Pin shaft

Abstract

The utility model provides a pin shaft, and belongs to the technical field of pin shafts. The problem that pin shafts with different lengths and models need to be replaced due to the fact that pin shafts with different lengths and sizes are needed for connection in some special working condition environments at present is solved. The pin shaft comprises a pin shaft body, the pin shaft body is composed of a plurality of pin shaft units, each pin shaft unit comprises a pin shaft piece, a connecting piece, a sliding rod, a rotating piece and a clamping piece, a movable cavity for the sliding piece to slide is formed in the pin shaft piece, a connecting spring is arranged in a sliding groove, and the rotating piece is arranged at the upper end of the sliding rod. The clamping piece is arranged on the rotating piece, a sliding groove for the clamping piece to slide is formed in the pin shaft piece, and a clamping groove connected with the clamping piece in a clamped mode is formed in the upper end of the pin shaft piece. The utility model has the advantages of stable connection and low cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pin shaft technical field, and particularly relates to a pin shaft. BACKGROUND

[0002] Pin shaft is a kind of standard fastener, both static fixed connection, also can be connected with relative motion, mainly used for the hinge of two parts, constitute hinge connection, pin shaft usually uses split pin locking, reliable, easy to disassemble.In some special working conditions, different length size pin shaft is needed to connect, which needs to replace different length models of pin shaft, these different length pin shafts occupy larger space, higher manufacturing cost, and inconvenient to carry and other shortcomings. SUMMARY

[0003] The utility model discloses a pin shaft that is reasonable in design, simple in structure and convenient to connect.

[0004] The utility model discloses a pin shaft, including pin shaft body, its characterized in that pin shaft body is by several pin shaft units, pin shaft unit includes pin shaft piece, connecting piece, sliding rod, rotating part and clamping piece, the movable cavity that the sliding piece is in pin shaft piece and has sliding, and connecting spring is arranged in the sliding slot, the rotating part is arranged on the upper end of sliding rod, and with the movable activity of sliding rod, the clamping piece is arranged on the rotating part, and the sliding slot that the clamping piece is slid is seted up on pin shaft piece, the upper end of pin shaft piece is seted up with the clamping groove that clamping piece is connected, the lower end of sliding rod is provided with outer thread, the recess that the sliding rod of another pin shaft unit is connected is seted up on connecting piece, and the recess is provided with the internal thread that is matched with the outer thread of sliding rod.

[0005] In the pin shaft, one end of the sliding rod extends into the pin shaft piece, and the other end of the sliding rod can extend out of the pin shaft piece and be connected with another pin shaft unit.

[0006] In the pin shaft, a sliding part is arranged on the sliding rod and in the movable cavity, and the connecting spring is sleeved on the sliding rod, and one end of the connecting spring is connected with the sliding part.

[0007] Compared with the prior art, the pin shaft can control the sliding rod to extend out of the pin shaft piece and connect multiple pin shaft units to form a pin shaft body with different lengths, which is suitable for different scenes, the multiple pin shaft units can be used in combination, has the advantages of occupying less space, low manufacturing cost, and convenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1This is a structural schematic diagram of a single pin unit in this utility model.

[0009] Figure 2 This is a structural diagram of the connection of this utility model.

[0010] In the figure, 1. Pin body; 2. Pin unit; 3. Pin component; 4. Connector; 5. Sliding rod; 6. Rotating component; 7. Snap-fit ​​component; 8. Movable cavity; 9. Connecting spring; 10. Slide groove; 11. Snap-fit ​​groove; 12. Groove; 13. Sliding part. Detailed Implementation

[0011] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0012] like Figure 1 , Figure 2 As shown, this pin includes a pin body 1, which is composed of several pin units 2. Each pin unit 2 includes a pin component 3, a connecting component 4, a sliding rod 5, a rotating component 6, and a snap-fit ​​component 7. The pin component 3 has a movable cavity 8 for the sliding component to slide, and a connecting spring 9 is provided in the slide groove 10. The rotating component 6 is located at the upper end of the sliding rod 5 and moves with the sliding rod 5. The snap-fit ​​component 7 is located on the rotating component 6, and the pin component 3 has a slide groove 10 for the snap-fit ​​component 7 to slide. The upper end of the pin component 3 has a snap-fit ​​groove 11 for engaging with the snap-fit ​​component 7. The lower end of the sliding rod 5 has an external thread. The connecting component 4 has a groove 12 for connecting the sliding rod 5 of another pin unit 2, and the groove 12 has an internal thread that matches the external thread of the sliding rod 5.

[0013] In Embodiment 1, the pin body 1 is a single pin unit 2. The engaging part is engaged in the engaging groove 11 on the pin component 3. The return spring is compressed, and the sliding rod 5 is retracted into the movable cavity 8 of the pin body. The single pin unit 2 is used to fix two parts. In Embodiment 2, the pin body 1 consists of two pin units 2. By rotating the rotating component 6 and the connecting component 4, the engaging part is positioned at the sliding groove 10 of the pin body. The return spring rebounds, extending one end of the sliding rod 5 out of the pin body and engaging with the groove 12 on the connecting component 4 of the other pin unit 2. The two pin units 2 form the pin body 1, which is used to fix two parts with longer lengths. When a longer pin is needed, a pin body 1 formed by multiple pin units 2 can be used. Compared with the prior art, users only need to prepare a few of this type of pin units 2 to achieve the effect of pin bodies 1 of different lengths, reducing the cost of use.

[0014] Further, one end of the sliding rod 5 extends into the pin member 3, and the other end of the sliding rod 5 extends out of the pin member 3 and is connected to the other pin unit 2.

[0015] Further, a sliding part 13 is arranged on the sliding rod 5 and in the movable cavity 8, and the connecting spring 9 is sleeved on the sliding rod 5 and connected to the sliding part 13 at one end.

[0016] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0017] Although the terms pin body 1, pin unit 2, pin member 3, connecting member 4, sliding rod 5, rotating member 6, clamping member 7, movable cavity 8, connecting spring 9, sliding groove 10, clamping groove 11, recess 12, sliding part 13, etc. are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A pin shaft comprising a pin shaft body (1), characterized in that, The pin shaft body (1) is composed of several pin shaft units (2), the pin shaft unit (2) includes pin shaft piece (3), connecting piece (4), sliding rod (5), rotating piece (6) and clamping piece (7), the pin shaft piece (3) has the movable cavity (8) for sliding piece to slide in, and connecting spring (9) is arranged in the sliding slot (10), the rotating piece (6) is arranged on the upper end of sliding rod (5), and with the activity of sliding rod (5), the clamping piece (7) is arranged on the rotating piece (6), and the sliding slot (10) for the clamping piece (7) is slid is set on the pin shaft piece (3), the upper end of the pin shaft piece (3) is provided with the clamping groove (11) for clamping piece (7) is connected, the lower end of the sliding rod (5) is provided with external thread, the connecting piece (4) is provided with recess (12) for the sliding rod (5) of another pin shaft unit (2) is connected, and the recess (12) is provided with the internal thread matched with the external thread of the sliding rod (5).

2. A pin according to claim 1, wherein One end of the sliding rod (5) extends into the pin shaft piece (3), and the other end of the sliding rod (5) can extend out of the pin shaft piece (3) and be connected with another pin shaft unit (2).

3. A pin according to claim 1, wherein The sliding rod (5) is provided with a sliding part (13) in the movable cavity (8), and the connecting spring (9) is sleeved on the sliding rod (5), and one end is connected with the sliding part (13).

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