CN111779390B

CN111779390B - Shower room hinge and rail train

Info

Publication number: CN111779390B
Application number: CN202010663451.9A
Authority: CN
Inventors: 张宝峰; 魏凌; ***; 刘慧峰; 王冰松
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2022-02-22
Anticipated expiration: 2040-07-10
Also published as: CN111779390A

Abstract

The invention discloses a shower room hinge and a rail train, wherein the shower room hinge comprises: the first hinge main body is used for being installed on a door frame and is provided with a first pivot shaft; the second hinge main body is used for being arranged on the door leaf and is provided with a second pivot shaft; the first hinge body is pivotally connected with the second hinge body, and the second hinge body is provided with a first position and a second position relative to the first hinge body; a first limiting hole is formed in at least one end face, in contact with the second pivot shaft, of the first pivot shaft, and a first set angle is formed between the connecting line direction of the center of the first limiting hole and the center of the first pivot shaft and the direction of the second hinge main body in the first position; the end face of the second pivot shaft contacting the first pivot shaft is provided with a limiting ball, and when the second hinge main body rotates to a second position from a first position relative to the first hinge main body, the second hinge main body drives the limiting ball to slide into the first limiting hole to limit the second hinge main body. The invention achieves the limiting effect on the door leaf by utilizing the limiting effect of the limiting hole on the limiting bead.

Description

Shower room hinge and rail train

Technical Field

The invention belongs to the technical field of rail trains, and particularly relates to a shower room hinge in a main compartment of a rail transit official vehicle and a rail train.

Background

The rail train is a common vehicle for daily travel of people, and a washroom is arranged in a carriage of the rail train, so that passengers and vehicle workers can conveniently wash the face and mouth simply. For a train running for a long distance, passengers and vehicle workers need to live in a carriage for a long time, and a bathroom in the carriage cannot provide bathing because only simple washing can be performed.

A shower room is generally arranged in a main compartment of an existing rail train official vehicle. However, the space between the rail train official vehicle main compartments is limited, so that the shower door is prevented from being opened, the shower door does not collide with other surrounding equipment, the walking space of people is not influenced, and the shower door is required to have a limiting function. The existing bus shower room door is limited, and a limit stop is arranged at a proper position on the ground; when the shower room door is closed, water is sealed and retained between the door and the door frame and between the door and the door frame through magnetic stripe suction.

The above solution has the following disadvantages:

1. the ground of the rain room is provided with a limit stop, so that the ground has poor waterproof sealing property;

2. people may be caught carelessly when walking, and potential safety hazards exist;

3. the suction force of the magnetic strip is gradually weakened, and the sealing and waterproof effects are poor; because the magnetic stripe suction weakens, the vehicle operation can make the room door that drenches with the rain constantly open, influences the room life that drenches with the rain, even has the potential safety hazard.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a shower room hinge, aiming at realizing the automatic limit of a shower room door body by utilizing the shower room hinge without installing a limit stop on the ground.

The invention also aims to provide a rail train, which comprises the shower room hinge.

In order to solve the technical problems, the invention adopts the technical scheme that:

a shower room hinge comprises:

the first hinge main body is used for being installed on a door frame and is provided with a first pivot shaft;

the second hinge main body is used for being arranged on the door leaf and is provided with a second pivot shaft;

the first pivot shaft and the second pivot shaft are pivotally connected, and the second hinge main body has a first position and a second position relative to the first hinge main body;

a first limiting hole is formed in at least one end face, in contact with the second pivot shaft, of the first pivot shaft, and a first set angle is formed between the direction of a connecting line of the center of the first limiting hole and the center of the first pivot shaft and the direction of the second hinge main body in the first position;

the end face, in contact with the first pivot shaft, of the second pivot shaft is provided with a limiting ball, and when the second hinge main body rotates to a second position from a first position relative to the first hinge main body, the second hinge main body drives the limiting ball to slide into the first limiting hole to limit the second hinge main body.

Further, in the above-mentioned case,

at least one end surface of the first pivot shaft, which is in contact with the second pivot shaft, is also provided with a second limiting hole,

the direction of a connecting line between the center of the second limiting hole and the center of the first pivot shaft deviates from the direction of the second hinge main body when the second hinge main body is at the first position to a second set angle along the direction of the second hinge main body rotating to the first position.

Furthermore, the second hinge main body drives the limiting bead to rotate from the second position to the first position until the center of the limiting bead is located at the edge of the second limiting hole, and a third set angle is formed between the direction of a connecting line of the center of the limiting bead and the center of the first pivot shaft and the direction of the second hinge main body when the second hinge main body is at the first position.

Furthermore, a connecting line of the center of the first limiting hole and the center of the second limiting hole forms an arc with the center of the first pivot shaft as the center of the circle.

Furthermore, an axially-recessed mounting hole is formed in the end face of the second pivot shaft, which is in contact with the first pivot shaft, an elastic supporting piece is arranged in the mounting hole, and the limiting bead is supported by the elastic supporting piece to protrude/retract from the end face of the second pivot shaft, which is in contact with the first pivot shaft;

preferably, the elastic support is a spring.

Further, the mounting hole is a through hole, the side wall of the mounting hole is provided with an internal thread, a screw rod is arranged in the mounting hole, the external thread of the screw rod is matched with the internal thread, and one end of the screw rod is abutted to the elastic supporting piece.

Furthermore, the first limiting hole and the second limiting hole are blind holes, and the depth of the blind holes is 1/4-1/2 of the radius of the limiting ball.

Furthermore, a guide groove for enabling the limiting ball to roll is arranged between the first limiting hole and the second limiting hole.

Furthermore, at least one end face of the first pivot shaft, which is in contact with the second pivot shaft, is provided with two groups of first limiting holes and second limiting holes, and the two groups of first limiting holes and second limiting holes are symmetrical about the center of the first pivot shaft;

the end face of the second pivot shaft, which is in contact with the first pivot shaft, is provided with two limiting beads, and the two limiting beads correspond to the two groups of first limiting holes and the second limiting holes.

A rail train comprises the shower room hinge.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

1. Set up spacing hole and spacing pearl of mutually supporting on first pivotal axis and second pivotal axis, utilize the limiting displacement of spacing hole to spacing pearl to reach the limiting displacement to the door leaf, can avoid additionally setting up the stop gear who blocks the door leaf subaerial, this one side has improved the waterproof sealing performance on train ground, and on the other hand can also avoid detaining the people of walking production, reduces the potential safety hazard.

2. According to the invention, the second limiting hole is provided with an offset angle, so that when the door leaf is at the first position, a deviated distance is reserved between the center of the limiting bead and the center of the second limiting hole, and the characteristic that the center of the limiting bead is not aligned with the center of the second limiting hole is utilized, so that the limiting bead has a tendency of sliding towards the bottom of the second limiting hole under the action of gravity, and then, under the action of the tendency, the door leaf has a self-pressing function.

3. According to the invention, when the door leaf moves to a position with a third set angle between the distance and the first position of the door leaf, the center of the limiting ball is just positioned at the edge of the second limiting hole, and under the action of the gravity of the door leaf, the limiting ball continuously slides towards the bottom of the second limiting hole, so that the self-closing function of the second hinge main body is realized, namely the door leaf has the function of automatic closing.

4. According to the hinge disclosed by the invention, the compression amount of the elastic supporting piece is adjusted by adjusting the displacement of the screw rod in the mounting hole, so that the pressing force of the limiting balls in the first limiting hole and the second limiting hole is adjusted, and the adjustment of the torque value of the hinge is realized.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of the structure of the hinge of the shower room of the present invention;

FIG. 2 is a schematic view of the hinge of the shower room of the present invention in a second position;

FIG. 3 is a schematic view of the hinge of the shower room of the present invention in a first position;

FIG. 4 is a schematic view of the hinge of the shower room of the present invention in a state of being automatically closed;

figure 5 is a front view of the front body of the first hinge;

figure 6 is a top view of the front body of the first hinge;

figure 7 is a front view of the front body of the second hinge;

figure 8 is a top view of the front body of the second hinge;

FIG. 9 is a front view of the rear body of the first hinge or the rear body of the second hinge;

FIG. 10 is a top view of the rear body of the first hinge or the rear body of the second hinge;

FIG. 11 is a schematic view of a screw configuration;

fig. 12 is a schematic view illustrating a process of converting the door leaf from the second position to the first position;

in the figure: 100. a first hinge main body; 101. a first pivot shaft; 102. a first limit hole; 103. a second limiting hole; 104. a first hole; 105. a first hinge front body; 106. a first hinge rear body;

200. a second hinge body; 201. a limiting bead; 202. mounting holes; 203. an elastic support member; 204. a screw; 205. a second hole; 206. a second hinge front body; 207. a second hinge rear body; 208. a second pivot shaft;

300. a rotating shaft; 400. a door frame; 500. a door leaf;

A. a first set angle; B. a second set angle; C. and a third setting angle.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 12, the present invention provides a shower room hinge, which comprises a first hinge main body 100 and a second hinge main body 200. The first hinge main body 100 is used for being mounted on a door frame 400 and is provided with a first pivot shaft 101; the second hinge main body 200 is used for being mounted on the door leaf 500 and is provided with a second pivot shaft 208; the first pivot shaft 101 is pivotally connected to the second pivot shaft 208, and the second hinge main body 200 has a first position and a second position with respect to the first hinge main body 100. For example, the position when the door 500 is closed is the first position, and the position when the door 500 is opened to the maximum is the second position.

In some embodiments of the present invention, as shown in fig. 2 to 4, the first hinge main body 100 includes a first hinge front main body 105 and a first hinge rear main body 106, as shown in fig. 8 to 10, bolt holes are provided on the first hinge front main body 105 and the first hinge rear main body 106, and the first hinge front main body 105 and the first hinge rear main body 106 are fixed to both sides of the door frame 400 by bolts. Normally, the first hinge front body 105 is provided with a first pivot shaft 101.

Second hinge main part 200 includes main part 206 before the second hinge and main part 207 behind the second hinge, is equipped with the bolt hole on main part 206 before the second hinge and the main part 207 behind the second hinge similarly, and main part 206 before the second hinge and main part 207 behind the second hinge pass through bolt fastening clamp in the both sides of door leaf 500. Typically, a second pivot 208 is provided on the second hinge front body 206.

As shown in fig. 6, at least one end surface of the first pivot shaft 101, which is in contact with the second pivot shaft 208, is provided with a first limiting hole 102, and a first set angle a is formed between a direction of a connection line between a center of the first limiting hole 102 and a center of the first pivot shaft 101 and a direction of the second hinge main body 200 at the first position.

As shown in fig. 7, a limiting ball 201 is disposed on an end surface of the second pivot shaft 208, which is in contact with the first pivot shaft 101, and when the second hinge main body 200 rotates from the first position to the second position relative to the first hinge main body 100, the limiting ball 201 is driven to slide into the first limiting hole 102 to limit the second hinge main body 200.

Specifically, as shown in fig. 5 and 7, a first hole 104 and a second hole 205 for pivotal connection are respectively disposed at the center positions of the first pivot shaft 101 and the second pivot shaft 208, the first hole 104 and the second hole 205 have the same diameter, and the rotating shaft 300 passes through the first hole 104 and the second hole 205. When the door leaf 500 drives the second hinge main body 200 to switch between the first position and the second position relative to the first hinge main body 100, the rotating shaft 300 can rotate in the first hole 104 and the second hole 205.

As shown in fig. 2, 6, and 12, a first stopper hole 102 is formed in at least one end surface of the first pivot shaft 101, which is in contact with the second pivot shaft 208, and a first set angle a is formed between a direction of a line connecting a center of the first stopper hole 102 and a center of the first pivot shaft 101 and a direction of the second hinge main body 200 at the first position. For example, the first set angle a is 60 °.

The end face of the second pivot shaft 208, which is in contact with the first pivot shaft 101, is provided with a limiting ball 201, when a user applies an acting force to the door leaf 500, so that the door leaf 500 is converted from the first position to the second position, that is, when the door leaf 500 is converted from the closed position to the open position, the door leaf 500 drives the second hinge main body 200 to rotate from the first position to the second position relative to the first hinge main body 100, in the process, the limiting ball 201 arranged on the end face of the second pivot shaft 208 slides into the first limiting hole 102, and the limiting effect of the first limiting hole 102 on the limiting ball 201 is utilized, so that the purpose of limiting the second hinge main body 200 is achieved.

In the above scheme, the limiting holes and the limiting beads 201 which are matched with each other are arranged on the first pivoting shaft 101 and the second pivoting shaft 208, the limiting effect of the limiting beads 201 by the limiting holes is utilized to achieve the limiting effect on the door leaf 500, the limiting mechanism which is additionally arranged on the ground and used for blocking the door leaf 500 can be avoided, on one hand, the waterproof sealing performance on the ground of a train is improved, on the other hand, the situation that people walking are caught up can also be avoided, and the potential safety hazard is reduced.

Further, a second limiting hole 103 is further formed in at least one end face of the first pivot shaft 101, which is in contact with the second pivot shaft 208, and a connecting line between a center of the second limiting hole 103 and a center of the first pivot shaft 101 deviates from a second set angle B in a direction in which the second hinge main body 200 rotates from the second position to the first position from a direction in which the second hinge main body 200 rotates from the first position. For example, the second set angle B is 5 °.

Specifically, as shown in fig. 3, 6, and 12, the second stopper hole 103 functions to provide the door 500 with a self-pressing function, and the position of the second stopper hole 103 on the end surface of the first pivot shaft 101 is related to the direction in which the door 500 is closed.

For example, when the door 500 is switched from the second position to the first position by an external force, the limiting ball 201 slides out of the first limiting hole 102 and slides into the second limiting hole 103 by the external force, and the connecting line direction between the center of the second limiting hole 103 and the center of the first pivot shaft 101 deviates from the second set angle B along the direction of rotation from the second position to the first position from the direction of the second hinge main body 200 when in the first position, so that the limiting ball 201 does not directly slide into the bottom of the second limiting hole 103 when sliding into the second limiting hole 103.

That is, when the door 500 is at the first position, the center of the position-limiting bead 201 and the center of the second position-limiting hole 103 have a deviating distance therebetween. Just because the center of the limiting bead 201 is not aligned with the center of the second limiting hole 103, the limiting bead 201 has a tendency of sliding towards the bottom of the second limiting hole 103 under the action of gravity, and then, under the action of the tendency, the door leaf 500 has a self-pressing function.

In the above scheme, the hinge is used for realizing the self-pressing function of the door leaf 500, and the technical problems of poor sealing and waterproof effects caused by gradually weakened magnetic stripe suction in the prior art are solved; and because magnetic stripe suction weakens, the vehicle operation can make the room door of drenching with the rain constantly open, influences the room life of drenching with the rain, even has the technical problem of potential safety hazard.

In some embodiments of the present invention, the first position-limiting hole 102 and the second position-limiting hole 103 are blind holes, and the depth of the blind holes is 1/4-1/2 of the radius of the position-limiting ball 201.

In the above scheme, since the self-limiting and self-pressing functions of the door leaf 500 are realized by utilizing the limiting function of the limiting hole on the limiting bead 201, the depth of the limiting bead 201 in the first limiting hole 102 and the second limiting hole 103 cannot be too small, so that the limiting effect of the limiting bead 201 on the limiting hole is avoided being lost, and the self-limiting and self-pressing functions of the door leaf 500 cannot be realized. Of course, the depth of the limiting beads 201 in the first limiting hole 102 and the second limiting hole 103 cannot be too large, so that the limiting beads 201 cannot slide out when being clamped in the first limiting hole 102 and the second limiting hole 103 or cannot slide out when a large acting force is applied, and inconvenience is caused to the operation of personnel.

Therefore, the first limiting hole 102 and the second limiting hole 103 are blind holes, and the depth of the blind holes is 1/4-1/2 of the radius of the limiting ball 201. Therefore, the problem that the limiting ball 201 is not limited by the limiting holes due to too small depth of the limiting ball 201 in the first limiting hole 102 and the second limiting hole 103, and the problem that the limiting ball 201 cannot slide out when the limiting ball 201 is clamped in the first limiting hole 102 and the second limiting hole 103 due to too large depth of the first limiting hole 102 and the second limiting hole 103 can be avoided, and normal work of the shower room hinge disclosed by the invention is ensured.

Further, a connecting line between the center of the first limiting hole 102 and the center of the second limiting hole 103 forms an arc with the center of the first pivot shaft 101 as a center.

That is, the center of the first limiting hole 102 and the center of the second limiting hole 103 are located on a circle having the center of the first pivot shaft 101 as the center of the circle and the distance between the center of the first limiting hole 102/the second limiting hole 103 and the center of the first pivot shaft 101 as the radius.

Further, a guide groove for rolling the limiting bead 201 may be further provided between the first limiting hole 102 and the second limiting hole 103.

In the above scheme, the guide groove for guiding the limiting bead 201 to roll is arranged, so that the limiting bead 201 is switched between the first position and the second position according to a given route, the limiting bead 201 is prevented from slipping, and the hinge cannot work normally.

Further, the present invention may also limit the position and size of the second limiting hole 103 so that the door 500 has an automatic closing function.

In detail, as shown in fig. 4 and 12, when the second hinge main body 200 drives the limiting bead 201 to rotate from the second position to the first position until the center of the limiting bead 201 is located at the edge of the second limiting hole 103, a third set angle C is formed between a direction of a connecting line between the center of the limiting bead 201 and the center of the first pivot shaft 101 and a direction of the second hinge main body 200 at the first position.

For example, when the critical angle when the door 500 is designed to be automatically closed is 17 °, that is, the third set angle C is 17 °, and when the door 500 is switched from the second position to the first position under the action of an external force, when the door 500 moves to a position having an angle of 17 ° with the first position of the door 500, the center of the limiting bead 201 is just located at the edge of the second limiting hole 103, and under the action of gravity of the door 500, the limiting bead 201 continues to slide toward the bottom of the second limiting hole 103, so that the self-closing function of the second hinge main body 200 is realized, that is, the door 500 has the function of automatically closing.

In the above scheme, the hinge is used to enable the door leaf 500 to have the functions of automatic closing and self-pressing, so that even if a user does not completely close the door leaf 500, the door leaf 500 can also realize automatic closing and self-pressing by using the structural characteristics of the hinge, the sealing performance of the shower room door leaf 500 is further improved, and the shower room door is closed more conveniently and reliably.

In some embodiments of the present invention, an end surface of the second pivot shaft 208 contacting the first pivot shaft 101 is provided with an axially concave mounting hole 202, an elastic support 203 is arranged in the mounting hole 202, and the limiting bead 201 is supported by the elastic support 203 to protrude/retract from the end surface of the second pivot shaft 208 contacting the first pivot shaft 101.

In the above solution, the elastic support 203 in the mounting hole 202 provides power for the end surface of the limiting bead 201 protruding out of the second pivot shaft 208, and also provides a retraction margin for the end surface of the limiting bead 201 exiting the second pivot shaft 208.

In detail, in the first embodiment, the end surface of the second pivot shaft 208 is not provided with the second limiting hole 103, so when the door leaf 500 is in the closed state, the second hinge main body 200 is located at the first position, and the limiting bead 201 compresses the elastic support 203 under the interference force of the end surface of the second pivot shaft 208 and is located in the installation hole 202.

When the door leaf 500 is subjected to the external force to be converted from the first position to the second position, the door leaf 500 drives the second pivot shaft 208 of the second hinge main body 200 to rotate, the limiting ball 201 slides into the first limiting hole 102 under the driving of the second pivot shaft 208, and when the limiting ball 201 slides to the first limiting hole 102, the first limiting hole 102 is of a concave structure, so that the limiting ball 201 protrudes out of the end face of the second pivot shaft 208 under the acting force of the elastic support member 203 and is clamped in the first limiting hole 102, and the limiting effect on the door leaf 500 is realized.

In the second embodiment, the end surface of the second pivot shaft 208 is provided with the second limiting hole 103, so when the door leaf 500 is in the closed state, the second hinge main body 200 is located at the first position, and the limiting ball 201 is located in the second limiting hole 103 at this time to press the second hinge main body 200.

When the door leaf 500 is subjected to external force to be converted from the first position to the second position, the door leaf 500 drives the second pivot shaft 208 of the second hinge main body 200 to rotate, the limiting ball 201 slides into the first limiting hole 102 under the driving of the second pivot shaft 208, and in the sliding process, due to the interference acting force of the end face of the second pivot shaft 208, the limiting ball 201 compresses the elastic support piece 203 to retract into the mounting hole 202, and slides or rolls along with the rotation of the second pivot shaft 208. When the limiting bead 201 slides to the first limiting hole 102, since the first limiting hole 102 is a concave structure, the limiting bead 201 protrudes out of the end surface of the second pivot 208 under the action of the elastic support 203 and is clamped in the first limiting hole 102, thereby limiting the door leaf 500.

The elastic support 203 in the above solution is preferably a spring.

Further, as shown in fig. 7, the mounting hole 202 is a through hole, an internal thread is provided on a side wall of the mounting hole 202, a screw 204 is provided in the mounting hole 202, as shown in fig. 11, an external thread of the screw 204 matches with the internal thread, and one end of the screw 204 abuts against the elastic support 203.

In the above solution, the mounting hole 202 is a through hole extending axially along the second pivot shaft 208, the screw 204 is disposed in the mounting hole 202, and the side wall of the mounting hole 202 and the side wall of the screw 204 are respectively provided with an internal thread and an external thread matching with each other. One end of the screw 204 is a free end, and the other end abuts against the elastic support 203.

A structure convenient for screwing the screw 204 can be arranged at the free end of the screw 204, so that the compression amount of the elastic support member 203 can be adjusted by adjusting the displacement of the screw 204 in the mounting hole 202, and further the pressing force of the limiting ball 201 in the first limiting hole 102 and the second limiting hole 103 can be adjusted, thereby realizing the adjustment of the hinge torque value.

Above-mentioned scheme can adjust the torque value of hinge, when the loose condition appears in frequent use in the hinge, just can adjust the torque value of hinge through tightening screw 204, convenient operation.

Further, in order to improve the self-limiting, self-closing and self-pressing functions of the hinge on the door leaf 500, as shown in fig. 6, two sets of first limiting holes 102 and second limiting holes 103 are provided on at least one end surface of the first pivot shaft 101, which is in contact with the second pivot shaft 208, and the two sets of first limiting holes 102 and second limiting holes 103 are symmetrical with respect to the center of the first pivot shaft 101.

As shown in fig. 8, two limiting beads 201 are disposed on the end surface of the second pivot shaft 208 contacting the first pivot shaft 101, and the two limiting beads 201 correspond to two sets of first limiting holes 102 and second limiting holes 103.

The invention also provides a rail train, wherein a shower room for passengers is arranged on the rail train, and the shower room hinge is arranged on the shower room.

The hinge limiting function is realized by arranging the angle of the limiting hole in the first pivot shaft 101 and setting the maximum rotation angle of the hinge, so that the ground waterproof performance of a train can be effectively protected, and meanwhile, the risk of being caught by pedestrians is effectively avoided; this structure can set up different spacing hole angles at first pivotal axis 101, realizes the different biggest turned angle of hinge, and it is more convenient than changing spacing backstop position again among the prior art and realize different turned angle, and protection ground waterproof nature is more excellent.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A shower room hinge comprises:

the method is characterized in that:

the position when the door leaf is closed is a first position, and the position when the door leaf is opened to the maximum is a second position;

the end face, in contact with the first pivot shaft, of the second pivot shaft is provided with a limiting ball, and when the second hinge main body rotates to a second position from a first position relative to the first hinge main body, the second hinge main body drives the limiting ball to slide into the first limiting hole to limit the second hinge main body;

2. The shower room hinge as claimed in claim 1, wherein:

the second hinge main body drives the limiting ball to rotate from the second position to the first position until the center of the limiting ball is located at the edge of the second limiting hole, and a third set angle is formed between the direction of a connecting line of the center of the limiting ball and the center of the first pivot shaft and the direction of the second hinge main body when the second hinge main body is at the first position.

3. The shower room hinge as claimed in claim 1, wherein:

and a connecting line of the center of the first limiting hole and the center of the second limiting hole forms an arc taking the center of the first pivot shaft as the center of a circle.

4. A shower room hinge according to any one of claims 1 to 3, characterized in that:

the end face of the second pivot shaft, which is in contact with the first pivot shaft, is provided with an axially-recessed mounting hole, an elastic supporting piece is arranged in the mounting hole, and the limiting ball is supported by the elastic supporting piece to protrude/retract from the end face of the second pivot shaft, which is in contact with the first pivot shaft.

5. The shower room hinge as claimed in claim 4, wherein: the elastic supporting piece is a spring.

6. The shower room hinge as claimed in claim 4, wherein:

the mounting hole is a through hole, the side wall of the mounting hole is provided with an internal thread, a screw rod is arranged in the mounting hole, the external thread of the screw rod is matched with the internal thread, and one end of the screw rod is abutted to the elastic supporting piece.

7. The shower room hinge as claimed in claim 1, wherein:

the first limiting hole and the second limiting hole are blind holes, and the depth of each blind hole is 1/4-1/2 of the radius of the limiting ball.

8. The shower room hinge as claimed in claim 1, wherein:

and a guide groove for enabling the limiting ball to roll is arranged between the first limiting hole and the second limiting hole.

9. The shower room hinge as claimed in claim 1, wherein:

at least one end face of the first pivot shaft, which is in contact with the second pivot shaft, is provided with two groups of first limiting holes and second limiting holes, and the two groups of first limiting holes and the second limiting holes are symmetrical about the center of the first pivot shaft;

10. A rail train, its characterized in that: comprising a shower room hinge according to any one of claims 1 to 9.