CN215718003U

CN215718003U - Door hinge for public washroom

Info

Publication number: CN215718003U
Application number: CN202121289237.8U
Authority: CN
Inventors: 赵金胜
Original assignee: Baoding Shengtong Building Materials Technology Development Co ltd
Current assignee: Baoding Shengtong Building Materials Technology Development Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-02-01
Anticipated expiration: 2031-06-09

Abstract

The utility model provides a door hinge for a public washroom, which comprises a first hinge plate, a second hinge plate, a telescopic damping assembly and a retarding plate, wherein the first hinge plate and the second hinge plate are mutually hinged through a mandrel; the telescopic damping component is arranged on the first hinge plate, and the output end of the telescopic damping component extends and retracts along the radial direction of the mandrel; the retarding plate is integrally formed on the second hinge plate along the axial direction of the mandrel and is aligned with the mandrel; when the folding angle between the first hinge plate and the second hinge plate is 150-180 degrees, the output end of the telescopic damping assembly is abutted to the retardation plate, and when the folding angle between the first hinge plate and the second hinge plate is smaller than 150 degrees, the output end of the telescopic damping assembly is separated from the retardation plate. The door hinge for the public washroom provided by the utility model has long service life, and can avoid inertial collision with a door frame when the public washroom door is closed.

Description

Door hinge for public washroom

Technical Field

The utility model belongs to the technical field of hinges, and particularly relates to a door hinge for a public washroom.

Background

At present, the toilet door in public places is mostly installed by hinges with automatic reset function, so that the toilet door can be automatically closed under the condition of unmanned operation, the automatic reset power of the hinges is usually realized by a torsion spring sleeved on a hinge shaft, but the toilet door has certain inertia when automatically resetting under the elastic force of the torsion spring, so the toilet door collides with a door frame at the moment of closing the door, thereby the damage of the public toilet is intensified, in addition, in order to avoid the problems, some public toilets adopt a mode of installing a rotary damper on the hinge shaft, so the toilet door has certain damping characteristic when being closed, but the toilet door usually has a large angle when being opened, the service life of the rotary damper is seriously reduced when dealing with large-angle rotation, so the damage rate of the hinges is high, moreover, the hinge with the rotary damper is also expensive, which increases the maintenance cost of the public washroom.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a public washroom door hinge, and aims to solve the problems that the public washroom door hinge is short in service life and large in collision force between a door and a door frame when the door is closed.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a public washroom door hinge, includes and is used for laminating first hinge plate and the second hinge plate of fixing on first installation face and second installation face through the pivot is articulated each other, still includes:

the telescopic damping assembly is arranged on one side, facing the first mounting surface, of the first hinge plate, and the output end of the telescopic damping assembly stretches along the radial direction of the mandrel;

the retarding plate is integrally formed on one side, facing the second mounting surface, of the second hinge plate along the axial direction of the mandrel, and the retarding plate is aligned with the mandrel along the direction perpendicular to the second mounting surface;

when the folding angle between the first hinge plate and the second hinge plate is 150-180 degrees, the output end of the telescopic damping assembly is abutted to the retarding plate, and when the folding angle between the first hinge plate and the second hinge plate is smaller than 150 degrees, the output end of the telescopic damping assembly is separated from the retarding plate.

In a possible implementation mode, the first hinge plate is provided with a sliding groove towards the side wall of the first installation surface in an integrated forming mode, the telescopic damping assembly comprises a telescopic damper and a sliding block arranged at the output end of the telescopic damper, the sliding block is connected in the sliding groove in a sliding mode, one end of the sliding block extends out of the sliding groove towards the direction of the second hinge plate, and the extending end is abutted to or separated from the retarding plate.

In some embodiments, the protruding end of the slider is arc-shaped.

In some embodiments, the protruding end of the sliding block is integrally formed with a limiting part, and when the first hinge plate and the second hinge plate are folded to 180 degrees, the limiting part abuts against the end wall of the sliding groove facing the second hinge plate.

In a possible implementation mode, the first hinge plate is provided with two first connecting lugs at an upper and lower interval, the second hinge plate is provided with a second connecting lug positioned between the two first connecting lugs, and the mandrel is arranged on the two first connecting lugs and the second connecting lug in a penetrating manner.

In some embodiments, the mandrel comprises:

the two ends of the hollow shaft are respectively and rotatably connected with the two first connecting lugs, and the middle part of the hollow shaft is fixedly arranged in the second connecting lug in a penetrating way;

the adjusting column penetrates through one of the first connecting lugs, and one end of the adjusting column is inserted into the hollow shaft and is rotatably connected with the hollow shaft;

the elastic reset piece is arranged in the hollow shaft, one end of the elastic reset piece is connected with the inner wall of the hollow shaft, which is far away from the adjusting column, and the other end of the elastic reset piece is connected with the adjusting column.

Exemplarily, the adjusting column is rotatably connected with the first connecting lug, a tooth-shaped structure is arranged on the side wall of the adjusting column, a jackscrew is screwed on the side wall of the first connecting lug connected with the adjusting column, and one end of the jackscrew penetrates into the first connecting lug and is abutted to the tooth-shaped structure.

For example, the first connecting lug is provided with a first shaft hole suitable for being penetrated through by the hollow shaft, one first shaft hole is provided with a first through groove extending along the axial direction of the first shaft hole, the second connecting lug is provided with a second shaft hole suitable for being penetrated through by the hollow shaft, the second shaft hole is provided with a second through groove extending along the axial direction of the second shaft hole, the outer wall of the hollow shaft is provided with a sliding key extending along the axial direction of the sliding key, and the sliding key is embedded with the second through groove.

In some embodiments, a first clamping groove is formed in one end, away from the adjusting column, of the hollow shaft, a second clamping groove is formed in one end, inserted into the hollow shaft, of the adjusting column, clamping rings are respectively arranged at two ends of the elastic resetting piece, and the two clamping rings are correspondingly clamped in the first clamping groove and the second clamping groove respectively.

Illustratively, one end of the hollow shaft, which is far away from the adjusting column, is provided with a first pin column in a radial direction in a penetrating manner, the first pin column penetrates through one of the clamping rings, a second pin column penetrates through the adjusting column in the radial direction, and the second pin column penetrates through the other clamping ring.

The door hinge for the public washroom provided by the utility model has the beneficial effects that: compared with the prior art, in the public toilet door hinge, the folding included angle between the first hinge plate and the second hinge plate is gradually increased in the closing process of the toilet door, when the folding included angle reaches 150 degrees, the retarding plate integrally formed on the second hinge plate is abutted against the output end of the telescopic damping assembly, so that the telescopic damping assembly exerts damping acting force on the retarding plate in the continuous closing process of the toilet door, the closing inertia force of the toilet door is relieved until the folding angle of the first hinge plate and the second hinge plate reaches 180 degrees, and the toilet door is completely closed, so that the phenomenon that the toilet door collides with a door frame due to overlarge inertia force in the closing process is avoided; when the toilet door is opened until the turning angle between the first hinge plate and the second hinge plate is less than 150 degrees, the retarding plate swings together with the second hinge plate and is separated from the output end of the telescopic damping assembly, so that the stroke of the telescopic damping assembly can be reduced, the occupied space for mounting the telescopic damping assembly is reduced, and the service life of the telescopic damping assembly is prolonged.

Drawings

FIG. 1 is an exploded view of a hinge for a public washroom door according to an embodiment of the present invention;

FIG. 2 is a first schematic perspective view of a public washroom door hinge according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a public washroom door hinge according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a hollow shaft according to an embodiment of the present invention.

In the figure: 1. a first hinge plate; 11. a telescopic damping assembly; 111. a telescopic damper; 112. a slider; 1121. A limiting part; 12. a chute; 13. a first connecting lug; 130. a first shaft hole; 1301. a first through groove; 131. Carrying out top thread; 2. a second hinge plate; 21. a retardation plate; 22. a second engaging lug; 220. a second shaft hole; 2201. A second through groove; 3. a mandrel; 31. a hollow shaft; 311. a sliding key; 312. a first card slot; 313. a first pin; 32. an adjustment column; 321. a tooth-shaped structure; 322. a second card slot; 323. a second pin; 33. an elastic reset member; 331. a snap ring; 4. a nylon pad.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 3 together, the hinge for a public lavatory according to the present invention will now be described. The door hinge for the public washroom comprises a first hinge plate 1 and a second hinge plate 2 which are hinged with each other through a mandrel 3 and are respectively used for being attached and fixed on a first mounting surface and a second mounting surface, a telescopic damping component 11 and a retarding plate 21; the telescopic damping component 11 is arranged on one side, facing the first mounting surface, of the first hinge plate 1, and the output end of the telescopic damping component 11 stretches along the radial direction of the mandrel 3; the retarding plate 21 is integrally formed on one side of the second hinge plate 2 facing the second mounting surface along the axial direction of the mandrel 3, and the retarding plate 21 is aligned with the mandrel 3 along the direction perpendicular to the second mounting surface; when the folding angle between the first hinge plate 1 and the second hinge plate 2 is 150-180 degrees, the output end of the telescopic damping component 11 is abutted to the retarding plate 21, and when the folding angle between the first hinge plate 1 and the second hinge plate 2 is smaller than 150 degrees, the output end of the telescopic damping component 11 is separated from the retarding plate 21.

It should be noted that the first installation surface and the second installation surface are respectively a door frame outer wall and a door outer wall, and in this embodiment, the first hinge plate 1 is fixed on the door frame outer wall, and the second hinge plate 2 is fixed on the door outer wall, but it should be understood that the actual installation manner is not limited to this installation manner, and the first hinge plate 1 and the second hinge plate 2 are in an unfolded state in the door closing state, that is, the included angle between the two is 180 °, and the included angle between the two (i.e., the folding angle) gradually decreases in the door opening process.

The working principle of the door hinge for the public washroom provided by the embodiment is as follows: referring to fig. 2 and 3 together, when the door is closed from an open state (usually, the open angle is greater than 90 °, and the folding angle of the first hinge plate 1 and the second hinge plate 2 is less than 90 °), before the folding angle of the first hinge plate 1 and the second hinge plate 2 increases to 150 °, the door is closed under the action of an external force or a self-resetting force (which may be by using a mandrel 3 with an elastic resetting rotating force, such as a mandrel 3 structure of a sheath or a built-in torsion spring), when the folding angle reaches 150 °, the retarding plate 21 collides with the output end (i.e., the telescopic end) of the telescopic damping assembly 11, so as to generate a damping force of relative rotation between the first hinge plate 1 and the second hinge plate 2, and during the door is continuously closed, the retarding plate 21 swings with the second hinge plate 2 relative to the first hinge plate 1, thereby pushing the output end of the telescopic damping assembly 11 to retract until the folding angle reaches 180 °, namely, the door is completely closed, so when the folding angle between the first hinge plate 1 and the second hinge plate 2 is in the range of 150-180 degrees, the first hinge plate and the second hinge plate can always receive the damping acting force of the telescopic damping assembly 11, the closing inertia force of the door can be relieved, and the door plate and the door frame are prevented from being collided with each other vigorously; during the door opening process, the second hinge plate 2 swings relative to the first hinge plate 1, so that the retardation plate 21 aligned with the mandrel 3 is separated from the output end of the telescopic damping assembly 11 when the folding angle is smaller than 150 °, that is, the telescopic damping assembly 11 only has the function range that the folding angle of the first hinge plate 1 and the second hinge plate 2 is in the range of 150-180 °, and when the door is opened to a larger angle (that is, the folding angle of the first hinge plate 1 and the second hinge plate 2 is smaller than 150 °), the telescopic damping assembly 11 is in a free reset state and does not interfere with the turnover swinging process, it should be noted that the telescopic damping assembly 11 specifically has damping resistance when the output end is retracted, and when the retardation plate 21 gradually gets away from the telescopic damping assembly 11 during the door opening process, the output end automatically resets to an extended state, and the specific telescopic principle is equivalent to a gas spring or a hydraulic damping rod, and will not be described in detail herein.

Compared with the prior art, in the public washroom door hinge provided by the embodiment, in the process of closing the washroom door, the folding included angle between the first hinge plate 1 and the second hinge plate 2 is gradually increased, when the folding included angle reaches 150 degrees, the retarding plate 21 integrally formed on the second hinge plate 2 is abutted to the output end of the telescopic damping component 11, so that the telescopic damping component 11 applies damping acting force to the retarding plate 21 in the process of continuously closing the washroom door, the closing inertia force of the washroom door is relieved, the washroom door is completely closed until the folding angle of the first hinge plate 1 and the second hinge plate 2 reaches 180 degrees, and collision between the washroom door and a door frame due to overlarge inertia force is avoided; when the toilet door is opened until the turning angle between the first hinge plate 1 and the second hinge plate 2 is less than 150 degrees, the retarding plate 21 swings together with the second hinge plate 2 and is separated from the output end of the telescopic damping component 11, so that the stroke of the telescopic damping component 11 can be reduced, the occupied space for installation is reduced, and the service life of the telescopic damping component is prolonged.

In some embodiments, referring to fig. 1 to 3, a sliding slot 12 is integrally formed on a side wall of the first hinge plate 1 facing the first mounting surface, the telescopic damping assembly 11 includes a telescopic damper 111 and a sliding block 112 disposed at an output end of the telescopic damper 111, the sliding block 112 is slidably connected in the sliding slot 12, and one end of the sliding block extends out of the sliding slot 12 towards the second hinge plate 2, and the extended end is abutted against or separated from the retardation plate 21. The telescopic damper 111 is a device for relieving mechanical kinetic energy by using damping characteristics, such as a gas spring, a hydraulic damping rod, etc., and the telescopic stability of the telescopic damper 111 can be improved by using the sliding connection relationship between the slider 112 connected to the output end of the telescopic damper 111 and the chute 12, thereby preventing the output end of the telescopic damper 111 from being stressed and bent, and prolonging the service life.

Specifically, in the present embodiment, the protruding end of the slider 112 is arc-shaped. Because the retarding plate 21 has the action of swinging together with the second hinge plate 2 relative to the sliding block 112 in the process of changing the folding angles of the first hinge plate 1 and the second hinge plate 2, the collision position of the retarding plate 21 and the sliding block 112 is in the process of changing continuously, the extending end of the sliding block 112 is designed to be in the shape of a circular arc, and the collision stability between the extending end and the retarding plate 21 can be improved.

Optionally, in this embodiment, a limiting portion 1121 is integrally formed at an extending end of the slider 112, and when the first hinge plate 1 and the second hinge plate 2 are folded to 180 °, the limiting portion 1121 abuts against an end wall of the sliding slot 12 facing the second hinge plate 2. Since the door panel and the door frame wall should be flush when the door is in the fully closed state, and the folding angle between the first hinge plate 1 and the second hinge plate 2 is 180 °, the limiting portion 1121 is disposed to abut against the end wall of the sliding groove 12 (the end wall specifically refers to the wall body of the sliding groove 12 that is opened at the corresponding position on the first hinge plate 1), so as to limit the maximum folding angle between the first hinge plate 1 and the second hinge plate 2, and avoid the door from being excessively closed and colliding with the door frame.

In some possible implementations, referring to fig. 1, two first connecting lugs 13 are disposed at an interval in the upper and lower direction of the first hinge plate 1, a second connecting lug 22 located between the two first connecting lugs 13 is disposed on the second hinge plate 2, and the mandrel 3 is disposed on the two first connecting lugs 13 and the second connecting lug 22 in a penetrating manner. Specifically, nylon pads 4 are respectively clamped between two ends of the second connecting lug 22 and the two first connecting lugs 13, and the nylon pads 4 are sleeved on the mandrel 3. Simple structure is stable, connects reliably.

In some embodiments, the mandrel 3 is configured as shown in fig. 1, and includes a hollow shaft 31, an adjusting column 32, and an elastic restoring member 33; wherein, two ends of the hollow shaft 31 are respectively rotatably connected with the two first connecting lugs 13, and the middle part is fixedly arranged in the second connecting lug 22 in a penetrating way; the adjusting column 32 is arranged in one of the first connecting lugs 13 in a penetrating manner, and one end of the adjusting column is inserted into the hollow shaft 31 and is rotatably connected with the hollow shaft 31; the elastic reset piece 33 is arranged in the hollow shaft 31, one end of the elastic reset piece is connected with the inner wall of the hollow shaft 31 far away from the adjusting column 32, and the other end of the elastic reset piece is connected with the adjusting column 32.

The elastic reset member 33 may be a torsion spring, after the door is opened, the torsion spring generates an elastic torsion force between the hollow shaft 31 and the adjusting post 32, and the hollow shaft 31 and the second engaging lug 22 are relatively fixed, and the adjusting post 32 and the first engaging lug 13 are relatively fixed, so that the torsion spring can generate an elastic torsion force between the first hinge plate 1 and the second hinge plate 2, thereby enabling the door to be automatically closed in an open state, and because the torsion spring is located inside the hollow shaft 31, the door can be prevented from being exposed, and is attractive and practical.

Specifically, referring to fig. 1, the adjusting post 32 is rotatably connected to the first connecting lug 13, a tooth-shaped structure 321 is disposed on a side wall of the adjusting post 32, a top thread 131 is rotatably connected to a side wall of the first connecting lug 13 connected to the adjusting post 32, and one end of the top thread 131 penetrates into the first connecting lug 13 and abuts against the tooth-shaped structure 321. The adjusting column 32 is far away from the end wall of the hollow shaft 31 and can be provided with an inner hexagonal or cross or a straight groove for inserting a wrench or a screwdriver, after the jackscrew 131 is screwed out, the adjusting column 32 is rotated by adopting an operating tool, so that the elastic acting force of the elastic reset piece 33 can be adjusted, the jackscrew 131 is screwed after the adjustment is completed to abut against the tooth-shaped structure 321, the relative rotational freedom degree of the adjusting column 32 and the first connecting lug 13 is limited, the structure is simple and reliable, and the elastic force is convenient and flexible to adjust.

Optionally, referring to fig. 1, the first connecting lug 13 is provided with a first shaft hole 130 adapted to penetrate the hollow shaft 31, one of the first shaft holes 130 is provided with a first through groove 1301 extending along the axial direction thereof, the second connecting lug 22 is provided with a second shaft hole 220 adapted to penetrate the hollow shaft 31, the second shaft hole 220 is provided with a second through groove 2201 extending along the axial direction thereof, the outer wall of the hollow shaft 31 is provided with a sliding key 311 extending along the axial direction thereof, and the sliding key 311 is embedded in the second through groove 2201. When the hollow shaft connecting lug is assembled, the first through groove 1301 and the second through groove 2201 are aligned by swinging the angle between the first hinge plate 1 and the second hinge plate 2, then the sliding key 311 is aligned with the first through groove 1301 and penetrates into the hollow shaft 31 towards the second shaft hole 220, after the sliding key 311 completely slides through the first sliding groove 12 and enters the second through groove 2201, the fixed connection between the hollow shaft 31 and the second connecting lug 22 can be realized (the tight fit press fitting should be adopted between the hollow shaft 31 and the second shaft hole 220), the mounting operation is convenient, and the connection is stable and reliable.

In some embodiments, referring to fig. 1 and fig. 4, a first engaging groove 312 is disposed at an end of the hollow shaft 31 away from the adjusting post 32, a second engaging groove 322 is disposed at an end of the adjusting post 32 inserted into the hollow shaft 31, two ends of the elastic restoring element 33 are respectively disposed with two engaging rings 331, and the two engaging rings 331 are respectively engaged with the first engaging groove 312 and the second engaging groove 322. The connection of the torsion spring can be realized by respectively inserting the snap rings 331 at the two ends of the elastic reset piece 33 into the first clamping groove 312 and the second clamping groove 322, and the connection is convenient and reliable.

For example, referring to fig. 1 and 4, a first pin 313 is radially inserted through an end of the hollow shaft 31 away from the adjusting post 32, the first pin 313 passes through one of the snap rings 331, a second pin 323 is radially inserted through the adjusting post 32, and the second pin 323 passes through the other snap ring 331. Pass two snap rings 331 respectively through first round pin post 313 and second round pin post 323 to adjusting post 32, hollow shaft 31 and elasticity piece 33 and linking as an organic whole that resets, thereby can avoid snap ring 331 and first draw-in groove 312 or second draw-in groove 322 to break away from, improve the connection reliability that elasticity reset piece 33, thereby ensure the stability that resets.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Public bathroom is with door hinge, its characterized in that includes and is used for laminating first hinge plate and the second hinge plate fixed on first installation face and second installation face through the dabber is articulated each other, respectively, still includes:

a retarding plate integrally formed on a side of the second hinge plate facing the second mounting surface in an axial direction of the core shaft, the retarding plate being aligned with the core shaft in a direction perpendicular to the second mounting surface;

2. The public washroom door hinge according to claim 1, wherein the first hinge plate has a sliding groove integrally formed on a side wall thereof facing the first mounting surface, the telescopic damping assembly includes a telescopic damper and a slider provided at an output end of the telescopic damper, the slider is slidably coupled in the sliding groove, and one end of the slider extends out of the sliding groove toward the second hinge plate, and the extended end abuts against or separates from the retardation plate.

3. A public lavatory door hinge according to claim 2, wherein the projecting end of the slider is arc-shaped.

4. The public toilet door hinge according to claim 2, wherein a stopper is integrally formed at an extended end of the slider, and when the first hinge plate and the second hinge plate are folded to 180 °, the stopper abuts against an end wall of the slide groove facing the second hinge plate.

5. A public lavatory door hinge according to any one of claims 1 to 4, wherein the first hinge plate is provided with two first engaging lugs spaced apart from each other in the up-down direction, the second hinge plate is provided with a second engaging lug located between the two first engaging lugs, and the core shaft is inserted into the two first engaging lugs and the second engaging lug.

6. A public lavatory door hinge according to claim 5, wherein the spindle comprises:

the two ends of the hollow shaft are respectively and rotatably connected with the two first connecting lugs, and the middle part of the hollow shaft is fixedly arranged in the second connecting lug in a penetrating manner;

the elastic reset piece is arranged in the hollow shaft, one end of the elastic reset piece is connected with the inner wall of the adjusting column far away from the hollow shaft, and the other end of the elastic reset piece is connected with the adjusting column.

7. The public washroom door hinge according to claim 6, wherein the adjusting post is rotatably connected to the first connecting lug, and a side wall of the adjusting post is provided with a tooth-shaped structure, and a top thread is screwed to the side wall of the first connecting lug connected to the adjusting post, and one end of the top thread penetrates into the first connecting lug and abuts against the tooth-shaped structure.

8. A public washroom door hinge as claimed in claim 6, wherein the first engaging lug is provided with a first shaft hole adapted to receive the hollow shaft, one of the first shaft holes is provided with a first through groove extending in the axial direction thereof, the second engaging lug is provided with a second shaft hole adapted to receive the hollow shaft, the second shaft hole is provided with a second through groove extending in the axial direction thereof, the outer wall of the hollow shaft is provided with a sliding key extending in the axial direction thereof, and the sliding key is engaged with the second through groove.

9. The public washroom door hinge as claimed in claim 6, wherein the hollow shaft has a first engaging groove at an end thereof remote from the adjusting post, a second engaging groove at an end thereof inserted into the hollow shaft, and two ends of the elastic return member are respectively provided with two engaging rings, and the two engaging rings are respectively engaged with the first engaging groove and the second engaging groove.

10. The public washroom door hinge according to claim 9, wherein a first pin is radially inserted through an end of the hollow shaft remote from the adjustment post, the first pin passing through one of the snap rings, and a second pin is radially inserted through the adjustment post, the second pin passing through the other snap ring.