CN207864386U - A kind of retaining fastener - Google Patents

Abstract

The utility model discloses a kind of retaining fasteners, including screw rod, the left end of the screw rod is integrally formed with head of screw, the left end of head of screw offers flat recess, holding tank is offered on the outside of the head of screw right side, the front of the head of screw offers the sliding slot and limiting slot being connected to holding tank, and the limiting slot is located at the side of sliding slot left end, and limiting slot is connected to sliding slot, and the left end of the holding tank is welded with resetting spring.The retaining fastener, prevent screw from being fallen off in mechanical equipment vibration using the frictional force cut somebody's hair between mechanical equipment, ensure that reduces accident generation, and since the rubber pad for upper bonding of cutting somebody's hair increases the frictional force cut somebody's hair between equipment, the retaining performance for further improving screw can be slided into driving lever in limiting slot when turning head of screw by sliding of the driving lever in sliding slot and limiting slot, so that rubber pad is detached with the surface of mechanical equipment, facilitates removing for screw.

Description

A kind of retaining fastener

Technical field

The utility model is related to machine components technical field, specially a kind of retaining fastener.

Background technology

Fastener is also referred to as standard component on the market, is to be fastenedly connected into two or more parts (or component) For an entirety when used a kind of machine components general name.Its feature is that description is various, and performance purposes is different, and And it is standardization, seriation, unitized strong.Fastener is most widely used mechanical basic part, is in great demand.Spiral shell Nail is one kind of fastener, and screw refers to screw, is former using the inclined-plane circular rotating of object and the physics and mathematics of frictional force Reason fastens the tool of implements parts by easy stages.Screw is the general saying of fastener, daily pet phrase, currently, domestic general It is standard component, as minus screw or plus screw all over the screw used.This screw tightness is good, convenient for disassembly and assembly.Screw is made For a kind of fastener, it is widely used in all trades and professions, usual people pay attention to the linkage function of screw, and firm to the fastening of screw Property research and development it is insufficient, the phenomenon that toner screw is often will appear in mechanical equipment, there are some potential safety problemss.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of retaining fastener, solves in mechanical equipment The phenomenon that often will appear toner screw, there are some potential safety problemss, and current retaining fastener is not square enough in the presence of removing Just the problem of.

(2) technical solution

In order to achieve the above object, the utility model is achieved by the following technical programs：A kind of retaining fastener, including Screw rod, for the left end of the screw rod integrally formed with head of screw, the left end of head of screw offers flat recess, the head of screw right side Outside offer holding tank, the front of the head of screw offers the sliding slot and limiting slot being connected to holding tank, the limit Slot is located at the side of sliding slot left end, and limiting slot is connected to sliding slot, and the left end of the holding tank is welded with resetting spring, described The right end of resetting spring is arranged with push rod, and the right end of the push rod, which is welded with, cuts somebody's hair, and the right side cut somebody's hair is bonded with rubber pad, institute It states and is plugged with driving lever in sliding slot, driving lever is located at one end in holding tank and is welded with push rod.

Preferably, the holding tank is cylinder, described to cut somebody's hair as the disc equal with holding tank diameter.

Preferably, J-shaped structure is formd between the sliding slot and limiting slot.

Preferably, the quantity of the holding tank is no less than one, and equidistant surround of the holding tank is opened in screw rod Outside.

Preferably, it is mutually perpendicular between the push rod and driving lever.

(3) advantageous effect

The utility model has following advantageous effect：The retaining fastener, utilizes the friction cut somebody's hair between mechanical equipment For power to prevent screw from being fallen off in mechanical equipment vibration, ensure that reduces accident generation, and upper viscous due to cutting somebody's hair The rubber pad connect increases the frictional force cut somebody's hair between equipment, further improves the retaining performance of screw, is existed by driving lever Driving lever can be slided into limiting slot when turning head of screw, rubber pad is made to be set with machinery by the sliding in sliding slot and limiting slot Standby surface separation, facilitates removing for screw, is sliding into sliding slot driving lever from limiting slot after screw-driving, cutting somebody's hair It can be bonded with the surface of mechanical equipment under the action of resetting spring, use is more convenient.

Description of the drawings

Fig. 1 is the utility model structure front view；

Fig. 2 is the utility model structure top view；

Fig. 3 is the utility model structure sectional view.

In figure：1 screw rod, 2 head of screws, 3 limiting slots, 4 resetting springs, 5 sliding slots, 6 driving levers, 7 rubber pads, 8 flat recesses, 9 push away Head, 10 push rods, 11 holding tanks.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of retaining fastener, including screw rod 1, screw rod 1 Left end integrally formed with head of screw 2, the left end of head of screw 2 offers flat recess 8, and head of screw offers on the outside of 2 right side Holding tank 11, holding tank 11 are cylinder, and the quantity of holding tank 11 is no less than one, and equidistant surround of holding tank 11 opens up In the outside of screw rod 1,9 are cut somebody's hair as the disc equal with 11 diameter of holding tank, the front of head of screw 2 offers and holding tank 11 The sliding slot 5 and limiting slot 3 of connection, limiting slot 3 is located at the side of 5 left end of sliding slot, and limiting slot 3 is connected to sliding slot 5, sliding slot 5 J-shaped structure is formd between limiting slot 3, the left end of holding tank 11 is welded with resetting spring 4, and the right end of resetting spring 4 is arranged There is a push rod 10, the right end of push rod 10, which is welded with, cuts somebody's hair 9, prevents screw from existing using the frictional force cut somebody's hair between 9 and mechanical equipment It is fallen off when mechanical equipment vibration, ensure that reduces accident generation, and 9 right side of cutting somebody's hair is bonded with rubber pad 7, and Due to cutting somebody's hair, the rubber pad 7 being bonded on 9 increases the frictional force cut somebody's hair between 9 and equipment, further improves the retaining of screw Performance, driving lever 6 is plugged in sliding slot 5, and driving lever 6 and the cooperation of sliding slot 5 also play the effect limited to push rod 10, anti-throw-out lever 10 transition skid off, and be located at one end in holding tank 11 to driving lever 6 welds with push rod 10, is mutually perpendicular between push rod 10 and driving lever 6, By sliding of the driving lever 6 in sliding slot 5 and limiting slot 3, driving lever 6 can be slided into limiting slot 3 when turning head of screw 2, So that rubber pad 7 is detached with the surface of mechanical equipment, facilitate removing for screw, after screw-driving by driving lever 6 from limiting slot 3 It slides into sliding slot 5, cut somebody's hair 9 can be bonded under the action of resetting spring 4 with the surface of mechanical equipment, and use is more convenient.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of retaining fastener, including screw rod (1), the left end of the screw rod (1) is integrally formed with head of screw (2), head of screw (2) left end offers flat recess (8), it is characterised in that：Holding tank is offered on the outside of head of screw (2) right side (11), the front of the head of screw (2) offers the sliding slot (5) being connected to holding tank (11) and limiting slot (3), the limiting slot (3) it is located at the side of sliding slot (5) left end, and limiting slot (3) is connected to sliding slot (5), the left end welding of the holding tank (11) There are resetting spring (4), the right end of the resetting spring (4) to be arranged with push rod (10), the right end of the push rod (10), which is welded with, to be pushed away Head (9), the right side of (9) of cutting somebody's hair are bonded with rubber pad (7), driving lever (6) are plugged in the sliding slot (5), driving lever (6), which is located at, to be held It is welded with push rod (10) one end received in slot (11).

2. a kind of retaining fastener according to claim 1, it is characterised in that：The holding tank (11) is cylinder, institute It states and cuts somebody's hair (9) as the disc equal with holding tank (11) diameter.

3. a kind of retaining fastener according to claim 1, it is characterised in that：Between the sliding slot (5) and limiting slot (3) Form J-shaped structure.

4. a kind of retaining fastener according to claim 1, it is characterised in that：The quantity of the holding tank (11) is no less than One, and the holding tank (11) is equidistant around the outside for being opened in screw rod (1).

5. a kind of retaining fastener according to claim 1, it is characterised in that：Between the push rod (10) and driving lever (6) It is mutually perpendicular to.