CN113833372A - Needle type hinge easy to install - Google Patents

Abstract

The invention discloses an easily-installed needle type hinge which comprises a fixed seat and a movable seat, wherein the fixed seat is connected with an upper hinge needle and a lower hinge needle in a sliding mode, a compression spring used for pushing the upper hinge needle and the lower hinge needle to protrude out of the fixed seat is arranged between the upper hinge needle and the lower hinge needle, a mounting groove is formed in the movable seat, a hinge hole is formed in the movable seat, the hinge hole is communicated with the mounting groove, one end of the fixed seat is arranged in the mounting groove, the upper hinge needle and the lower hinge needle are respectively in adaptive connection with the corresponding hinge holes, the movable seat is hinged with the fixed seat through the upper hinge needle and the lower hinge needle, and the upper hinge needle and the lower hinge needle can retract into the fixed seat through external force. The needle type hinge is simple and rapid in installation process, reliable, durable and attractive.

Description

Needle type hinge easy to install

Technical Field

The invention relates to the field of hinges for furniture, in particular to a needle type hinge easy to install.

Background

Currently, the needle-type hinge in the prior art is a furniture hinge with a needle-shaped hinge shaft, as shown in fig. 15, the needle-type hinge in the prior art includes a hinge seat 99 for fixing relative to the cabinet body and an aluminum profile 97 for mounting and connecting with the cabinet door, and the aluminum profile 97 is hinged to the hinge seat 99 through a hinge pin 98. As shown in fig. 15, in the process of mounting the aluminum profile 97 and the hinge base 99, one end of the hinge base 99 is firstly inserted into the mounting groove of the aluminum profile 97, the aluminum profile 97 is formed with a mounting hole which penetrates the entire aluminum profile 97, so that the hinge pin 98 can be inserted into the mounting hole and penetrate through the end of the hinge base 99, the upper end of the hinge pin 98 is formed with an external thread, the upper end orifice of the mounting hole is processed with an internal thread, and the external thread of the hinge pin 98 is connected with the internal thread of the mounting hole, so as to prevent the hinge pin 98 from sliding off, but after being used for a long time, the internal thread of the aluminum profile 97 is easily damaged, so that the hinge pin 98 is easily slid off, and the hinge pin loses the hinge function; in the process of installing the hinge pin 98, since the hinge pin 98 is inserted from the outside of the aluminum profile 97, it is difficult to install the hinge pin 98 in the case of insufficient installation space in the actual installation process; moreover, machining the internal threads into the mounting opening of the aluminum profile 97 is time consuming and difficult. Therefore, there is a need for an improvement in the needle hinge of the prior art.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the needle type hinge which is easy to install and simple and quick in installation process.

The purpose of the invention is realized by the following technical scheme.

The invention discloses an easily-installed needle type hinge, which comprises a fixed seat and a movable seat; wherein, fixing base sliding connection has last articulated needle and articulated needle down, go up articulated needle with be equipped with down between the articulated needle and be used for promoting go up articulated needle and articulated needle protrusion down in compression spring outside the fixing base, the sliding seat is formed with the mounting groove, the sliding seat is formed with the hinge hole, the hinge hole with the mounting groove intercommunication sets up, the one end setting of fixing base is in the mounting groove, go up articulated needle and articulated needle respectively with corresponding down the hinge hole adaptation is connected, the sliding seat with the fixing base passes through go up articulated needle and articulated needle is articulated down, go up articulated needle and articulated needle can pass through external force down to retract in the fixing base.

Preferably, the fixing seat is formed with a sliding groove, the inner end of the upper hinge pin and the inner end of the lower hinge pin are respectively connected with a sliding block, the sliding blocks are connected with the sliding groove in a sliding manner, and the upper end and the lower end of the compression spring are respectively connected with the corresponding sliding blocks in an attached manner.

Preferably, the slider is formed with a positioning convex column, and the upper and lower ends of the compression spring are respectively sleeved outside the corresponding positioning convex column in a matching manner.

Preferably, the slider is formed with T type groove, the inner of going up the hinge needle and the inner of lower hinge needle respectively with corresponding T type groove lock joint.

Preferably, the sliding groove is correspondingly provided with a cover, the cover comprises a cover part and a blocking strip part used for correspondingly blocking the sliding blocks, the blocking strip part is arranged between the two sliding blocks, and the blocking strip part is respectively connected with the corresponding sliding blocks in an attached mode.

Preferably, the cover is fitted into the chute.

Preferably, the stop strip portion is formed with a positioning groove, the slider is formed with a positioning convex strip, and the positioning groove is connected with the corresponding positioning convex strip in an adaptive manner.

Preferably, the upper hinge pin and the lower hinge pin are respectively sleeved with a bushing correspondingly, and the bushings are installed in the fixed seat.

Preferably, the needle type hinge further comprises an installation seat, a sliding seat is arranged in the installation seat, the other end, corresponding to the fixed seat, of the fixed seat is arranged in the sliding seat, the fixed seat is hinged to the sliding seat through a pin shaft, a front and back positioning screw is connected to the fixed seat in a threaded manner, the front and back positioning screw is rotatably connected to the sliding seat, a jacking screw is connected to the fixed seat in a threaded manner, the end portion of the jacking screw is attached to the sliding seat in an attached manner, and the jacking screw is arranged between the pin shaft and the front and back positioning screw.

Compared with the prior art, the invention has the beneficial effects that: the upper hinge needle and the lower hinge needle are connected with the fixing seat in a sliding mode through the arrangement of the fixing seat, a compression spring used for pushing the upper hinge needle and the lower hinge needle to protrude out of the fixing seat is arranged between the upper hinge needle and the lower hinge needle, the movable seat is provided with a mounting groove, a hinge hole is formed in the movable seat and communicated with the mounting groove, one end of the fixing seat is arranged in the mounting groove, the upper hinge needle and the lower hinge needle are respectively connected with the corresponding hinge holes in an adaptive mode, the movable seat is hinged with the fixing seat through the upper hinge needle and the lower hinge needle, and the upper hinge needle and the lower hinge needle can retract into the fixing seat through external force, so that the installation process of the needle type hinge is simple and rapid.

Drawings

Fig. 1 is a schematic perspective view of a needle hinge according to the present invention.

Fig. 2 is an exploded view of the needle hinge of the present invention.

Fig. 3 is a schematic perspective view of the movable seat of the present invention.

Fig. 4 is an exploded view of the fixing base of the present invention.

Fig. 5 is a perspective view of the upper hinge pin of the present invention.

Fig. 6 is a schematic perspective view of the slider according to the present invention.

Fig. 7 is a schematic back perspective view of the cap of the present invention.

Fig. 8 is a schematic top view of the fixing base of the present invention.

Fig. 9 is a schematic sectional view taken along line a-a of fig. 8.

Fig. 10 is a schematic sectional view along the direction B-B in fig. 8.

Fig. 11 is a perspective view of the needle hinge of the present invention with the decorative cover and the movable base removed.

Fig. 12 is an exploded view of the needle hinge of the present invention with the movable mount removed.

Fig. 13 is a front view of the needle hinge of the present invention with the movable mount removed.

Fig. 14 is a schematic sectional view along the direction C-C in fig. 13.

Fig. 15 is an exploded view of a prior art needle hinge.

Description of reference numerals: 1-a first positioning eccentric shaft; 2-second position-adjusting eccentric shaft; 3-a slide seat; 4-fixing the base; 401-up-down positioning the slot; 402-a first screw hole; 403-a second screw hole; 404-a chute; 41-compression spring; 42-a slide block; 4201-T-shaped groove; 4202-positioning the boss; 4203-positioning ribs; 43-a bushing; 44-a lid; 441-a cover portion; 442-bar sections; 4421-a positioning groove; 5-a pin shaft; 6-front and back positioning screws; 71-upper hinge pin; 72-lower articulating needle; 701-fastening a head part; 7011-journal portion; 8-a movable seat; 801-hinge hole; 81-mounting grooves; 9-a mounting seat; 10-tightening the screw; 11-a decorative cover; 99-hinge base; 98-articulation pin; 97-aluminum profile.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

It should be noted that the terms "upper", "lower", "left", "right", "front" and "rear" used hereinafter to describe the orientation are all in terms of the visual orientation of FIG. 1.

The needle type hinge easy to install comprises a fixed seat 4 and a movable seat 8, wherein the fixed seat 4 is used for being fixed relative to a cabinet body, and the movable seat 8 is used for being connected with a cabinet door in an installing mode, as shown in figures 1 and 2.

As shown in fig. 4, 8 and 9, the fixing seat 4 is slidably connected with an upper hinge pin 71 and a lower hinge pin 72, a compression spring 41 for pushing the upper hinge pin 71 and the lower hinge pin 72 to protrude out of the fixing seat 4 is disposed between the upper hinge pin 71 and the lower hinge pin 72, as shown in fig. 3, the movable seat 8 is formed with an installation groove 81, the movable seat 8 is formed with a hinge hole 801, the hinge hole 801 is communicated with the installation groove 81, the movable seat 8 can be made of an aluminum profile, the hinge hole 801 is an aluminum profile extrusion molding structure, so the hinge hole 801 can be arranged to penetrate through the whole movable seat 8, and the installation groove 81 can be formed by machining.

As shown in fig. 1 and 2, one end of the fixing seat 4 is disposed in the mounting groove 81, the upper hinge pin 71 and the lower hinge pin 72 are respectively connected to the corresponding hinge holes 801 in an adaptive manner, and when the movable seat 8 is made of an aluminum profile, the hinge holes 801 respectively connected to the upper hinge pin 71 and the lower hinge pin 72 are actually the same through hole. The movable seat 8 is hinged to the fixed seat 4 through an upper hinge pin 71 and a lower hinge pin 72, in other words, the upper hinge pin 71 and the lower hinge pin 72 are coaxially arranged. As shown in fig. 2, in the process of installing the needle hinge of the present invention, the upper hinge needle 71 is first pressed downward, so that the upper hinge needle 71 moves downward, and the lower hinge pin 72 is pressed upward, so that the lower hinge pin 72 moves upward, in the process, the upper hinge pin 71 and the lower hinge pin 72 elastically compress and deform the compression spring 41, that is, the upper hinge pin 71 and the lower hinge pin 72 can retract into the fixing seat 4 by external force, then, the right end of the fixed seat 4 is inserted into the mounting groove 81, when the upper hinge pin 71 and the lower hinge pin 72 are moved to the position aligned with the hinge hole 801, the elastic force of the compression spring 41 ejects the upper and lower hinge pins 71 and 72 respectively, the upper hinge pin 71 and the lower hinge pin 72 are inserted into the hinge hole 801, so that the hinge mounting of the movable seat 8 and the fixed seat 4 is simply and quickly completed, and the need of processing internal threads at the orifice of the hinge hole 801 is avoided; compared with the prior art, the retraction and the ejection of the upper hinge pin 71 and the lower hinge pin 72 are completed in the space range corresponding to the mounting groove 81, so that the fixed seat 4 and the movable seat 8 can be conveniently mounted even in an environment with a narrow operation space.

Further, as shown in fig. 4, the fixing seat 4 is formed with a sliding slot 404, as shown in fig. 9, the inner end of the upper hinge pin 71 (i.e. the lower end of the upper hinge pin 71) and the inner end of the lower hinge pin 72 (i.e. the upper end of the lower hinge pin 72) are respectively connected with the sliding blocks 42, that is, the number of the sliding blocks 42 is two, the sliding blocks 42 are slidably connected with the sliding slot 404, that is, the sliding blocks 42 are disposed in the sliding slot 404, and the sliding blocks 42 can slide in the sliding slot 404 in the up-down direction, the upper and lower ends of the compression springs 41 are respectively connected with the corresponding sliding blocks 42 in an abutting manner, for example, when the upper hinge pin 71 is pressed down, the upper hinge pin 71 pushes down the sliding blocks 42 located at the upper position, the sliding blocks 42 located at the upper position presses down the compression springs 41 to elastically compress and deform the compression springs 41, and after the external force of pressing the upper hinge pin 71 or the lower hinge pin 72 is removed, due to the provision of the sliding blocks 42, the direction of the outward thrust applied to the upper hinge pin 71 and the lower hinge pin 72 is stabilized to be along the up-down direction, which is beneficial to the upper hinge pin 71 and the lower hinge pin 72 to flexibly recover to protrude out of the fixing base 4.

Further, as shown in fig. 6, the slider 42 is formed with a positioning boss 4202, and as shown in fig. 9, the upper and lower ends of the compression spring 41 are respectively fitted and sleeved outside the corresponding positioning boss 4202, so as to prevent the compression spring 41 from shifting during elastic compression deformation or elastic return, and to make the compression spring 41 work stably.

Further, as shown in fig. 6, the slider 42 is formed with a T-shaped groove 4201, as shown in fig. 9, the inner end of the upper hinge pin 71 (i.e., the lower end of the upper hinge pin 71) and the inner end of the lower hinge pin 72 (i.e., the upper end of the lower hinge pin 72) are respectively fastened to the corresponding T-shaped groove 4201, for example, as shown in fig. 5, the lower end of the upper hinge pin 71 is formed with a fastening head 701, and the diameter of the fastening head 701 is larger than that of the collar 7011, as shown in fig. 9, so that the fastening head 701 can fasten the corresponding T-shaped groove 4201, and the above arrangement makes the connection structure between the upper hinge pin 71 and the lower hinge pin 72 and the corresponding slider 42 simple and reliable. In the state shown in fig. 10, it is assumed that when the upper hinge pin 71 or the lower hinge pin 72 is pulled out, since the inner end of the upper hinge pin 71 and the inner end of the lower hinge pin 72 are respectively fastened to the corresponding T-shaped groove 4201, the upper hinge pin 71 and the lower hinge pin 72 can drive the corresponding slider 42 to move out, but due to the blocking effect of the sliding slot 404 on the slider 42, neither the upper hinge pin 71 nor the lower hinge pin 72 can be pulled out of the fixing base 4.

Further, as shown in fig. 4 and 10, the sliding groove 404 is correspondingly provided with a cover 44, as shown in fig. 7, the cover 44 includes a cover portion 441 and a blocking strip portion 442 for correspondingly blocking the sliding block 42, as shown in fig. 10, the blocking strip 442 is disposed between two sliding blocks 42, specifically, the blocking strip 442 is disposed between one sliding block 42 connected to the upper hinge pin 71 and one sliding block 42 connected to the lower hinge pin 72, the blocking strip 442 is respectively connected to the corresponding sliding blocks 42, so that in the state shown in fig. 10, when the upper hinge pin 71 and the lower hinge pin 72 are respectively moved into the fixing base 4, since the sliders 42 are blocked by the corresponding barrier portions 442, the upper hinge pin 71 and the lower hinge pin 72 can maintain the extended state shown in fig. 10, thereby preventing the upper hinge pin 71 and the lower hinge pin 72 from being accidentally retracted during use, and improving the reliability of the hinge of the present invention. It should be noted that, in the process of installing the needle hinge of the present invention, the cover 44 must be removed, the upper hinge pin 71 and the lower hinge pin 72 are retracted inward, the installation seat 4 is installed in the installation groove 81 of the movable seat 8, after the upper hinge pin 71 and the lower hinge pin 72 are ejected and inserted into the hinge hole 801, the cover 44 is installed back to the sliding groove 404, so that the blocking strip 442 corresponds to the blocking slider 42.

Further, as shown in fig. 1, 4 and 10, the cover 441 is fittingly inserted into the sliding groove 404, in other words, visually, the cover 44 fills the sliding groove 404, which is good for aesthetic appearance, and the cover 441 is also positioned by the sliding groove 404, and the cover 441 can be in interference fit with the edge of the sliding groove 404, so that the cover 44 is not easily removed.

Further, as shown in fig. 7, the stopper portion 442 is formed with positioning grooves 4421, as shown in fig. 6, the slider 42 is formed with positioning ribs 4203, as shown in fig. 10, and the positioning grooves 4421 are fittingly connected with the corresponding positioning ribs 4203, so that the cover 44 and the slider 42 are mutually positioned in the front-rear direction, which is advantageous for improving the reliability of the hinge of the present invention.

Further, as shown in fig. 4 and 9, the upper hinge pin 71 and the lower hinge pin 72 are respectively and correspondingly sleeved with the bushing 43, the bushing 43 is installed in the fixing seat 4, the bushing 43 may be made of nylon or copper, the bushing 43 and the fixing seat 4 may be in interference fit, the outer end of the bushing 43 may be formed with a flange portion, the upper side surface and the lower side surface of the fixing seat 4 are respectively connected with the corresponding flange portions in an abutting manner, and by arranging the bushing 43, the friction resistance on the upper hinge pin 71 and the lower hinge pin 72 is favorably reduced, and the upper hinge pin 71 and the lower hinge pin 72 are favorably flexible.

The process of assembling the upper and lower hinge pins 71 and 72 is as follows: as shown in fig. 9, the upper hinge pin 71 is assembled and connected with the slider 42, then the upper hinge pin 71 and the corresponding slider 42 are inserted into the sliding slot 404, and then the slider 42 is pushed upward, so that the upper hinge pin 71 penetrates out of the fixed seat 4; next, the lower hinge pin 72 is inserted into the mounting seat 4 from the outside to the inside, and then the T-shaped groove 4201 of the other slider 42 is sleeved on the upper end portion of the lower hinge pin 72, as can be seen from fig. 6, the T-shaped groove 4201 of the slider 42 may be a blind groove structure, that is, the T-shaped groove 4201 may not penetrate through the slider 42, so that after the assembly is completed, the two sliders 42 are turned 180 ° to each other; then, the compression spring 41 is inserted between the two sliders 42 in an elastically deformed manner, and the upper end and the lower end of the compression spring 41 are respectively and correspondingly sleeved outside the positioning convex column 4202 of the slider 42; then, the upper and lower bushings 43 are respectively inserted into the fixed seat 4 from outside to inside; finally, the cover 44 is installed, and when the barrier strip 442 is inserted between the two sliders 42, the barrier strip 442 is elastically deformed by bending inward, so that the positioning rib 4203 can slide into the corresponding positioning slot 4421; as shown in fig. 7, the edge of the cover part 441 of the cover 44 is formed with a notch, so that when the cover 44 needs to be removed, the cover 44 can be pried out and removed by prying the notch with a screwdriver.

In some embodiments, as shown in fig. 11 to 14, the needle hinge of the present invention further includes a mounting seat 9, the mounting seat 9 is configured to be fixedly connected to the cabinet through corresponding screws, a sliding seat 3 is disposed in the mounting seat 9, specifically, a sleeve cavity is formed at the back of the mounting seat 9, the sliding seat 3 is configured to be disposed in the sleeve cavity, and the sliding seat 3 is capable of moving in the left-right direction relative to the mounting seat 9, as shown in fig. 14, two ends of the first positioning eccentric shaft 1, which are eccentrically disposed from each other, are respectively connected to the mounting seat 9 and the sliding block 3, a hole of the mounting seat 9, which is connected to the first positioning eccentric shaft 1, is a circular hole, as shown in fig. 12, and a hole of the sliding block 3, which is connected to the first positioning eccentric shaft 1, is a long hole extending in the up-down direction. The other end corresponding to the fixed seat 4 is arranged in the sliding seat 3, the fixed seat 4 is hinged with the sliding seat 3 through a pin shaft 5, the fixed seat 4 is screwed with a front and back positioning screw 6, specifically, as shown in fig. 4, the fixed seat 4 is formed with a first screw hole 402, the front and back positioning screw 6 is connected with the first screw hole 402, the front and back positioning screw 6 is rotatably connected with the sliding seat 3, specifically, the front and back positioning screw 6 is formed with a ring groove, the sliding seat 3 is clamped with the ring groove, so that the front and back positioning screw 6 can rotate relative to the sliding seat 3 but is limited axially by the sliding seat 3, as shown in fig. 14, the fixed seat 4 is screwed with a jacking screw 10, as shown in fig. 4, specifically, the fixed seat 4 is formed with a second screw hole 403, the jacking screw 10 is connected with the second screw hole 403, and the end of the jacking screw 10 (specifically, the rear end of the jacking screw 10) is connected with the sliding seat 3 in a leaning manner, the jacking screw 10 is arranged between the pin shaft 5 and the front and back position adjusting screw 6. The two ends of the second positioning eccentric shaft 2, which are eccentrically arranged, are respectively connected with the fixing base 4 and the sliding block 3, specifically, as shown in fig. 4, the vertical positioning long hole 401 of the fixing base 4 is connected with the second positioning eccentric shaft 2, and the vertical positioning long hole 401 extends along the left-right direction. When the first positioning eccentric shaft 1 is rotated, the first positioning eccentric shaft 1 can drive the sliding seat 3 to move and position along the left-right direction, and the fixed seat 4 can position along the left-right direction because the fixed seat 4 is hinged with the sliding seat 3 through the pin shaft 5; when the second positioning eccentric shaft 2 is rotated, the second positioning eccentric shaft 2 can drive the fixed seat 4 to move up and down for positioning; when the front and back positioning screws 6 are rotated, the front and back positioning screws 6 are subjected to the axial limiting action of the sliding seat 3, so that the part of the fixed seat 4 connected with the second positioning eccentric shaft 2 moves forwards or backwards, the fixed seat 4 is actually swung and positioned because the fixed seat 4 is hinged with the sliding seat 3 through the pin shaft 5, when the positioning of the fixed seat 4 is finished, the top fastening screw 10 is screwed, the thrust generated by the top fastening screw 10 can pull the fixed seat 4 away from the sliding seat 3, but because the fixed seat 4 is hinged with the sliding seat 3 through the pin shaft 5, the thrust generated by the top fastening screw 10 can enable the pin shaft 5 to be simultaneously clung to the fixed seat 4 and the sliding seat 3, the thrust generated by the top fastening screw 10 can enable the front and back positioning screws 6 to be simultaneously clung to the fixed seat 4 and the sliding seat 3, so that the gap between the fixed seat 4 and the sliding seat 3 is eliminated, and the static friction force between the fixed seat 4 and the sliding seat 3 is greatly increased, make fixing base 4 and slide 3 complete relatively fixed, avoid the cabinet door to appear not hard up phenomenon in-service use.

As shown in fig. 1 and 12, the fixing base 9 is further covered with a decoration cover 11, and the decoration cover 11 covers the first positioning eccentric shaft 1, the second positioning eccentric shaft 2, the tightening screw 10 and the front and rear positioning screw 6, so as to be good for beauty.

Claims (9)

1. A needle type hinge easy to install comprises a fixed seat (4) and a movable seat (8); the method is characterized in that: the fixing seat (4) is connected with an upper hinge needle (71) and a lower hinge needle (72) in a sliding manner, a compression spring (41) used for pushing the upper hinge needle (71) and the lower hinge needle (72) to protrude out of the fixing seat (4) is arranged between the upper hinge needle (71) and the lower hinge needle (72), an installation groove (81) is formed in the movable seat (8), a hinge hole (801) is formed in the movable seat (8), the hinge hole (801) is communicated with the installation groove (81), one end of the fixing seat (4) is arranged in the installation groove (81), the upper hinge needle (71) and the lower hinge needle (72) are respectively connected with the corresponding hinge hole (801) in an adaptive manner, and the movable seat (8) is hinged with the fixing seat (4) through the upper hinge needle (71) and the lower hinge needle (72), the upper hinge needle (71) and the lower hinge needle (72) can retract into the fixed seat (4) through external force.

2. Needle hinge easy to mount according to claim 1, characterized in that: the fixing seat (4) is provided with a sliding groove (404), the inner end of the upper hinge needle (71) and the inner end of the lower hinge needle (72) are respectively connected with a sliding block (42), the sliding block (42) is in sliding connection with the sliding groove (404), and the upper end and the lower end of the compression spring (41) are respectively connected with the corresponding sliding block (42) in an attached mode.

3. Needle hinge easy to mount according to claim 2, characterized in that: the slider (42) is provided with a positioning convex column (4202), and the upper end and the lower end of the compression spring (41) are respectively sleeved outside the corresponding positioning convex column (4202) in a matching manner.

4. Needle hinge easy to mount according to claim 3, characterized in that: the slider (42) is provided with a T-shaped groove (4201), and the inner end of the upper hinge pin (71) and the inner end of the lower hinge pin (72) are respectively buckled with the corresponding T-shaped groove (4201).

5. Needle hinge easy to mount according to claim 4, characterized in that: the sliding grooves (404) are correspondingly provided with covers (44), each cover (44) comprises a cover portion (441) and a blocking strip portion (442) used for correspondingly blocking the sliding blocks (42), each blocking strip portion (442) is arranged between every two sliding blocks (42), and the blocking strip portions (442) are respectively connected with the corresponding sliding blocks (42) in an abutting mode.

6. Needle hinge easy to mount according to claim 5, characterized in that: the cover part (441) is fittingly embedded in the chute (404).

7. Needle hinge easy to mount according to claim 6, characterized in that: the blocking strip portion (442) is provided with positioning grooves (4421), the slider (42) is provided with positioning convex strips (4203), and the positioning grooves (4421) are matched and connected with the corresponding positioning convex strips (4203).

8. Needle hinge easy to mount according to claim 1, characterized in that: the upper hinge needle (71) and the lower hinge needle (72) are respectively and correspondingly sleeved with a bushing (43), and the bushing (43) is installed in the fixed seat (4).

9. Needle hinge easy to mount according to claim 1, characterized in that: still include mount pad (9), be equipped with slide (3) in mount pad (9), another tip setting that fixing base (4) is corresponding is in slide (3), fixing base (4) with slide (3) are articulated through round pin axle (5), positioning screw (6) around fixing base (4) spiro union, positioning screw (6) around the front and back with slide (3) rotate to be connected, fixing base (4) spiro union has top lag screw (10), the tip of top lag screw (10) with slide (3) are pasted and are leaned on and connect, top lag screw (10) set up round pin axle (5) with between the front and back positioning screw (6).

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