CN213176356U

CN213176356U - Expansion screw

Info

Publication number: CN213176356U
Application number: CN202021985018.9U
Authority: CN
Inventors: 吴伟琦
Original assignee: Shaoxing Lianyuan Metal Technology Co ltd
Current assignee: Shaoxing Lianyuan Metal Technology Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-05-11
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses an expansion screw, the screw body including one end fixedly connected with inflation head, the screw body outside cup jointed with expansion pipe fixed connection's sliding sleeve, the sliding sleeve has been cup jointed in the screw body outside, screw body other end fixedly connected with adjusts the frame, rotate between the table wall in the frame both sides of adjusting and install the pivot of passing the frame of adjusting, the eccentric wheel has been cup jointed in the pivot, the adjustment tank has been seted up to the frame both sides, both sides sliding connection has the clamp plate in the adjustment tank, can dismantle the connection through two guide arms between clamp plate and the sliding sleeve. The utility model discloses in, drive the eccentric wheel through rotating the pivot and rotate, promote clamp plate, guide arm and sliding sleeve and be close to the expansion pipe along screw body axis direction and remove, and then prop open to expansion head department through sliding sleeve extrusion expansion pipe, accomplish the fixed of screw body on the wall, compare in traditional expansion screw, avoided swivel nut's operation and use relevant appurtenance, convenient operation reduces the limitation.

Description

Expansion screw

Technical Field

The utility model relates to an expansion screw body technical field especially relates to an expansion screw.

Background

The expansion screw body is very common in the building field, often is used for installing articles such as various furred ceilings, street lamps, and its major structure is the screw body, and the outside expansion pipe of screw body is located to the cover to and revolve the nut on the screw body and constitute.

Screw body one end is equipped with the inflation head, through punching the back on the wall body, packs into the wall body with the inflation screw body, makes the nut drive the screw body through swivel nut and removes, and the screw body drives the inflation head when removing and struts the expansion pipe, makes the screw body firmly be fixed in on the wall body.

However, when the existing expansion screw is used, the screwing operation of the nut is indispensable, and an auxiliary tool, such as a wrench, is indispensable when the nut is screwed, the operation is troublesome and is limited by the tool, so that an expansion screw which is convenient to use is lacked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, an expansion screw is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an expansion screw, includes the screw body of one end fixedly connected with inflation head, the expansion pipe has been cup jointed in the screw body outside, the screw body outside cup jointed with expansion pipe fixed connection's sliding sleeve, screw body other end fixedly connected with adjustment frame, rotate between the table wall in the adjustment frame both sides and install the pivot of passing the adjustment frame, the eccentric wheel has been cup jointed in the pivot, the adjustment tank has been seted up to adjustment frame both sides, both sides sliding connection has the clamp plate in the adjustment tank, can dismantle the connection through two guide arms between clamp plate and the sliding sleeve.

As a further description of the above technical solution:

the outer side of the screw body is fixedly connected with a fixing ring, and the two guide rods penetrate through the fixing ring.

As a further description of the above technical solution:

one end of the adjusting frame is fixedly connected with a connecting stud which is connected with the screw body in a screwing mode through threads.

As a further description of the above technical solution:

and a spring is elastically connected between the pressure plate and the inner surface wall of the adjusting frame.

As a further description of the above technical solution:

the adjusting device is characterized in that the outer sides of the free ends of one side of the adjusting frame and the rotating shaft are fixedly connected with rectangular rods arranged in parallel, and limiting plates are sleeved on the outer sides of the rectangular rods.

As a further description of the above technical solution:

and a rubber layer is bonded on the inner surface wall of the through hole on the limit plate.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, drive the eccentric wheel through rotating the pivot and rotate, promote clamp plate, guide arm and sliding sleeve and be close to the expansion pipe along screw body axis direction and remove, and then extrude the expansion pipe through the sliding sleeve for in the expansion head was advanced the expansion pipe by reverse pulling, prop open the expansion pipe, accomplish the fixing of screw body on the wall, compare in traditional expansion screw, avoided the operation of swivel nut and used relevant appurtenance, convenient operation reduces the limitation.

2. The utility model discloses in, close soon through the screw thread between guide arm and the sliding sleeve and be connected, and close soon through the connecting stud screw thread between adjusting frame and the screw body and be connected to be convenient for adjust the dismantlement of frame, make adjusting frame and each subassembly of installing on it all can recycle, reduce use cost, resources are saved.

Drawings

Fig. 1 shows a schematic front view of an expansion screw according to an embodiment of the present invention;

fig. 2 shows a schematic partial cross-sectional view of an expansion screw according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating a connection between an adjusting frame and a screw body of an expansion screw according to an embodiment of the present invention;

fig. 4 shows a connection schematic diagram of the rectangular rod and the limiting plate of the expansion screw according to the embodiment of the present invention.

Illustration of the drawings:

1. a screw body; 2. an expansion tube; 3. a sliding sleeve; 4. a guide bar; 5. an adjusting frame; 51. an adjustment groove; 6. a spring; 7. a rectangular bar; 8. a limiting plate; 9. an eccentric wheel; 10. a rotating shaft; 11. pressing a plate; 12. a fixing ring; 13. connecting a stud; 14. a rubber layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an expansion screw comprises a screw body 1, one end of which is fixedly connected with an expansion head, an expansion tube 2 is sleeved outside the screw body 1, a sliding sleeve 3 fixedly connected with the expansion tube 2 is sleeved outside the screw body 1, the other end of the screw body 1 is fixedly connected with an adjusting frame 5, a rotating shaft 10 penetrating through the adjusting frame 5 is rotatably arranged between inner surface walls at two sides of the adjusting frame 5, an eccentric wheel 9 is sleeved on the rotating shaft 10, adjusting grooves 51 are formed at two sides of the adjusting frame 5, pressing plates 11 are slidably connected in the adjusting grooves 51 at two sides, the eccentric wheel 9 is driven to rotate through the rotating shaft 10, the position change of the pressing plates 11 on the axis of the screw body 1 is realized, the pressing plates 11 and the sliding sleeve 3 are detachably connected through two guide rods 4, the sliding sleeve 3 is further driven to extrude the expansion tube 2 to the expansion head to be propped, the screw body 1 is fixed, the structure is simple, the operation is convenient, wherein, is suitable for the replacement of the adjusting frame 5.

Specifically, as shown in fig. 1 and fig. 2, a fixing ring 12 is fixedly connected to the outer side of the screw body 1, and both the guide rods 4 penetrate through the fixing ring 12, so that the pressure plate 11 is ensured to move along the axial direction of the screw body 1 without deviation.

Specifically, as shown in fig. 3, one end of the adjusting frame 5 is fixedly connected with a connecting stud 13, the connecting stud 13 is screwed with the screw body 1 through a thread, so that the adjusting frame 5 can be conveniently detached, the adjusting frame 5 and all components mounted on the adjusting frame can be recycled, the use cost is reduced, and resources are saved.

Specifically, as shown in fig. 1 and fig. 2, a spring 6 is elastically connected between the pressing plate 11 and the inner surface wall of the adjusting frame 5, when the expansion screw fixes an object, the spring 6 is compressed to apply an outward pushing force to the pressing plate 11, and when the limiting plate 8 is removed, the sliding sleeve 3 can automatically reset under the action of the spring 6 to release the fixation of the object.

Specifically, as shown in fig. 1 and 2, the adjusting frame 5 and the free end of the rotating shaft 10 are fixedly connected with rectangular rods 7 arranged in parallel, and the limiting plates 8 are sleeved outside the two rectangular rods 7 to limit the rotation of the rotating shaft 10, so as to position the sliding sleeve 3.

Specifically, as shown in fig. 4, the rubber layer 14 is bonded to the inner surface wall of the through hole in the limiting plate 8, the rubber layer 14 has elasticity and is rough in surface, so that the limiting plate 8 and the rectangular rod 7 are in interference fit in a penetrating mode, the limiting plate 8 and the rectangular rod 7 are stably connected, the limiting plate 8 and the rectangular rod 7 are not prone to being separated from each other, and the limitation stability of the rotating shaft 10 is guaranteed.

The working principle is as follows: during the use, at first, close connecting stud 13 soon, make adjusting frame 5 and screw body 1 fixed connection, then, rotate pivot 10, it removes to drive eccentric wheel 9 and pressing clamp plate 11 to be close to expansion pipe 2 department, and then drive guide arm 4 and pressing sliding sleeve 3 extrusion expansion pipe 2, thereby reverse promotion inflation head gets into in the expansion pipe 2, expansion pipe 2 is propped open under the effect of inflation head, accomplish the fixed of screw body 1 on the wall body, the spiral of nut has been avoided closing, and appurtenance's use, moreover, the steam generator is simple in structure, and convenient for operation, the limitation is reduced, and finally, cup joint limiting plate 8 in two rectangular rod 7 outsides, the rotation of restriction pivot 10, location sliding sleeve 3, guarantee fixed connection's stability and firm nature.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an expansion screw, includes the screw body (1) of one end fixedly connected with inflation head, expansion pipe (2) have been cup jointed in the screw body (1) outside, its characterized in that, sliding sleeve (3) with expansion pipe (2) fixed connection have been cup jointed in the screw body (1) outside, screw body (1) other end fixedly connected with adjusting frame (5), rotate between the table wall in adjusting frame (5) both sides and install pivot (10) that pass adjusting frame (5), eccentric wheel (9) have been cup jointed on pivot (10), adjustment tank (51), both sides have been seted up to adjusting frame (5) both sides sliding connection has clamp plate (11) in adjustment tank (51), can dismantle the connection through two guide arms (4) between clamp plate (11) and sliding sleeve (3).

2. Expansion screw according to claim 1, characterized in that a fixing ring (12) is fixedly connected to the outside of the screw body (1), both guide rods (4) passing through the fixing ring (12).

3. The expansion screw according to claim 1, wherein a connecting stud (13) is fixedly connected to one end of the adjusting frame (5), and the connecting stud (13) is screwed with the screw body (1) through threads.

4. Expansion screw according to claim 1, characterized in that a spring (6) is elastically connected between the pressure plate (11) and the inner surface wall of the adjusting frame (5).

5. The expansion screw according to claim 1, wherein one side of the adjusting frame (5) and the outer side of the free end of the rotating shaft (10) are fixedly connected with rectangular rods (7) which are arranged in parallel, and the outer sides of the two rectangular rods (7) are sleeved with limiting plates (8).

6. An expansion screw according to claim 5, characterized in that the rubber layer (14) is adhered to the inner surface wall of the through hole of the limit plate (8).