CN112796606A

CN112796606A - Cabinet door rebounding device

Info

Publication number: CN112796606A
Application number: CN202110116028.1A
Authority: CN
Inventors: 张宏彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-05-14

Abstract

The cabinet door rebounder provided by the invention adopts the ratchet wheel set and the guide strip to be matched to replace the clamping hook and the closed-loop sliding groove, so that the situation that the cabinet door rebounder fails due to the fatigue of parts can not occur in long-term use, and the service life is longer; the ratchet wheel set is arranged in the telescopic cylinder by the matching of the telescopic cylinder and the telescopic rod, so that the ratchet wheel set is prevented from being invaded by the external environment, and the ratchet wheel set has a wider application range; for the closed loop spout, the ratchet group is processed more easily, and for the assembly of pothook, the assembly of ratchet group and all kinds of springs is simpler to improve assembly efficiency and then reduced the processing cost of cabinet door bounce-back ware.

Description

Cabinet door rebounding device

Technical Field

The invention relates to the field of furniture accessories, in particular to a cabinet door rebounder.

Background

The cabinet door rebounder is an accessory which can be frequently used on furniture, a handle is not arranged outside the existing cabinet door for not influencing the appearance cabinet, the cabinet door can be difficult to open due to the design, the cabinet door rebounder is used for opening and closing the furniture such as a cabinet and a drawer, the cabinet door rebounder is installed in the cabinet, the handle is not needed when the cabinet door is opened or closed, and the door can be opened or closed only by pressing the door plate.

In the prior art, as for the door rebounders provided in application nos. 201920588785.7, 201720711836.1, 201822088391.3 and 201920342368.4, the telescopic principle of the telescopic device is to limit the position of the sliding part by different sliding positions of the hook in the closed-loop sliding slot, so as to achieve the purpose of pressing the rebounder to open or close.

The cabinet door rebounder has the following defects:

(1) the clamping hook is easy to fatigue in the long-term sliding and clamping process, so that the rebound device of the cabinet door is easy to lose efficacy;

(2) if the cabinet door rebounder is installed in the cabinet, due to the existence of kitchen oil smoke, oil dirt is easily accumulated in the sliding groove of the cabinet door rebounder, so that the resistance of the cabinet door rebounder is increased in the pressing process, and even the cabinet door rebounder cannot be rebounded;

(3) in order to realize that cabinet door rebounder all realizes popping out or contracting at every turn of pressing, need carry out special design to the route of inside spout, and then promoted cabinet door rebounder's the processing degree of difficulty and manufacturing cost.

Disclosure of Invention

The invention aims to provide a cabinet door rebounder which has the advantages of longer service life, wider application scenes and lower processing cost.

A cabinet door rebounder comprises a telescopic device and a fixed seat used for installing the telescopic device in a cabinet, and is characterized in that the telescopic device comprises a telescopic cylinder, a telescopic rod which is installed in the telescopic cylinder and is limited by the telescopic cylinder in a telescopic stroke, a magnet fixed at the top end of the telescopic rod, a ratchet wheel group positioned at the bottom of the telescopic rod, and a compression spring arranged between the bottom of the ratchet wheel group and the bottom wall of the telescopic cylinder;

the ratchet wheel set is formed by connecting a pair of mutually meshed ratchet wheels in series through a shaft rod, the side surfaces of the two ratchet wheels are circumferentially provided with at least three guide grooves which extend in the direction parallel to the shaft rod, the inner wall of the telescopic cylinder is provided with guide strips which are matched with the guide grooves and are parallel to the shaft rod, and the bottoms of the guide strips are provided with inclined surfaces corresponding to the tooth surfaces of the teeth of the locking ratchet wheel;

the two ratchet wheels are respectively a push rod ratchet wheel and a locking ratchet wheel, the corresponding guide grooves of the two ratchet wheels are respectively a push rod guide groove and a locking guide groove, and the top and the bottom of the shaft rod are both provided with limiting parts for preventing the push rod ratchet wheel from falling out of the shaft rod when the locking ratchet wheel jacks the push rod ratchet wheel;

the push rod ratchet wheel is fixed with the telescopic rod, and when the telescopic rod is pressed, the two ratchet wheels rotate relatively, so that the guide grooves of the two ratchet wheels are in a straight line, the ratchet wheel group moves along the guide strip to push the telescopic rod to eject, or the guide strip is embedded between the gear teeth of the locking ratchet wheel, and the locking ratchet wheel abuts against the guide strip to prevent the telescopic rod from ejecting;

the telescopic link is inside cavity to place one and prevent scurrying the spring, the spacing portion at axostylus axostyle top stretches into in the telescopic link, the spacing portion at axostylus axostyle top is fixed in to the bottom of preventing scurrying the spring.

Because the telescopic rod is fixed with the push rod ratchet wheel, when the guide strip is embedded between the locking gear teeth and the pushing gear teeth and is restrained by the pushing gear teeth, the telescopic rod can slightly move up and down along the shaft rod, so that a cabinet door provided with the cabinet door rebounder cannot be closed tightly.

The cabinet door rebounder can be further improved as follows:

the shaft lever is a rivet, the tip of the rivet is positioned at the bottom end of the shaft lever and serves as a limiting part for fixing the compression spring, and the limiting part at the top of the rivet is used for fixing the anti-channeling spring.

The limiting part at the top of the rivet is an object placing part for placing steel balls, and the steel balls are used for fixing the anti-channeling spring.

The push rod ratchet with telescopic link integrated into one piece, a nut is connect soon at the telescopic link top, the top of nut is used for placing magnet.

The top of the push rod ratchet wheel is provided with an external threaded pipe coaxial with the push rod ratchet wheel, the inner side wall of the bottom of the telescopic rod is provided with a corresponding internal thread, the telescopic rod is connected onto the push rod ratchet wheel in a rotating mode, the top of the telescopic rod is provided with a placing groove used for placing the magnet, and the magnet extends out of the telescopic cylinder upwards.

The surface of the joint of the push rod ratchet wheel and the telescopic rod is circumferentially provided with reverse teeth.

The telescopic cylinder consists of a cylinder body and a cylinder cap positioned at the bottom of the cylinder body, and the cylinder body is screwed with the cylinder cap through threads.

An inward extending shoulder is arranged at the opening at the top of the telescopic cylinder and used for restraining the telescopic rod to prevent the telescopic rod from being separated from the telescopic cylinder.

Compared with the prior art, the invention has the following advantages:

(1) the ratchet wheel set and the guide strip are matched to replace a clamping hook and a closed-loop sliding groove, so that the situation that a cabinet door rebounder fails due to fatigue of parts cannot occur in long-term use, and the service life is longer;

(2) the ratchet wheel set is arranged in the telescopic cylinder by the matching of the telescopic cylinder and the telescopic rod, so that the ratchet wheel set is prevented from being invaded by the external environment, and the ratchet wheel set has a wider application range;

(3) for the closed loop spout, the ratchet group is processed more easily, and for the assembly of pothook, the assembly of ratchet group and all kinds of springs is simpler to improve assembly efficiency and then reduced the processing cost of cabinet door bounce-back ware.

Drawings

In order to more clearly explain the technical solution of the present invention, the drawings used in the embodiments will be briefly described below.

FIG. 1 is a perspective view of a ratchet set in a locked state;

FIG. 2 is a schematic perspective view of the ratchet set in an unlocked state;

FIG. 3 is a front view of the ratchet set in a locked condition;

FIG. 4 is a front view of the ratchet set during transition from the locked state to the unlocked state;

FIG. 5 is a front view of the ratchet set in the unlocked state;

FIG. 6 is a front view of the ratchet set in preparation for transitioning from the unlocked state to the locked state;

FIG. 7 is a front view of the ratchet set during transition from the unlocked to the locked position;

FIG. 8 is a perspective view of the cabinet door rebounder of the first embodiment;

FIG. 9 is a cross-sectional view of the retractable device in the cabinet door rebounder according to one embodiment;

FIG. 10 is a perspective view of the cabinet door rebounder of the third embodiment;

fig. 11 is a sectional view of the second and third embodiments of the cabinet door rebounder in which the retractable rod of the retractable device is in the ejected state;

fig. 12 is a sectional view of the retractable rod of the retractable device of the cabinet door rebounder of the second and third embodiments in a retracted state;

FIG. 13 is a perspective view of the cabinet door rebounder of the fourth embodiment

Fig. 14 is a cross-sectional view of the retractable rod of the retractable device in the cabinet door rebounder of the second embodiment in an ejected state;

fig. 15 is a perspective view of the second and fourth embodiments of the present disclosure, wherein the telescopic rod of the telescopic device is in a retracted state;

FIG. 16 is an exploded view of the fifth wheel and the ratchet set of the embodiment.

To facilitate an understanding of the invention, the corresponding numbering of the components and/or features found in the drawings is provided as follows:

1. a telescoping device; 2. a fixed seat; 3. a magnet; 10. a ratchet wheel set; 101. locking the ratchet wheel; 1011. locking gear teeth; 1012. pushing gear teeth; 102. a push rod ratchet; 1021. clamping gear teeth; 1022. an externally threaded tube; 21. a shaft lever; 200. a limiting part; 22. riveting; 201. a tip portion; 202. an article placing part; 203. steel balls; 301. a push rod guide groove; 302. a locking guide groove; 40. a guide strip; 400. a bevel; 50. a compression spring; 60. a run-through prevention spring; 70. a telescopic rod; 700. a nut; 80. a telescopic cylinder; 800. a shoulder is formed; 801. a barrel body; 802. a cartridge cap; 90. a reverse tooth;

it should be understood that the drawings are not necessarily drawn to scale. It is obvious that the above-mentioned drawings are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained as such without inventive effort.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the ratchet wheel set 10 is formed by a pair of ratchet wheels meshed with each other and connected in series through a shaft rod 21 (not shown in the figure), the side surfaces of the two ratchet wheels are circumferentially provided with three guide grooves extending in parallel with the shaft rod 21, the two ratchet wheels are respectively a push rod ratchet wheel 102 and a locking ratchet wheel 101, the corresponding guide grooves are respectively a push rod guide groove 301 and a locking guide groove 302, the inner wall of the telescopic cylinder 80 is provided with three guide bars 40 matched with the guide grooves and parallel with the shaft rod 21, that is, the guide bars 40 inside the telescopic cylinder 80 are also three, and the bottom of the guide bars 40 is provided with an inclined surface 400 corresponding to the tooth surface of the locking ratchet wheel 101; two gear teeth are arranged between every two guide grooves of the locking ratchet 101, namely a locking gear tooth 1011 and a pushing gear tooth 1012 from left to right, and two gear teeth are also arranged between every two guide grooves of the pushing rod ratchet 102, and the two gear teeth are the same in structure and serve as a clamping gear tooth 1021.

As shown in fig. 1 and 3, what is reflected by the ratchet set 10 at this time is that the telescopic rod 70 of the cabinet door rebounder is in a contracted state, and when the cabinet door rebounder needs to be in a sprung state, the ratchet set 10 is pushed to descend by pressing the telescopic rod 70; until the top end of the pushing gear teeth 1012 of the locking ratchet 101 is connected with the inclined plane 400 at the bottom of the guide bar 40, the locking ratchet 101 makes the pushing gear teeth 1012 slide upwards along the inclined plane 400 of the guide bar 40 while rotating around the shaft rod 21 under the action of the compression spring 50, as shown in fig. 4; then, under the rotation of the locking ratchet 101, the push rod guide groove 301 and the locking guide groove 302 are aligned so that the guide bar 40 can pass through the locking guide groove 302, as shown in fig. 5; finally, under the guidance of the guide bar 40, the push rod ratchet 102 drives the telescopic rod 70 to pop out under the action of the compressed spring 50.

As shown in fig. 2 and fig. 5, what is reflected by the ratchet set 10 at this time is that the telescopic rod 70 of the cabinet door rebounder is in a popup state, and when it is required to make the cabinet door rebounder in a locked state, the ratchet set 10 is pushed to descend by pressing the telescopic rod 70; until the bottom end of the inclined surface 400 of the guide bar 40 is connected with the top end of the pushing gear teeth 1012 of the locking ratchet 101, as shown in fig. 6; the ejector gear is then inserted into the push rod guide slot 301 under the action of the compression spring 50, so that the guide strip 40 is inserted between the locking gear teeth 1011 and the ejector gear teeth 1012 and is restrained by the ejector gear teeth 1012, as shown in fig. 7.

The operation of the ratchet set 10 in the following embodiments is as described above, and the description thereof will not be repeated in the following embodiments.

Example one

As shown in fig. 8 and 9, the cabinet door rebounder includes a telescopic device 1, a fixing seat 2 for installing the telescopic device 1 in a cabinet, wherein the telescopic device 1 includes a telescopic cylinder 80, a telescopic rod 70 installed in the telescopic cylinder 80 and constrained by the telescopic cylinder 80 in a telescopic stroke, a magnet 3 fixed at the top end of the telescopic rod 70, a ratchet group 10 located at the bottom of the telescopic rod 70, and a compression spring 50 placed between the bottom of the ratchet group 10 and the bottom wall of the telescopic cylinder 80, the telescopic rod 70 is hollow and is provided with an anti-fleeing spring 60, a limiting portion 200 at the top of a shaft 21 extends into the telescopic rod 70, the bottom of the anti-fleeing spring 60 is fixed at the limiting portion 200 at the top of the shaft 21, and an inward extending shoulder 800 is provided at an opening at the top of the telescopic cylinder 80 for constraining the telescopic rod 70 from coming out of the telescopic cylinder 80.

Because the telescopic rod 70 is fixed with the push rod ratchet wheel 102, when the guide strip 40 is embedded between the locking gear teeth 1011 and the pushing gear teeth 1012 and is restrained by the pushing gear teeth 1012, the telescopic rod 70 can slightly move up and down along the shaft rod 21, so that a cabinet door provided with the cabinet door rebounder can not be closed tightly, and through the arrangement of the anti-moving spring 60, when the telescopic rod 70 is contracted, the anti-moving spring 60 pushes and presses the shaft rod 21 downwards, so that the restraint of the limiting part 200 at the top of the shaft rod 21 on the push rod ratchet wheel 102 is realized, and the movement of the telescopic rod 70 is avoided.

Example two

As shown in fig. 11 and 12, or as shown in fig. 13 and 14, based on the first embodiment, the shaft 21 is a rivet 22, the tip 201 of the rivet 22 is located at the bottom end thereof and serves as a limiting portion 200 for fixing the compression spring 50, the limiting portion 200 at the top of the rivet 22 is a fork-shaped object placing portion 202 for placing a steel ball 203, the steel ball 203 is placed on the fork-shaped object placing portion 202, the steel ball 203 is used for fixing the anti-moving spring 60, an inward extending shoulder 800 is arranged at the top opening of the telescopic cylinder 80 and is used for restraining the telescopic rod 70 from falling out of the telescopic cylinder 80, the telescopic cylinder 80 is composed of a cylinder body 801 and a cylinder cap 802 located at the bottom thereof, and the cylinder body 801 is screwed with the cylinder cap 802 through threads.

In the assembly of the anti-jump spring 60 in the first embodiment, since the limiting portion 200 at the top end of the shaft rod 21 is located in the telescopic rod 70, the anti-jump spring 60 is difficult to be fixed on the limiting portion 200 when being put into the telescopic rod 70, the bottom of the anti-jump spring 60 is fixed on the steel ball 203 first, and then the anti-jump spring is put into the telescopic rod 70, and the fork-shaped object placing portion 202 at the top of the rivet 22 relatively fixes the steel ball 203, and similarly, when the compression spring 50 is installed, the anti-jump spring is put into the barrel 801 of the telescopic barrel 80 first, and then the barrel cap 802 is screwed to complete the assembly of the compression spring 50, thereby improving the assembly efficiency.

EXAMPLE III

As shown in fig. 10 to 12, in the second embodiment, the push rod ratchet 102 is integrally formed with the telescopic rod 70, a nut 700 is screwed on the top of the telescopic rod 70, and the top of the nut 700 is used for placing the magnet 3.

By integrally forming the push rod ratchet 102 and the telescopic rod 70, it is more convenient to drive the rivet 22, and meanwhile, by screwing a nut 700 at the top, when the anti-channeling spring 60 is assembled, the assembly can be realized only by unscrewing the nut 700, and the assembly efficiency is further improved.

Example four

As shown in fig. 13 to 15, in the second embodiment, an external threaded tube 1022 is disposed at the top of the push rod ratchet 102 and is coaxial therewith, a corresponding internal thread is disposed on the inner sidewall of the bottom of the telescopic rod 70, the telescopic rod 70 is screwed onto the push rod ratchet 102, a placing slot for placing the magnet 3 is disposed at the top of the telescopic rod 70, and the magnet 3 extends upward out of the telescopic tube 80.

Due to the nut 700 in the third embodiment, the length of the cabinet door rebounder is increased, and finally, more space is occupied during installation, and the telescopic rod 70 is screwed on the push rod ratchet wheel 102, so that the assembly of the anti-fleeing spring 60 in the cabinet door rebounder is facilitated, the length of the cabinet door rebounder can be shortened, and the occupation of space in the cabinet is reduced; even can directly place in the wallboard board of constituteing the cabinet door in, realize that zero of cabinet space occupies.

EXAMPLE five

On the basis of the fourth embodiment, since the abutting surface of the extension rod 70 and the push rod ratchet 102 is closer to the locking ratchet 101, the relative rotation of the ratchet group 10 during the pressing process easily loosens the screwing connection between the extension rod 70 and the push rod ratchet 102, thereby causing the failure of the cabinet door rebounder, and in order to avoid this situation, as shown in fig. 1, 2 and 16, the surface of the abutting portion between the push rod ratchet 102 and the extension rod 70 is circumferentially provided with the reverse teeth 90, so that the extension rod 70 and the push rod ratchet 102 are not easily loosened after being screwed, and the service life thereof is further prolonged.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made thereto within the knowledge of those skilled in the art.

Claims

1. A cabinet door rebounder comprises a telescopic device (1), a fixed seat (2) used for installing the telescopic device (1) in a cabinet, and is characterized in that the telescopic device (1) comprises a telescopic cylinder (80), a telescopic rod (70) which is installed in the telescopic cylinder (80) and is limited in telescopic stroke by the telescopic cylinder, a magnet (3) fixed at the top end of the telescopic rod (70), a ratchet wheel group (10) positioned at the bottom of the telescopic rod (70), and a compression spring (50) placed between the bottom of the ratchet wheel group (10) and the bottom wall of the telescopic cylinder (80);

the ratchet wheel set (10) is formed by connecting a pair of mutually meshed ratchet wheels in series through a shaft rod (21), at least three guide grooves parallel to the shaft rod (21) in the extending direction are circumferentially formed in the side faces of the two ratchet wheels, guide strips (40) matched with the guide grooves and parallel to the shaft rod (21) are arranged on the inner wall of a telescopic cylinder (80), and inclined faces (400) corresponding to the tooth faces of the teeth of the locking ratchet wheel (101) are arranged at the bottoms of the guide strips (40);

the two ratchet wheels are respectively a push rod ratchet wheel (102) and a locking ratchet wheel (101), the corresponding guide grooves of the two ratchet wheels are respectively a push rod guide groove (301) and a locking guide groove (302), and the top and the bottom of the shaft rod (21) are both provided with a limiting part (200) for preventing the push rod ratchet wheel (102) from falling out of the shaft rod (21) when the locking ratchet wheel (101) jacks the push rod ratchet wheel (102);

the push rod ratchet wheel (102) is fixed with the telescopic rod (70), and when the telescopic rod (70) is pressed, the two ratchet wheels rotate relatively, so that the guide grooves of the two ratchet wheels are in a straight line, the ratchet wheel set (10) advances along the guide strip (40) to push the telescopic rod (70) to eject, or the guide strip (40) is embedded between the gear teeth of the locking ratchet wheel (101), and the locking ratchet wheel (101) is abutted against the guide strip (40) to prevent the telescopic rod (70) from ejecting;

the telescopic rod (70) is hollow, the anti-channeling spring (60) is placed, the limiting part (200) at the top of the shaft rod (21) extends into the telescopic rod (70), and the bottom of the anti-channeling spring (60) is fixed to the limiting part (200) at the top of the shaft rod (21).

2. The cabinet door rebounder of claim 1, wherein: the shaft lever (21) is a rivet (22), the tip (201) of the rivet (22) is located at the bottom end of the rivet and serves as a limiting portion (200) used for fixing the compression spring (50), and the limiting portion (200) at the top of the rivet (22) is used for fixing the anti-channeling spring (60).

3. The cabinet door rebounder of claim 2, wherein: the limiting part (200) at the top of the rivet (22) is an object placing part (202) for placing a steel ball (203), and the steel ball (203) is used for fixing the anti-channeling spring (60).

4. The cabinet door rebounder of claim 3, wherein: the push rod ratchet wheel (102) and the telescopic rod (70) are integrally formed, the top of the telescopic rod (70) is connected with a nut (700) in a rotating mode, and the top of the nut (700) is used for placing the magnet (3).

5. The cabinet door rebounder of claim 3, wherein: the top of the push rod ratchet wheel (102) is provided with an external threaded pipe (1022) coaxial with the push rod ratchet wheel, the inner side wall of the bottom of the telescopic rod (70) is provided with a corresponding internal thread, the telescopic rod (70) is screwed on the push rod ratchet wheel (102), the top of the telescopic rod (70) is provided with a placing groove for placing the magnet (3), and the magnet (3) extends upwards out of the telescopic cylinder (80).

6. The cabinet door rebounder of claim 5, wherein: the surface of the junction of the push rod ratchet wheel (102) and the telescopic rod (70) is circumferentially provided with reverse teeth (90).

7. The cabinet door rebounder of any one of claims 1-6, wherein: the telescopic cylinder (80) consists of a cylinder body (801) and a cylinder cap (802) positioned at the bottom of the telescopic cylinder, and the cylinder body (801) is screwed with the cylinder cap (802) through threads.

8. The cabinet door rebounder of claim 7, wherein: an inward extending shoulder (800) is arranged at the opening at the top of the telescopic cylinder (80) and used for restraining the telescopic rod (70) to prevent the telescopic rod from falling out of the telescopic cylinder (80).