CN209195203U - Pulley bracket and pulley assembly - Google Patents

Abstract

The utility model discloses a kind of pulley bracket, including metalwork and plastic wrapper, the surface of the metalwork is equipped with the first punching hole and the second punching hole, and the edge of first punching hole and second punching hole each extends over and be bent to form the first positioning region and the second positioning region；The plastic wrapper is coated on outside the metalwork, and the plastic wrapper is filled in first punching hole and second punching hole, and is wrapped in outside first positioning region and second positioning region.The utility model pulley bracket has the advantages that intensity is big, impact resistance is strong, long service life.In addition, the utility model is also disclosed, a kind of intensity is big, impact resistance is strong, pulley assembly with long service life.

Description

Pulley bracket and pulley assembly

Technical field

The utility model relates to a kind of wardrobe sliding-door pulley component more particularly to a kind of pulley brackets.

Background technique

In daily life, wardrobe generally uses sliding door to realize switch, and structure is the following installation guide rail in doorframe And damper, pulley is installed in the lower edge of door, match pulley with the conduit of guide rail, the prominent foot of the sliding support of pulley with Damper cooperation realizes that door and window is buffered in sliding opening or closing so that guide pulley rolls.Existing pulley generally comprises Pulley bracket, sliding support, idler wheel, adjusting screw and elastic component, idler wheel are articulated in sliding support, and sliding support is slidably arranged In in pulley bracket, elastic component is set between pulley bracket and sliding support, and adjusting screw with pulley bracket by connecting simultaneously The sliding support is obliquely supported, realizes that sliding support is adjustable, and then reach the adjusting to idler wheel.

But in buffering, the moment of idler wheel and damper joint can generate biggish impact, and the impact that pulley is subject to It is directly delivered to pulley bracket with by sliding support, pulley bracket almost bears the major part of these impacts, therefore, to cunning The intensity requirement of wheel support is very high.However, existing pulley bracket is generally made of two ways, one is being made of plastic cement, Although at low cost, intensity is low, is easily damaged, and service life is short；Another kind is by plastic part and stamping parts rivet interlacement It is made, although intensity is improved, production energy consumption is high, at high cost, and due to unreasonable structural design, the modeling on surface layer Material is easily separated from stamping parts under the action of impact, causes to generate loosening between plastics and stamping parts, can crack damage when serious It is bad, it reduces the service life.

Utility model content

That the purpose of this utility model is to provide a kind of intensity is big, impact resistance is strong, pulley bracket with long service life.

The another object of the utility model is to provide that a kind of intensity is big, impact resistance is strong, pulley blocks with long service life Part.

To achieve the goals above, pulley bracket provided by the utility model includes metalwork and plastic wrapper, the gold The surface for belonging to part is equipped with the first punching hole and the second punching hole, the edge difference of first punching hole and second punching hole Extend and be bent to form the first positioning region and the second positioning region；The plastic wrapper is coated on outside the metalwork, and the modeling Material housing is filled in first punching hole and second punching hole, and is wrapped in first positioning region and described second Outside positioning region.

Compared with prior art, the utility model is by forming the first punching hole and the second punching hole for extrustion of metals, Again the first positioning region and second fixed is each extended over and is bent to form at the edge of first punching hole and second punching hole Position portion, first punching hole and the second punching hole can be for filling plastics, so that the plastic wrapper and metalwork wrap up It is stronger.And first positioning region and the second positioning region be due to stretching out the metalwork surface, and after plastic wraps, described the One positioning region and the second positioning region can be used as locating part and limit to the plastic wrapper, and the plastic wrapper is prevented to be detached from The metalwork or the opposite metalwork displacement when impacting larger.In addition, first positioning region and the second positioning region are straight Junction is to the impact of the sliding support of pulley assembly, thus it can be avoided outside plastics directly against the impact of sliding support Set bears excessive impact force；Therefore, the intensity of entire metalwork is very big, impact resistance is strong, effectively prolongs the service life.

Preferably, first punching hole and the second punching hole are in shift to install.

Specifically, the length extending direction of first positioning region and the length extending direction of the second positioning region are identical.

Preferably, the side of first positioning region and the second positioning region has supply plastic wrapper filling first recessed It falls into.First recess can make the plastic wrapper wrap up stronger with metalwork, and structure is more stable.

Preferably, the lower edge of the metalwork is equipped with the curved opening for plastic wrapper filling.The arc is set Shape opening can make the plastic wrapper wrap up stronger with metalwork, and structure prevents plastic wrapper relatively golden with more stable Belong to part horizontal sliding.

Specifically, the edge of the curved opening is equipped with chamfering.After the plastic wrapper is filled in the chamfering, it is described fall Angle can prevent plastic wrapper from sliding along the thickness direction of the metalwork.

Preferably, the top edge of the metalwork is equipped with the back-off for plastic wrapper filling.The back-off can be to prevent The only top edge flange of plastic wrapper opposing metallic part.

Preferably, the surface of the metalwork has the second recess for plastic wrapper filling.Second recess The plastic wrapper can be made to wrap up stronger with metalwork, structure is more stable.

It is set preferably, the surface of first positioning region metalwork opposite with the side of the second positioning region is inclined It sets, and forms an angle filled for the plastic wrapper with the surface of the metalwork.

A kind of pulley assembly, including sliding support, idler wheel, adjusting screw, elastic component and the pulley bracket, the sliding The surface of bracket upwardly extends to form hollow sleeve, and the idler wheel is articulated in the hollow sleeve, and the sliding support is slidably arranged In the pulley bracket, the elastic component is set between the pulley bracket and the sliding support, the adjusting screw spiral shell It is connected to line the pulley bracket and is resisted against on the sliding support.

Detailed description of the invention

Fig. 1 is the positive structure schematic of the utility model pulley assembly.

Fig. 2 is the structure schematic diagram of the utility model pulley assembly.

Fig. 3 is the decomposition diagram of the utility model pulley assembly.

Fig. 4 is the structure chart of the metalwork of the utility model pulley assembly.

Fig. 5 is the structure chart of the pulley bracket of the utility model pulley assembly.

Fig. 6 is the side sectional view of second of the setting form in the first positioning region of this utility model pulley assembly.

Fig. 7 is the front elevation of the third setting form of the first positioning region of this utility model pulley assembly.

Specific embodiment

For technology contents, the construction feature, the effect realized that the utility model is described in detail, below in conjunction with embodiment And attached drawing is cooperated to be explained in detail.

As shown in Figure 1, Figure 2 and Figure 3, the pulley assembly 100 of the utility model includes pulley bracket 1, sliding support 2, rolling Wheel 3, adjusting screw 4 and elastic component 5, the surface of the sliding support 2 form the hollow sleeve 21 upwardly extended through the stamping process, The idler wheel 3 is articulated in the hollow sleeve 21, and the pulley bracket 1 has two reinforcing rib 1a, and the bottom of the reinforcing rib 1a is set There is sliding slot 1b, the both sides of the sliding support 2 are slidingly arranged at respectively in the sliding slot 1b of the pulley bracket 1, the elasticity Part 5 is set between the pulley bracket 1 and the sliding support 2, and the adjusting screw 4 is threadably connected to the pulley branch Frame 1 is simultaneously resisted against on the sliding support 2.Specifically, as follows:

Again as shown in Figures 4 and 5, the pulley bracket 1 includes metalwork 11 and plastic wrapper 12, the plastic wrapper 12 It is coated on the surface of the metalwork 11 and to the edge bound edge of the metalwork 11, the back side of the metalwork 11 can be Exposed.The metalwork 11 has a platform 111, and the plastic wrapper 12 is coated on part behind the surface of the metalwork 11 Plastics are carried on the platform 111.The surface of the metalwork 11 is equipped with two first punching holes 112 and two second punching holes 113, the first punching hole 112 and one second punching hole 113 are square, wherein one first punching hole 112 and one second punching hole 113 are located at the side on its surface, and another first punching hole 112 and the second punching hole 113 are located at the other side on its surface.Described One punching hole 112 and the second punching hole 113 are in shift to install.The distance between two described first punching holes 112 are greater than described in two The distance between second punching hole 113.The inner edge of first punching hole 112 extends and is bent to form the first positioning region 114, the outer edge of second punching hole 113 extends and is bent to form the second positioning region 115, first positioning region 114 and second positioning region 115 be each perpendicular to the surface of the metalwork 11.The length of first positioning region 114 of the same side Extending direction is identical as the length extending direction of the second positioning region 115 and is overlapped, i.e., both on the same line.Outside the plastics Set 12 is filled in first punching hole 112 and the second punching hole 113, and is wrapped in first positioning region 114 and with the Two positioning regions 115；At this moment, the plastics positioned at first positioning region 114 of the same side and the second positioning region 115 and cladding are formed described When reinforcing rib 1a, the reinforcing rib 1a are by the impact force for being parallel to 11 surface of metalwork, first positioning region 114 and with Two positioning regions 115 can be born.

Again referring to Fig. 4, the side of first positioning region 114 and the second positioning region 115, which has, supplies the plastic wrapper First recess 116 of 12 fillings.First recess 116 can make the plastic wrapper 12 wrap up more firm with metalwork 11 Gu structure is more stable.First recess 116 can be blind hole or through-hole, first recess of the utility model 116 be through-hole.

Again referring to Fig. 4, the lower edge of the metalwork 11 is equipped with the curved opening for the plastic wrapper 12 filling 117.The curved opening 117, which is arranged, can make the plastic wrapper 12 wrap up stronger with metalwork 11, and structure is with more steady It is fixed, prevent 12 opposing metallic part of plastic wrapper, 11 horizontal sliding.Specifically, the edge of the curved opening 117 is equipped with chamfering 117a.After the plastic wrapper 12 is filled in the chamfering 117a, the chamfering 117a can prevent plastic wrapper 12 along described The thickness direction of metalwork 11 slides.

Again referring to Fig. 4, the top edge of the metalwork 11 is equipped with the back-off 118 for the plastic wrapper 12 filling.Institute The top edge flange of 12 opposing metallic part 11 of plastic wrapper can be prevented by stating back-off 118.The surface of the metalwork 11, which has, to be supplied The second recess 119 that the plastic wrapper 12 is filled.Second recess 119 can be blind hole or through-hole, this is practical Novel second recess 119 is through-hole.Second recess 119 can be such that the plastic wrapper 12 wraps with metalwork 11 Wrap up in stronger, structure is more stable.

Compared with prior art, the utility model is by being stamped and formed out the first punching hole 112 and the second punching for metalwork 11 Hole 113 is pressed, then is each extended at the edge of first punching hole 112 and second punching hole 113 and is bent to form first Positioning region 114 and the second positioning region 115, first punching hole 112 and the second punching hole 113 can for filling plastic so that The plastic wrapper 12 wraps up stronger with metalwork 11.And first positioning region 114 and the second positioning region 115 are due to stretching 11 surface of metalwork out, after plastic wraps, first positioning region 114 and the second positioning region 115 can be used as limit Part limits the plastic wrapper 12, and the plastic wrapper 12 is prevented to be detached from the metalwork 11 or when impacting larger Opposing metallic part 11 shifts.In addition, first positioning region 114 and the second positioning region 115 are directly facing pulley assembly 100 The impact of sliding support 2, thus it can avoid plastic wrapper 12 from bearing excessive directly against the impact of sliding support 2 Impact force；Therefore, the intensity of entire metalwork 11 is very big, impact resistance is strong, effectively prolongs the service life.

In addition, as shown in fig. 6, the first positioning region 114 described in the utility model and the second positioning region 115 can not with it is described Metalwork 11 is vertically arranged, or the surface of the relatively described metalwork 11 is inclined to set, and with the metalwork 11 Surface forms an angle α filled for the plastic wrapper 12.As shown in fig. 7, first positioning region 114 and the second positioning region 115 other two edge can also the surface of the relatively described metalwork 11 be inclined to set, and the table with the metalwork 11 Face forms an acute angles beta filled for the plastic wrapper 12, is also able to achieve positioning and shock proof ability in this way.

Above disclosed is only the preferred embodiments of the utility model, cannot limit the utility model certainly with this Interest field, therefore equivalent variations made according to the patent scope of the utility model still falls within the utility model and covered Range.

Claims (10)

1. a kind of pulley bracket, it is characterised in that: including metalwork and plastic wrapper, the surface of the metalwork is equipped with the first punching The edge of pressure hole and the second punching hole, first punching hole and second punching hole, which each extends over and is bent to form first, to be determined Position portion and the second positioning region；The plastic wrapper is coated on outside the metalwork, and the plastic wrapper is filled in described first In punching hole and second punching hole, and it is wrapped in outside first positioning region and second positioning region.

2. pulley bracket as described in claim 1, it is characterised in that: first punching hole and the second punching hole are set in dislocation It sets.

3. pulley bracket as claimed in claim 2, it is characterised in that: the length extending direction and second of first positioning region The length extending direction of positioning region is identical.

4. pulley bracket as described in claim 1, it is characterised in that: the side of first positioning region and the second positioning region tool There is the first recess for plastic wrapper filling.

5. pulley bracket as described in claim 1, it is characterised in that: the lower edge of the metalwork is equipped with for outside the plastics Cover the curved opening of filling.

6. pulley bracket as claimed in claim 5, it is characterised in that: the edge of the curved opening is equipped with chamfering.

7. pulley bracket as described in claim 1, it is characterised in that: the top edge of the metalwork is equipped with for outside the plastics Cover the back-off of filling.

8. pulley bracket as described in claim 1, it is characterised in that: the surface of the metalwork, which has, supplies the plastic wrapper Second recess of filling.

9. pulley bracket as described in claim 1, it is characterised in that: the side phase of first positioning region and the second positioning region It is inclined to set to the surface of the metalwork, and forms a folder filled for the plastic wrapper with the surface of the metalwork Angle.

10. a kind of pulley assembly, it is characterised in that: including sliding support, idler wheel, adjusting screw, elastic component and claim 1 to 9 described in any item pulley brackets, the surface of the sliding support upwardly extend to form hollow sleeve, and the idler wheel is articulated in described Hollow sleeve, the sliding support are slidingly arranged at the pulley bracket, and the elastic component is set to the pulley bracket and institute It states between sliding support, the adjusting screw is threadably connected to the pulley bracket and is resisted against on the sliding support.