CN220145788U - Pin fixing device - Google Patents

Abstract

The utility model discloses a pin shaft fixing device which comprises a shell, wherein a driving assembly and a clamping assembly are arranged on the shell, the driving assembly comprises two sliding grooves symmetrically arranged on the inner wall of the shell, a sliding block is connected between the two sliding grooves in a sliding mode, a connecting rod is arranged on the outer surface of the sliding block and connected with the clamping assembly, a threaded hole is further formed in the outer surface of the shell, a threaded rod is connected with the inner threads of the threaded hole, two grooves are symmetrically formed in the outer surface of the threaded rod, and one end of the threaded rod is movably connected with the sliding block. The beneficial effects are that: through drive assembly's design to can drive the threaded rod rotation, the threaded rod rotation moves under the effect of screw hole, drives the slider and moves in the spout when the threaded rod removes, and the slider drives the connecting rod and removes when removing, and then drives clamping assembly operation, makes clamping assembly can fix the axostylus axostyle centre gripping.

Description

Pin fixing device

Technical Field

The utility model relates to the technical field of fasteners, in particular to a pin shaft fixing device.

Background

The pin shaft is a standardized fastener, can be fixedly connected in a static state and can also relatively move with a connected piece, and is mainly used for the hinge joint of two parts to form hinge connection. The pin shaft is usually locked by a cotter pin, so that the pin shaft is reliable in work and convenient to detach. The pin shaft is quite common in production and life due to strong practicality. Among the numerous components of the tower crane, the pin is one of the workpieces.

In the actual use process of the pin shaft, the pin shaft is often required to be installed and fixed, but the problem of difficult installation of the pin shaft is quite common due to the uncertainty of the installation position of the pin shaft, so that the auxiliary operation of the pin shaft fixing device is required, the existing pin shaft fixing device can meet the basic use requirement, but the defects are quite obvious, and the pin shaft fixing device mainly comprises the following components:

the existing pin shaft fixing device is low in applicability and can not be suitable for pins with different diameter specifications; meanwhile, the pin shaft fixing device is complex in structure and not convenient to use.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides a pin shaft fixing device which aims to overcome the technical problems in the prior art.

For this purpose, the utility model adopts the following specific technical scheme:

the utility model provides a round pin axle fixing device, includes the casing, be equipped with drive assembly and clamping assembly on the casing, drive assembly is including the symmetry seting up two spouts on the shells inner wall, two sliding connection has the slider between the spout, the slider surface is equipped with the connecting rod, the connecting rod with clamping assembly is connected, the screw hole has still been seted up to the shells surface, screw hole internal thread has the threaded rod, two recesses have been seted up to threaded rod surface symmetry, the one end of threaded rod with slider swing joint, the threaded rod is located shell outside one end surface cover is equipped with driven gear, driven gear surface symmetry is equipped with two slip stopper, shell surface seted up with slip stopper matched with sliding tray, driven gear inside be equipped with two with recess matched with lug, shell surface swing joint has the pivot, the pivot middle part be fixed with the driving gear of driven gear meshing, the tip of pivot is fixed with the carousel.

Preferably, the clamping assembly comprises two fixing shafts symmetrically arranged on the shell, a rotating piece is sleeved on the fixing shafts, a movable hole is formed in one end of the rotating piece, the connecting rod penetrates through the two movable holes, a mounting groove is formed in the other end of the rotating piece, a mounting block is arranged in the mounting groove, and a clamping block is arranged on one side of the mounting block.

Preferably, bolt holes are formed in both the rotating member and the mounting block, and fastening bolts are arranged in the bolt holes.

Preferably, the sliding groove is of an annular structure, a through hole matched with the threaded rod is formed in the middle of the driven gear, and the through hole is symmetrically fixed on the inner wall of the groove.

Preferably, a connecting groove is formed in the center of the side face of the sliding block, a bearing is arranged in the connecting groove, and the end portion of the threaded rod penetrates into the connecting groove to be connected and fixed with the bearing.

Preferably, the slider and the connecting rod are both of an integrated structure.

The beneficial effects of the utility model are as follows:

through the design of the driving component, the threaded rod can be driven to rotate, the threaded rod is driven to move under the action of the threaded hole, the sliding block is driven to move in the sliding groove when the threaded rod moves, the sliding block drives the connecting rod to move when moving, and then the clamping component is driven to operate, so that the shaft rod can be clamped and fixed by the clamping component;

through the design of the clamping assembly, the two rotating parts can rotate on the fixed shaft under the action of the driving assembly, and then the clamping blocks at the end parts of the rotating parts are driven to rotate to clamp and fix the pin shaft; through the design of the convex blocks and the grooves, the driven gear can drive the threaded rod to rotate when rotating, so that the driven gear drives the threaded rod to rotate and adapt to the linear motion of the threaded rod; through the design of the sliding limiting block and the sliding groove, the driven gear can rotate on the shell; through the design of the movable hole, the linear motion of the sliding block and the arc motion of the rotating piece can be matched together, so that motion interference is avoided; through the design of the connecting groove and the bearing, the rotary motion of the threaded rod can not influence the linear motion of the sliding block; through the design of bolt hole and fastening bolt to can change not unidimensional grip block according to the axostylus axostyle size.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a general structural schematic diagram of a pin fixing device according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a housing structure of a pin fixing device according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a driven gear of a pin fixture according to an embodiment of the present utility model;

fig. 4 is a schematic view showing a partial internal structure of a housing of a pin fixing device according to an embodiment of the present utility model.

In the figure:

1. a housing; 2. a chute; 3. a threaded hole; 4. a slide block; 5. a connecting rod; 6. a threaded rod; 7. a groove; 8. a driven gear; 9. a sliding limiting block; 10. a through hole; 11. a bump; 12. a rotating shaft; 13. a drive gear; 14. a turntable; 15. a fixed shaft; 16. a rotating member; 17. a mounting groove; 18. a mounting block; 19. a clamping block; 20. bolt holes; 21. a fastening bolt; 22. a movable hole.

Detailed Description

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

According to an embodiment of the present utility model, there is provided a pin fixing device.

First embodiment as shown in fig. 1 to 4, a pin fixing device according to an embodiment of the present utility model includes a housing 1, the shell 1 is provided with a driving component and a clamping component, the driving component comprises two sliding grooves 2 symmetrically arranged on the inner wall of the shell 1, a sliding block 4 is connected between the two sliding grooves 2 in a sliding way, the outer surface of the sliding block 4 is provided with a connecting rod 5, through the design of the connecting rod 5, so that the clamping assembly can be pushed to move in the linear motion of the sliding block 4, the connecting rod 5 is connected with the clamping assembly, the outer surface of the shell 1 is also provided with a threaded hole 3, the threaded hole 3 is internally connected with a threaded rod 6 in a threaded way, two grooves 7 are symmetrically arranged on the outer surface of the threaded rod 6, one end of the threaded rod 6 is movably connected with the sliding block 4, the threaded rod 6 is positioned at the outer surface of one end of the outer side of the shell 1 and is sleeved with a driven gear 8, two sliding limiting blocks 9 are symmetrically arranged on the outer surface of the driven gear 8, the outer surface of the shell 1 is provided with a sliding groove matched with the sliding limiting block 9, and by the design of the sliding limiting block 9 and the sliding groove, so that the driven gear 8 can make rotary motion on the shell 1, two convex blocks 11 matched with the grooves 7 are arranged in the driven gear 8, and by the design of the convex blocks 11 and the grooves 7, so that the driven gear 8 can drive the threaded rod 6 to rotate when rotating, thereby the driven gear 8 drives the threaded rod 6 to rotate and adapt to the linear motion of the threaded rod, the outer surface of the shell 1 is movably connected with a rotating shaft 12, a driving gear 13 meshed with the driven gear 8 is fixed in the middle of the rotating shaft 12, and a rotary table 14 is fixed at the end part of the rotating shaft 12.

In the second embodiment, as shown in fig. 1 to 4, according to the pin shaft fixing device in the embodiment of the present utility model, the clamping assembly includes two fixing shafts 15 symmetrically disposed on the housing 1, the fixing shafts 15 are sleeved with rotating members 16, one ends of the rotating members 16 are provided with movable holes 22, and through the design of the movable holes 22, the linear motion of the sliding blocks 4 and the arc motion of the rotating members 16 can be adapted together, so as to avoid motion interference, the connecting rod 5 penetrates into the two movable holes 22, the other ends of the rotating members 16 are provided with mounting grooves 17, the mounting grooves 17 are provided with mounting blocks 18, one sides of the mounting blocks 18 are provided with clamping blocks 19, the rotating members 16 and the mounting blocks 18 are provided with bolt holes 20, the bolt holes 20 are provided with fastening bolts 21, and the clamping blocks 19 with different sizes can be replaced according to the shaft sizes through the design of the bolt holes 20 and the fastening bolts 21.

In the third embodiment, as shown in fig. 1 to 4, according to the pin shaft fixing device in the embodiment of the present utility model, the sliding groove is in an annular structure, the middle of the driven gear 8 is provided with a through hole 10 matched with the threaded rod 6, the through hole 10 is symmetrically fixed on the inner wall of the groove 7, the center of the side surface of the slider 4 is provided with a connecting groove, a bearing is arranged inside the connecting groove, the end of the threaded rod 6 penetrates into the connecting groove to be connected and fixed with the bearing, and the design of the connecting groove and the bearing can enable the rotation movement of the threaded rod 6 not to affect the linear movement of the slider 4, and the slider 4 and the connecting rod 5 are in an integrated structure.

In practical application, when the pin shaft is required to be clamped, firstly, a clamping block 19 with a proper size is selected according to the size of the pin shaft, then, an installation block 18 on the clamping block 19 is placed into an installation groove 17 at the side edge of the rotating piece 16, and then, the installation block 18 and the rotating piece 16 are fixed together through a fastening bolt 21;

then, the user holds the shell 1 with one hand, the turntable 14 is selected with the other hand, the turntable 14 rotates to drive the driving gear 13 to rotate, the driving gear 13 rotates to drive the driven gear 8 to rotate, the driven gear 8 rotates under the action of the sliding limiting block 9 and the sliding groove, the driven gear 8 rotates to drive the threaded rod 6 to rotate through the protruding block 11 and the groove 7, the threaded rod 6 rotates to move under the action of the threaded hole 3, the threaded rod 6 moves and drives the sliding block 4 to move in the sliding groove 2, the sliding block 4 moves and drives the connecting rod 5 to move, the connecting rod 5 moves in the two movable holes 22 and simultaneously presses the inner wall of the movable holes 22, and then drives the two rotating pieces 16 to rotate on the fixed shaft 15, and further drives the clamping blocks 19 at the end parts of the rotating pieces 16 to rotate to clamp and fix the pin shaft.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (6)

1. The utility model provides a pin fixing device, its characterized in that, including casing (1), be equipped with drive assembly and clamping assembly on casing (1), drive assembly is including the symmetry seting up two spouts (2) on casing (1) inner wall, two sliding connection has slider (4) between spout (2), slider (4) surface is equipped with connecting rod (5), connecting rod (5) with clamping assembly is connected, threaded hole (3) have still been seted up to casing (1) surface, threaded hole (3) internal thread is connected with threaded rod (6), threaded rod (6) surface symmetry has seted up two recess (7), threaded rod (6) one end with slider (4) swing joint, threaded rod (6) are located casing (1) outside one end surface cover is equipped with driven gear (8), driven gear (8) outward appearance symmetry is equipped with two slip stopper (9), casing (1) surface seted up with slip stopper (9) matched with sliding groove, driven gear (8) inside be equipped with two recess (7) have bump (12) with casing (1), the middle part of the rotating shaft (12) is fixed with a driving gear (13) meshed with the driven gear (8), and the end part of the rotating shaft (12) is fixed with a rotary table (14).

2. The pin shaft fixing device according to claim 1, wherein the clamping assembly comprises two fixing shafts (15) symmetrically arranged on the shell (1), a rotating member (16) is sleeved on each fixing shaft (15), a movable hole (22) is formed in one end of each rotating member (16), the connecting rod (5) penetrates through the two movable holes (22), a mounting groove (17) is formed in the other end of each rotating member (16), a mounting block (18) is arranged in each mounting groove (17), and a clamping block (19) is arranged on one side of each mounting block (18).

3. A pin fixing device according to claim 2, characterized in that the rotating member (16) and the mounting block (18) are both provided with bolt holes (20), and the bolt holes (20) are internally provided with fastening bolts (21).

4. A pin shaft fixing device according to claim 3, wherein the sliding groove is of an annular structure, a through hole (10) matched with the threaded rod (6) is formed in the middle of the driven gear (8), and the through hole (10) is symmetrically fixed on the inner wall of the groove (7).

5. The pin shaft fixing device according to claim 4, wherein a connecting groove is formed in the center of the side face of the sliding block (4), a bearing is arranged in the connecting groove, and the end portion of the threaded rod (6) penetrates into the connecting groove to be fixedly connected with the bearing.

6. A pin fixing device according to claim 5, characterized in that the slider (4) and the connecting rod (5) are of one-piece construction.