw rod 80, expansion-head 30 and expansion tube 40 cooperatively interact, the setting of pipe box 50 first as extension pipe to arrange expansion tube 40 very long without the need to making, next improves support strength.

See Fig. 3, Dustproof pipe 20 offers tapped hole 21 and is threaded mutually with the screw thread of screw rod 80, tapering is provided with in one end of Dustproof pipe 20, this one end that certain Dustproof pipe 20 is provided with tapering is deviate from the one end contacted with expansion-head 30, the circumferential side wall of Dustproof pipe 20 is provided with the non-slipping block 22 of some circumference array, be convenient to the installation and removal of Dustproof pipe 20, be compressive plane 23 at the end face being provided with tapering, wearing layer can be set at compressive plane 23 and improve rub proofness, whole Dustproof pipe 20 is made up of the material of PVC, due to Dustproof pipe 20 install heavy gecko 10 after be in for a long time in mounting hole, must corrosion protection, secondly may there is mounting hole aperture less needs is when mounted driven in mounting hole by hammer by heavy gecko 10, and Dustproof pipe 20 must some strength and certain wear resistance as the part contacted with mounting hole at first, and the Dustproof pipe 20 that PVC material is made has good wear resistance and intensity, be suitable for special occasion, secondly Dustproof pipe 20 mainly can avoid sand and dust or other impurity in installation process or fastener cycle to enter into expansion-head 30 with on screw rod 80 phase flank of thread, prevent expansion-head 30 from entering into expansion-head 30 and stuck because of sand and dust or impurity.

Fig. 4 illustrates that expansion tube 40 comprises three intumescent sheets 41, the first wire casing 43 is offered between adjacent two intumescent sheets 41, wherein have between two panels expansion tube 41 and be provided with the second wire casing 44, the width of the second wire casing 44 is less than the width of the first wire casing 43, and the second wire casing 44 is communicated with the first wire casing 43, and the explosion of expansion tube 40 is avoided in the setting of the second wire casing 44, reduce stress to concentrate, next is convenient to the installation of expansion tube 40, the surface of every sheet intumescent sheet 41 is equipped with and abuts block 42, abut the frictional force providing expansion tube 40 initial when block 42 provides heavy gecko 10 to be inserted in mounting hole, increase frictional force when expansion tube 40 rotates furtherly.

Composition graphs 5 and Fig. 6, separator tube 50 is in hourglass shape, the two ends of separator tube 50 are provided with tapering to median plane, this tapering is 2 ~ 3 °, can ensure that the intensity of separator tube 50 can also provide compression surplus, and separator tube 50 is made up of pressure-resistant plastic, pressure-resistant plastic is mainly POM plastic, the both ends of the surface of separator tube 50 are set to buffering suface 51, buffering suface 51 can arrange buffer layer, buffer layer is preferably sponge or plastic foam, and the setting of separator tube 50 decreases the extrusion abrasion of expansion tube 40, improves the usability of expansion tube 40.

The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a novel heavy duty gecko, comprise screw rod, plain washer, expansion tube and expansion-head, it is characterized in that, described heavy gecko also comprises sleeve pipe, separator tube and Dustproof pipe, described Dustproof pipe, expansion-head, expansion tube, separator tube, sleeve pipe and plain washer are arranged in order and are sheathed on screw rod, wherein expansion-head is all connected with screw flight with Dustproof pipe, Dustproof pipe is located at the head of screw rod, one end of described Dustproof pipe is provided with tapering, described separator tube is hourglass shape, and the two ends of separator tube have tapering to median plane, described separator tube is made up of pressure-resistant plastic.

2. a kind of novel heavy duty gecko according to claim 1, is characterized in that, the two ends of described separator tube have the tapering of 2 ~ 3 ° to median plane.

3. a kind of novel heavy duty gecko according to claim 1, is characterized in that, the circumferential side wall of described Dustproof pipe is provided with the non-slipping block of some circumference array.

4. a kind of novel heavy duty gecko according to claim 1 or 3, it is characterized in that, described Dustproof pipe is made up of PVC material.

5. a kind of novel heavy duty gecko according to claim 1, is characterized in that, described expansion sleeve comprises three intumescent sheets, and the surface of described intumescent sheet is provided with abutting block.

6. a kind of novel heavy duty gecko according to claim 5, it is characterized in that, the first wire casing is offered between described adjacent two intumescent sheets, wherein have between two panels intumescent sheet and offer the second wire casing, described second wire casing is communicated with the first wire casing, and the width of the second wire casing is less than the width of the first wire casing.