Combined bushing with adjustable outer bushing

Abstract

A combined bushing with an adjustable outer bushing body comprises an inner bushing body, an upper support is fixed to the top end of the inner bushing body, a lower support is fixed to the bottom end of the inner bushing body, an upper outer bushing body and a lower outer bushing body are arranged on the outer side of the inner bushing body, the top end of the upper outer bushing body is fixed to the bottom end of the upper support, and the bottom end of the lower outer bushing body is fixed to the top end of the lower support. The lower end of the upper outer bushing is detachably and fixedly connected with the upper end of the lower outer bushing; a plurality of upper baffles which are evenly arranged at intervals are arranged at the top end of the upper support in the circumferential direction, an upper nut is connected to the upper support in a threaded mode, a check block which enables the upper baffles to be squeezed and drawn close towards the central axis is fixed to the top end in the upper nut, a lower baffle is arranged at the top end of the lower support, and a lower nut with an opening in the top end is connected to the lower support in a threaded mode. And a stop block for extruding and closing the lower baffle towards the central axis is fixed at the top end in the lower nut. The device is simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to automobile line speed bushing technical field especially relates to a outer bushing adjustable combined bushing. BACKGROUND

[0002] The bushing is a sleeve for protecting and fixing equipment or parts, usually used in mechanical, automotive, aerospace and other fields, different equipment and parts need to use different types and specifications of bushings to meet the specific function and performance requirements, generally using polytetrafluoroethylene or graphite and other corrosion resistant materials, the existing bushing mostly has only one layer, which is easy to wear and tear and has poor shock absorption performance in the use process, and the existing bushing has poor sealing performance for automobile line speed at both ends. CONTENT OF UTILITY MODEL

[0003] The utility model discloses in order to solve the technical problem that the existing bushing both ends opening size can not be adjusted and lead to poor sealing performance of bushing, provides a outer bushing adjustable combined bushing, including the inner bushing that both ends are open, the top of inner bushing detachably fixed with annular upper support, the bottom of inner bushing detachably fixed with lower support, the outside of inner bushing is equipped with upper outer bushing and lower outer bushing, the top of upper outer bushing is fixed in the bottom of upper support, the bottom of lower outer bushing is fixed in the top of lower support, and the lower end of upper outer bushing is detachably fixed with the upper end of lower outer bushing, the top of inner bushing is equipped with the assembly recess that is annular, the bottom of upper support is equipped with annular protrusion that is matched with assembly recess, and upper support is clamped in the top of inner bushing through annular protrusion, the bottom of inner bushing is equipped with the assembly recess that is annular, the top of lower support is equipped with annular protrusion that is matched with assembly recess, and lower support is clamped in the top of inner bushing through annular protrusion, upper support and lower support are detachably fixed on inner bushing, and the convenient assembly is set up, and upper outer bushing and lower outer bushing are set up in detachable mode, and the convenient upper outer bushing and lower outer bushing are set up on the outside of inner bushing, and the convenient disassembly replacement is set up. The top of upper support is provided with a plurality of evenly spaced upper baffles, and the top of upper support is screw-connected with upper nut, and the inside top of upper nut is fixed with the block that extrudes the upper baffle to the middle axis, the top of lower support is provided with a plurality of evenly spaced lower baffles, and the top of lower support is screw-connected with lower nut, and the inside top of lower nut is fixed with the block that extrudes the lower baffle to the middle axis, the setting of upper baffle, lower baffle and block, when rotating upper nut and lower nut, the block pushes the upper baffle and lower baffle to the middle axis of inner bushing, that is, each upper baffle is mutually close, each lower baffle is mutually close, and the sealing performance is increased.

[0004] Preferably, the bottom of the upper outer bushing is provided with a ring-shaped clamping groove, and the top of the lower outer bushing is provided with a clamping ring matched with the clamping groove, and the clamping ring on the lower outer bushing is clamped in the clamping groove of the upper outer bushing.

[0005] Preferably, the upper support and the lower support are provided with threaded joints.

[0006] The above scheme has the following advantages:

[0007] The upper outer bushing and the lower outer bushing are detachably arranged, facilitating replacement and assembly; the upper baffle, the lower baffle and the stopper are arranged, when the upper nut and the lower nut are rotated, the stopper pushes the upper baffle and the lower baffle to close to the central axis of the inner bushing, that is, each upper baffle closes to each other, and each lower baffle closes to each other, increasing the sealing performance; the upper nut is threadedly connected with the upper support, and the lower nut is threadedly connected with the lower support, which can adjust the degree of extrusion of the stopper on the upper baffle and the lower baffle, facilitating control of the extrusion degree of the upper baffle and the lower baffle on the cable. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0009] Figure 2 It is a top view structure schematic view of the utility model;

[0010] Figure 3 It is Figure 2 a sectional structure schematic view;

[0011] Figure 4 It is a structure schematic view of the upper outer bushing and the upper support.

[0012] The figure mark: 1, the inner bushing; 2, the upper support; 3, the lower support; 4, the upper outer bushing; 5, the lower outer bushing; 6, the upper nut; 7, the lower nut; 11, the assembly recess; 21, the upper baffle; 22, the annular protrusion; 23, the threaded joint; 31, the lower baffle; 41, the clamping groove; 51, the clamping ring; 61, the stopper. DETAILED DESCRIPTION

[0013] As Figures 1-4As shown, an outer sleeve adjustable combined bushing includes an inner bushing 1 with both top and bottom ends open, a ring-shaped upper support 2 is detachably fixed to the top end of the inner bushing 1, a lower support 3 is detachably fixed to the bottom end of the inner bushing 1, an upper outer sleeve 4 and a lower outer sleeve 5 are arranged on the outer side of the inner bushing 1, the top end of the upper outer sleeve 4 is fixed to the bottom end of the upper support 2, the bottom end of the lower outer sleeve 5 is fixed to the top end of the lower support 3, and the lower end of the upper outer sleeve 4 is detachably fixedly connected with the upper end of the lower outer sleeve 5, a ring-shaped assembly groove 11 is arranged at the top end of the inner bushing 1, the bottom end of the upper support 2 is provided with a ring-shaped protrusion 22 matched with the assembly groove 11, the upper support 2 is clamped at the top end of the inner bushing 1 through the ring-shaped protrusion 22, a ring-shaped assembly groove 11 is arranged at the bottom end of the inner bushing 1, the top end of the lower support 3 is provided with a ring-shaped protrusion 22 matched with the assembly groove 11, and the lower support 3 is clamped at the top end of the inner bushing 1 through the ring-shaped protrusion 22, the upper support 2 and the lower support 3 are detachably fixed on the inner bushing 1, facilitating assembly, the upper outer sleeve 4 and the lower outer sleeve 5 are arranged in a detachable manner, facilitating the sleeving of the upper outer sleeve 4 and the lower outer sleeve 5 on the outer side of the inner bushing 1, and facilitating disassembly and replacement, a plurality of upper baffles 21 evenly spaced are arranged circumferentially at the top end of the upper support 2, a threaded upper nut 6 with an opening at the top end is threadedly connected to the upper support 2, a block 61 for extruding the upper baffles towards the central axis is fixed at the inner top end of the upper nut 6, a plurality of lower baffles 31 evenly spaced are arranged circumferentially at the top end of the lower support 3, a threaded lower nut 7 with an opening at the top end is threadedly connected to the lower support 3, a block 61 for extruding the lower baffles 31 towards the central axis is fixed at the inner top end of the lower nut 7, and the arrangement of the upper baffles 21, the lower baffles 31 and the block 61, when the upper nut 6 and the lower nut 7 are rotated, the block 61 pushes the upper baffles 21 and the lower baffles 31 towards the central axis of the inner bushing 1, i.e. each upper baffle 21 is mutually extruded, each lower baffle 31 is mutually extruded, and the sealing performance is improved.

[0014] Preferably, a ring-shaped clamping groove 41 is arranged at the bottom end of the upper outer sleeve 4, and a clamping ring 51 matched with the clamping groove 41 is arranged at the top end of the lower outer sleeve 5, and the clamping ring 51 on the lower outer sleeve 5 is clamped in the clamping groove 41 on the upper outer sleeve 4.

[0015] Preferably, threaded joints 23 are arranged on the upper support 2 and the lower support 3; and inner threads matched with the threaded joints 23 are arranged on the upper nut 6 and the lower nut 7.

[0016] Use process:

[0017] The utility model discloses a first, the annular protruding 22 of upper support 2 bottom end is connected to the assembly recess 11 of inner bush 1 top, and then the annular protruding 22 of lower support 3 top is connected to the dog catch groove 11 of inner bush 1 bottom, and the clamping ring 51 of lower outer bush 5 top is connected to the clamping groove 41 of upper outer bush 4 bottom, after the cable passes through inner bush 1, upper nut 6 and lower nut 7, the threaded connection of upper nut 6 is carried out on the threaded joint 23 of upper support 2 top, and the threaded connection of lower nut 7 is carried out on the threaded joint 23 of lower support 3, according to the demand, continue to rotate upper nut 6 and lower nut 7, and the stopper 61 pushes the upper baffle 21 and lower baffle 31 to the central axis of inner bush 1 and closes, that is, each upper baffle 21 closes each other, and each lower baffle 31 closes each other, so that the upper baffle 21 and lower baffle 31 compress the cable.

[0018] In the description of the utility model, it is understood that the orientation or positional relationship of the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0019] The above embodiment is a description of the utility model, not a limitation of the utility model, and any simple transformation of the utility model belongs to the protection scope of the utility model.

Claims

1. An adjustable combination bushing comprising an inner bushing open at both upper and lower ends, characterized in that: The top end of the inner sleeve is detachably fixed with an annular upper support, the bottom end of the inner sleeve is detachably fixed with a lower support, the outer side of the inner sleeve is provided with an upper outer sleeve and a lower outer sleeve, the top end of the upper outer sleeve is fixed at the bottom end of the upper support, the bottom end of the lower outer sleeve is fixed at the top end of the lower support, and the lower end of the upper outer sleeve and the upper end of the lower outer sleeve are detachably fixedly connected; the top end of the upper support is circumferentially provided with a plurality of uniformly spaced upper baffles, and the upper support is threadedly connected with an upper nut cap having an opening at the top end, the inner top end of the upper nut cap is fixed with a baffle block for extruding the upper baffles towards the central axis, the top end of the lower support is circumferentially provided with a plurality of uniformly spaced lower baffles, and the lower support is threadedly connected with a lower nut cap having an opening at the top end, the inner top end of the lower nut cap is fixed with a baffle block for extruding the lower baffles towards the central axis.

2. An adjustable combination bushing of an outer bushing according to claim 1, characterized in that: The top end of the inner sleeve is provided with an annular assembly groove, the bottom end of the upper support is provided with an annular protrusion matched with the assembly groove, and the upper support is clamped at the top end of the inner sleeve through the annular protrusion.

3. An adjustable combination bushing of an outer bushing according to claim 1, characterized in that: The bottom end of the inner sleeve is provided with an annular assembly groove, the top end of the lower support is provided with an annular protrusion matched with the assembly groove, and the lower support is clamped at the top end of the inner sleeve through the annular protrusion.

4. An adjustable combination bushing of an outer bushing according to claim 1, characterized in that: The bottom end of the upper outer sleeve is provided with an annular clamping groove, the top end of the lower outer sleeve is provided with a clamping ring matched with the clamping groove, and the clamping ring on the lower outer sleeve is clamped in the clamping groove of the upper outer sleeve.

5. An adjustable combination bushing of an outer bushing according to claim 1, characterized in that: The upper support and the lower support are both provided with threaded joints.

Images