CN206600343U - Combination nut - Google Patents

Abstract

The utility model discloses a kind of combination nut, including nut base, nut end and multiple locking members, the nut base and the nut end have the internal thread matched；At least three through holes vertically is equipped with the nut base；The locking member is in the through hole, and two ends protrude the nut base, and the locking member has the elastic construction of axial direction, and its top has unidirectional pawl structure, and the direction of the unidirectional pawl structure need to be consistent with the direction of the internal thread；The nut end has the second pawl structure engaged with the unidirectional pawl structure.The utility model can effectively prevent the phenomenon that nut is released from occurring, and improve bolted reliability.

Description

Combination nut

Technical field

The utility model is related to a kind of nut, particularly a kind of combination nut.

Background technology

It is a kind of connected mode commonly used in industrial production to be spirally connected, and typically screw bolt and nut is used cooperatively, such as Fig. 1 institutes Show, bolt 03 runs through part 1 and part 2 02 from side, is then locked in offside nut 04, you can by the He of part 1 Part 2 02 is connected.But if part 1 and part 2 02 are metal plate, then using Fig. 1 connected mode, although The connection of metal plate 1 and metal plate 2 can be completed, but this connected mode is for the intensity of part 1 and part 2 02 Extremely disadvantageous.Because the sheet metal member of this connected mode, after vibration environment, easily torn because of vibration, So as to which the failure of whole part can be caused.

Utility model content

The purpose of this utility model is to provide a kind of combination nut, and to solve technical problem of the prior art, it can Effectively prevent the phenomenon that nut is released from occurring, improve bolted reliability.

To achieve the above object, the utility model provides following technical scheme：

A kind of combination nut, including nut base, nut end and multiple locking members, the nut base and the nut End has the internal thread matched；

At least three through holes vertically is equipped with the nut base；

The locking member is in the through hole, and two ends protrude the nut base, and the locking member has axially Elastic construction, its top has a unidirectional pawl structure, and the unidirectional pawl structure direction need to be with the internal thread side To consistent；

The nut end has the second pawl structure engaged with the unidirectional pawl structure.

Preferably, the nut base has to the first raised vertebral body structure of the nut end direction, the through hole It is located on first vertebral body structure；

There is the second vertebral body structure being engaged with the first vertebral body structure, the second pawl structure in the nut end Overall annular in shape, on second vertebral body structure, and the second pawl structure is relative with the annulus where the through hole Should.

Preferably, the locking member is the spring catch that end has the unidirectional pawl structure.

Preferably, the nut base is the cylindrical structure that top has first vertebral body structure, the nut end Portion is hexagon head structure.

Preferably, the circumradius of the nut end is less than the radius of the nut base.

Compared with prior art, combination nut provided by the utility model, by the setting of locking member, by nut end With nut base combination into a combination nut, then again by setting intermeshing list in locking member and nut end respectively To pawl structure, then the groove being connected on part, combination nut can integrally be fixed, the phenomenon for effectively preventing nut from releasing Occur, improve bolted reliability.

Further, the first vertebral body structure of nut base is raised to the nut end direction, the second vertebral body structure with First vertebral body structure is engaged, and increases the contact area of nut end and nut base, makes the two in the process tightened In be more uniformly stressed；The external surface area of nut end is also increased, is easy to the clamping of tightening tool.

Brief description of the drawings

Fig. 1 is the bolted structural representation that prior art is provided；

Fig. 2 is the cross section structure diagram along symmetrical direction of principal axis for the combination nut that the utility model is provided；

Fig. 3 is the overlooking the structure diagram for the combination nut that the utility model is provided；

Fig. 4 is the decomposition texture schematic diagram for the combination nut that the utility model is provided；

Fig. 5 is the partial schematic diagram of the decomposition texture of A-A section views in Fig. 2.

Description of reference numerals：

In Fig. 1：

01- parts one, 02- parts two, 03- bolts, 04- nuts；

In Fig. 2-3：

1- nut bases, the vertebral body structures of 11- first, 12- through holes, 2- nut ends, the vertebral body structures of 21- second, 22- pawls Groove, 3- locking members, the unidirectional pawl structures of 31-.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and can not be construed to of the present utility model Limitation.

Embodiment of the present utility model provides a kind of combination nut, as shown in Figure 2-5, including nut base 1, nut end Portion 2 and multiple locking members 3.Wherein, the nut base 1 and the nut end 2 have the internal thread matched, i.e., the two can With collective effect in a bolt.At least three through holes 12 vertically is equipped with the nut base 1；The locking Part 3 is in the through hole 12, and two ends protrude the nut base 1, and the locking member 3 has the elastic construction of axial direction, Its top has unidirectional pawl structure 31, and the direction of the unidirectional pawl structure 31 need to be consistent with the direction of the internal thread； The nut end 2 has the second pawl structure engaged with the unidirectional pawl structure 31.

Connection in use, when bolt through two parts after, first tighten the nut base 1, then by locking member 3 from The end that the nut end 2 is fitted passes through the nut base 1, and the bottom of the locking member 3 is put into part to be connected (using the combination nut, it is necessary to open up groove on the part contacted with the nut base 1, make institute in upper default groove Stating the part of the bottom protrusion of locking member 3 can be put into the groove).Then the nut end 2 is tightened again, it is only described The direction of unidirectional pawl structure 31 is consistent with the direction of the internal thread, could be when tightening the nut end 2, constantly downwards Compress the locking member 3, until tightening the nut end 2 completely, make the unidirectional pawl structure 31 completely with the second pawl Structure is engaged.Now, in Fig. 5, the unidirectional pawl structure 31 of the locking member 3 can be stuck in the pawl groove of the nut end 2 In 22, i.e., locking member 3 can be stuck in nut end 2.When reversely loosening the nut end 2, because locking member 3 is stuck in spiral shell In female end portion 2, prevent nut end 2 from rotating backward, then realize the effect for preventing that nut from releasing.

Further, as shown in figure 4, the nut base 1 has to the first raised centrum of the direction of nut end 2 Structure 11；The through hole 12 is located on first vertebral body structure 11；

There is the second vertebral body structure 21 for being engaged with first vertebral body structure 11 in the nut end 2, described the The taper of two vertebral body structures 21 is identical with the taper of first vertebral body structure 11, and the second pawl structure is integrally annular in shape, On second vertebral body structure 21, and the second pawl structure is corresponding with the annulus where the through hole 12.Specifically Ground, the second pawl structure is the ring-type pawl structure constituted that joined end to end by multiple pawls and pawl groove.

First vertebral body structure 11 of nut base 1 is raised to the direction of nut end 2, the second vertebral body structure 21 with it is described First vertebral body structure 11 is engaged, and increases the contact area of nut end 2 and nut base 1, makes the two in the process tightened In be more uniformly stressed；The external surface area of nut end 2 is also increased, is easy to the clamping of tightening tool.Through hole 12 is preferably disposed to The middle part of first vertebral body structure 11, makes being more uniformly stressed for locking member 3, extends the service life of the combination nut.Ring-type is fallen Toothing is more beneficial for tightening for nut end 2, prevents it before being not completely tightened and locked by pawl structure.

Further, the locking member 3 is the spring catch that end has the unidirectional pawl structure 31.Do not limit herein System uses spring catch, as long as the chamfering that locking member 3 includes unidirectional pawl structure 31, middle flexible member and the end on top is Can, or even end is not that chamfering can also be completed.Preferred end has the spring catch for the pawl structure being unidirectionally open herein, its elasticity Reliably, it is connected firmly, and process time can be saved.

Further, as shown in Fig. 2 the nut base 1 is the cylinder that top has first vertebral body structure 11 Body structure, the nut end 2 is hexagon head structure, and nut end 2 uses hexagon head structure, and instrument easy to use is tightened.

Further, as shown in Fig. 2 the circumradius of the nut end 2 is less than the half of the nut base 1 Footpath.The circumradius of nut end 2 is less than the radius of the nut base 1, prevents nut end 2 from occurring tension phenomenon.

Construction of the present utility model, feature and action effect is described in detail according to the embodiment shown in schema above, with Upper described is only preferred embodiment of the present utility model, but the utility model is not to limit practical range shown in drawing, it is every according to According to the made change of conception of the present utility model, or the equivalent embodiment of equivalent variations is revised as, still without departing from specification and figure , all should be in protection domain of the present utility model when showing covered spirit.

Claims (5)

1. a kind of combination nut, it is characterised in that：It is described including nut base (1), nut end (2) and multiple locking members (3) Nut base (1) and the nut end (2) have the internal thread matched；

At least three through holes (12) vertically is equipped with the nut base (1)；

The locking member (3) is in the through hole (12), and two ends protrude the nut base (1), the locking member (3) Elastic construction with axial direction, its top has unidirectional pawl structure (31), and the direction of the unidirectional pawl structure (31) is needed It is consistent with the direction of the internal thread；

The nut end (2) has the second pawl structure engaged with the unidirectional pawl structure (31).

2. combination nut according to claim 1, it is characterised in that：The nut base (1) has to the nut end Raised the first vertebral body structure (11) in portion (2) direction, the through hole (12) is located on first vertebral body structure (11)；

There is the second vertebral body structure (21) being engaged with first vertebral body structure (11) on the nut end (2), it is described Second pawl structure is integrally annular in shape, on second vertebral body structure (21), and the second pawl structure is led to described Annulus where hole (12) is corresponding.

3. combination nut according to claim 1 or 2, it is characterised in that：The locking member (3) is that end has the list To the spring catch of pawl structure (31).

4. combination nut according to claim 2, it is characterised in that：The nut base (1) is that top has described the The cylindrical structure of one vertebral body structure (11), the nut end (2) is hexagon head structure.

5. combination nut according to claim 4, it is characterised in that：The circumradius of the nut end (2) is less than The radius of the nut base (1).