CN206545640U - A kind of clamp screw - Google Patents

Abstract

The utility model discloses a kind of clamp screw; including screw element top and screw rod; it is connected at the top of screw element with screw rod; include head and protection portion at the top of screw element, protection portion is arranged on the upside on head, and protection portion is divided into stick portion and knob portion; knob portion is arranged on the center of stick portion; the bottom of knob portion is provided with buffer table, the bottom of screw rod is mobilizable to be connected with horizontal stand at the top of screw element with being connected at the top of screw element between screw rod.The utility model can effectively prevent screw element, and silk mouthful skids during turn-knob repeatedly, cause screw element can not carry out turn-knob, so as to which fastener can not depart from, it ensure that the holding level during screwing simultaneously, screw element is avoided just not cause screw stripped thread, extend the service life of screw element, it is ensured that the steadiness of whole screw element.

Description

A kind of clamp screw

Technical field

The utility model belongs to fastener areas, more particularly to a kind of clamp screw.

Background technology

Due to the limitation of state-of-the-art, processing technology, have one between the internal thread and external screw thread in bolt arrangement Fixed gap, the bolt for the workpiece that is spirally connected easily produces loosening, or even comes off, and this phenomenon is in the spiral shell that pitch is larger, screw thread is longer That is embodied with bolt is particularly evident.In this case, problem is typically mechanically solved using locking mechanism.But most spiral shell Bolt-lock locking structure all has some shortcomings, such as hydraulic locking nut, and complicated volume is larger, conventional springs gasket construction, Large diameter bolt application aspect manpower it is difficult and, bolt adds anti-rotation pin structure, and dismounting trouble can not be locked completely.

It is well known that in some large-scale, safe, accurate machineries, the connection between parts and components is generally needed It is attached with fastener such as screw bolt and nut, as the flange connection in hydrogenation reactor, threaded connector used is equal For the screw bolt and nut of special, major diameter alloy steel, in use, for the bolt head that prevents from assembling Thread damage, it is necessary to be equipped with the manhole in bolt protection case, particularly hydrogenation reactor in bolt head outside screw exposed portion The bolt of the Big Diameter Flanges such as flange connection is even more to install；Traditional, usual bolt protection case, is risen from nut Bolt head on, and to be threadedly coupled the protective case of a nut type, Ji appearance and sizes are big, and body weight, and cost is higher, is not easy to Demolition, installation during maintenance.

The content of the invention

To solve the above problems, the utility model discloses a kind of clamp screw, can effectively prevent screw element repeatedly Silk mouthful skids during turn-knob, causes screw element can not carry out turn-knob, so that fastener can not depart from, while ensure that Holding level during screwing, it is to avoid screw element is not just causing screw stripped thread, extends the service life of screw element, it is ensured that whole The steadiness of screw element.

In order to reach object above, the utility model provides following technical scheme：The utility model discloses one kind fastening It is connected at the top of screw element, including screw element top and screw rod, screw element with screw rod, head and protection portion is included at the top of screw element, Protection portion is arranged on the upside on head, and protection portion is divided into stick portion and knob portion, and knob portion is arranged on stick portion Center, the bottom of knob portion is provided with buffer table, the bottom of screw rod at the top of screw element with being connected at the top of screw element between screw rod Portion is mobilizable to be connected with horizontal stand.

As a kind of preferred scheme of the present utility model, the centre of the horizontal stand is provided with through hole, the hole of the through hole The diameter of section of footpath and screw rod matches.

As a kind of preferred scheme of the present utility model, the knob portion is made of hard material.

As a kind of preferred scheme of the present utility model, the buffer table is made of Flexible Connector.

As a kind of preferred scheme of the present utility model, the horizontal stand is mobilizable to be connected with buffer table.

As a kind of preferred scheme of the present utility model, knob groove is provided with the top of the screw element.

Compared with prior art, the beneficial effect that the utility model possesses：The utility model passes through the guarantor at the top of screw element Shield part is protected by screw element, it is to avoid because of the corrosion of prolonged material, cause corrosion not use, while on screw element Knob portion be covered on knob groove, it is ensured that the normal of screw element is used, while being additionally provided with horizontal stand, energy in screw position Enough to ensure that silk mouthful is relative during rotation, it is to avoid screw element causes stripped thread, the service life of effective extension device installs letter It is single easy to operate.

Brief description of the drawings

Fig. 1 is the structural representation of clamp screw.

Reference numerals list：1- screw elements top, 2- screw rods, 3- stick portions, 4- knob portions, 5- heads, 6- bufferings Platform, 7- horizontal stands.

Embodiment

With reference to the accompanying drawings and detailed description, the utility model is further elucidated, it should be understood that following specific embodiment parties Formula is merely to illustrate the utility model rather than limits scope of the present utility model.It should be noted that making below in description Word "front", "rear", "left", "right", "up" and "down" refer to the direction in accompanying drawing, and word " interior " and " outer " refer to respectively Be directed towards or the direction away from particular elements geometric centers.

A kind of clamp screw as shown in Figure 1, including screw element top 1 and screw rod 2, screw element top 1 and the phase of screw rod 2 Even, 1 include head 5 and protection portion at the top of screw element, protection portion is arranged on the upside on head 5, protection portion be divided into stick portion 3 with Knob portion 4, knob portion 4 is arranged on the center of stick portion 3, and knob portion 4 is made of hard material, knob portion 4 Bottom and screw element at the top of 1 be connected, buffer table 6 is provided with the top of screw element between 1 and screw rod 2, buffer table 6 is connected using elasticity Fitting is made, and the bottom of screw rod 2 is mobilizable to be connected with horizontal stand 7, and horizontal stand 7 is mobilizable to be connected with buffer table 6, horizontal stand 7 centre is provided with through hole, and the aperture of the through hole and the diameter of section of screw rod 2 match.

During using clamp screw, 1 stick portion 3 ensures protection portion and screw member head at the top of screw element 5 close adhesion, knob portion 4 can be closely coupled with knob groove, and 1 is provided with the junction of screw rod 2 at the top of screw element Buffer table 6, buffer table 6 is able to ensure that screw member head 5 is not connected directly with object, solves time of contact and long causes corrosion Phenomenon occur, while be connected with horizontal stand 7 in the bottom of screw rod 2, horizontal stand 7 ensure that screw element is protected during turn-knob Plumbness is held, screw thread stripped thread of the screw element caused by out of alignment between fastener and screw element is solved, substantially prolongs The service life of screw element, and simple to operate installed.

Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also Including being combined constituted technical scheme by above technical characteristic.It should be pointed out that for the ordinary skill of the art For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and moistened Decorations are also considered as protection domain of the present utility model.

Claims (6)

1. being connected at the top of a kind of clamp screw, including screw element top and screw rod, the screw element with screw rod, its feature exists In：Include head and protection portion at the top of the screw element, the protection portion is arranged on the upside on head, and the protection portion is divided into viscous Part and knob portion are closed, the knob portion is arranged on the center of stick portion, the bottom of the knob portion and screw element Top is connected, and is provided with buffer table between screw rod at the top of the screw element, the bottom of the screw rod is mobilizable to be connected with water Platform.

2. clamp screw according to claim 1, it is characterised in that：The centre of the horizontal stand is provided with through hole, institute State the aperture of through hole and the diameter of section of screw rod matches.

3. clamp screw according to claim 1, it is characterised in that：The knob portion is made of hard material.

4. clamp screw according to claim 1, it is characterised in that：The buffer table is made of Flexible Connector.

5. clamp screw according to claim 1, it is characterised in that：The horizontal stand is mobilizable with buffer table phase Even.

6. clamp screw according to claim 1, it is characterised in that：Knob groove is provided with the top of the screw element.