CN111231798A

CN111231798A - Subway pull ring capable of changing rigidity

Info

Publication number: CN111231798A
Application number: CN202010037234.9A
Authority: CN
Inventors: 邓妹仔
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-06-05

Abstract

The invention relates to the technical field of subway accessories and discloses a subway pull ring capable of changing into rigidity, which comprises a subway cross rod, wherein a fixed sleeve is fixedly sleeved on the outer surface of the subway cross rod, the bottom of the fixed sleeve is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a connecting ball, the outer side of the connecting ball is movably connected with a ball sleeve, the bottom of the ball sleeve is fixedly communicated with a hollow pipe, and the bottom of the hollow pipe is fixedly connected with a pull ring shell. When a passenger holds the pull ring seat, the pull ring seat can be moved downwards, meanwhile, the slide seat slides downwards through the guide rope, the four swing arms on the outer side of the slide seat can be expanded outwards, so that the bottom plate is pushed outwards, the friction plate on the surface of the bottom plate can be attached to the inner wall of the ball sleeve, the friction teeth on the friction plate can be matched with the friction limiting grooves on the inner portion of the ball sleeve, the friction force is increased, the ball sleeve and the connecting ball are fixed mutually, the subway pull ring can be enabled to be rigid when stressed, and the passenger can be prevented from rising.

Description

Subway pull ring capable of changing rigidity

Technical Field

The invention relates to the technical field of subway accessories, in particular to a subway pull ring capable of being changed into rigidity.

Background

At present, most of pull rings on subways are connected by nylon soft belts, the pull rings can only be controlled to be incapable of moving on a subway cross bar, but the subway needs to be decelerated and stopped before entering a station or is accelerated when leaving the station, the part below the cross bar of the pull ring cannot bear inertia force, standing passengers can erect the pull rings back and forth when grasping the pull rings, and the subway pull rings are not easy to fall down, but unstable erection causes people to feel uncomfortable, even touch other people, and is particularly embarrassed, so that the subway pull rings with variable rigidity are provided to solve the problems.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a subway pull ring that can be changed to rigidity by applying a force, and has an advantage of preventing a rise.

The invention adopts the following technical scheme for realizing the technical purpose: the utility model provides a can become rigid subway pull ring, includes the subway horizontal pole, the fixed cover of surface of subway horizontal pole is equipped with fixed cover, the bottom fixedly connected with connecting rod of fixed cover, the bottom fixedly connected with of connecting rod connects the ball, connects the outside swing joint of ball cover, and the fixed intercommunication in bottom of ball cover has the hollow tube, and the bottom fixedly connected with pull ring shell of hollow tube, the inboard of pull ring shell are provided with the pull ring seat, and the equal fixed mounting in both ends of pull ring seat has the slider, and the bottom of slider is fixed to be had the top to push away the spring, the equal movable mounting of two corners of the inside top of pull ring shell has guide wheel one, the inside of pull ring shell and with the junction movable mounting of hollow tube have two guide wheel two, the top of slider is fixed to.

Connect the inside of ball and seted up the bulge chamber, sliding connection has the slide on the interior roof in bulge chamber, and both sides, front and the back of slide all articulate there is the swing arm, and the swing arm is kept away from the one end of slide and is articulated to have a bottom plate, and the one side fixed mounting that the slide was kept away from to the bottom plate has the friction disc, and the friction disc is fixed on the surface according to the friction tooth that has the equidistance to arrange, set up on the inner wall of ball cover with the corresponding friction limit groove of friction tooth, the bottom fixed mounting of slide has reset spring, the bottom of connecting the ball.

Further, the guide rope respectively rounds the top of the first guide wheel and the bottom of the second guide wheel upwards, the guide rope is fixedly connected with the bottom of the sliding seat, and the installation position of the guide rope is changed through the first guide wheel and the second guide wheel.

Furthermore, the pull ring seat is composed of a hard plastic upper half part and an elastic rubber lower half part, and the elastic rubber is used for preventing palm clamping injury.

Further, two the inside that the one end that the slider was carried on the back mutually runs through and extends to the pull ring shell, the inboard of pull ring shell is seted up with the corresponding bar mouth of slider, and the bar mouth is convenient for the slider to slide from top to bottom.

Further, the bottom plate and the friction plate are both curved surfaces, so that the bottom plate and the friction plate can be conveniently attached to the inner wall of the ball sleeve, the cross sections of the friction teeth and the friction limiting groove are both trapezoidal, the friction teeth and the friction limiting groove can be guaranteed to be mutually matched, and friction force is increased.

Furthermore, the diameter of the ball sleeve is smaller than five centimeters, and the relative rotation angle of the ball sleeve and the connecting ball is 0-30 degrees, so that the connecting rod can be prevented from being broken due to overlarge angle rotation.

Furthermore, the distance between the bottom of the pull ring shell and the bottom of the subway cross bar is not more than thirty centimeters, so that the pull ring shell can be mostly positioned at the head of a passenger, and the hand of the passenger can be pulled and stressed.

The invention has the following beneficial effects:

1. this subway pull ring that becomes rigidity variably, when the passenger held the pull ring seat, can make its downward displacement, the pull ring seat passes through the guide rope simultaneously and slides the slide down, and four swing arms in the slide outside will outwards expand, thereby outwards promote the bottom plate, the friction disc on bottom plate surface will laminate each other with the inner wall of ball cover, wherein friction tooth on the friction disc can agree with each other with the friction limit slot on the ball cover is inside, increase frictional force, thereby guaranteed ball cover and connection ball reciprocal anchorage, thereby ensure subway pull ring atress and become rigidity, prevent towering of passenger.

2. When the passenger loosens the pull ring seat, the pushing spring enables the pull ring seat to reset upwards, and when the return spring enables the sliding seat to reset upwards, the swing arm can be folded, the bottom plate can be contracted in the convex cavity, so that the friction plate can be separated from the inner wall of the ball sleeve, and finally the subway pull ring can restore to the original flexibility.

Drawings

FIG. 1 is a sectional view of the present invention in a normal state;

FIG. 2 is an enlarged cross-sectional view of a portion of FIG. 1 in accordance with the present invention;

FIG. 3 is a structural cross-sectional view of the present invention in a stressed state;

FIG. 4 is an enlarged cross-sectional view of a portion of FIG. 3 in accordance with the present invention;

FIG. 5 is a sectional view showing a connecting structure of a connecting ball and a ball socket according to the present invention;

FIG. 6 is an enlarged cross-sectional view of a portion of FIG. 5 in accordance with the present invention;

fig. 7 is a top sectional view of the connecting ball and ball sleeve connecting structure of the present invention.

In the figure: 1-subway cross bar, 2-fixing sleeve, 3-connecting rod, 4-connecting ball, 5-ball sleeve, 6-hollow tube, 7-pull ring shell, 8-pull ring seat, 9-slide block, 10-pushing spring, 11-guide wheel I, 12-guide wheel II, 13-guide rope, 41-convex cavity, 42-slide seat, 43-swing arm, 44-bottom plate, 45-friction plate, 46-friction tooth, 47-friction limiting groove, 48-reset spring and 49-groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 3, a subway pull ring with rigidity changeable comprises a subway cross bar 1, a fixed sleeve 2 is fixedly sleeved on the outer surface of the subway cross bar 1, a connecting rod 3 is fixedly connected to the bottom of the fixed sleeve 2, a connecting ball 4 is fixedly connected to the bottom of the connecting rod 3, a ball sleeve 5 is movably connected to the outer side of the connecting ball 4, the diameter of the ball sleeve 5 is less than five centimeters, the relative rotation angle between the ball sleeve 5 and the connecting ball 4 is 0-30 degrees, so that the connecting rod 3 can be prevented from being broken due to excessive rotation, a hollow tube 6 is fixedly communicated with the bottom of the ball sleeve 5, a pull ring shell 7 is fixedly connected to the bottom of the hollow tube 6, the distance between the bottom of the pull ring shell 7 and the bottom of the subway cross bar 1 is not more than thirty centimeters, most of the pull ring shell 7 can be positioned at the head of a passenger, the hand holding force of the passenger can be, the pull ring seat 8 is made of hard plastic at the upper half part, the elastic rubber at the lower half part is used for preventing palm clamping, sliding blocks 9 are fixedly mounted at two ends of the pull ring seat 8, one ends of the two sliding blocks 9, which are opposite to each other, penetrate through and extend into the pull ring shell 7, a strip-shaped opening corresponding to the sliding blocks 9 is formed in the inner side of the pull ring shell 7, the strip-shaped opening facilitates the up-and-down sliding of the sliding blocks 9, a pushing spring 10 is fixedly arranged at the bottom of the sliding blocks 9, the pushing spring 10 provides restoring force for the pull ring seat 8, guide wheels I11 are movably mounted at two corners above the inner part of the pull ring shell 7, two guide wheels II 12 are movably mounted in the inner part of the pull ring shell 7 and at the connection part with the hollow tube 6, a guide rope 13 is fixedly arranged at the top of the sliding blocks 9, the guide rope 13 upwards bypasses the top, and draw and change the mounted position of guide rope 13 through guide wheel 11 and guide wheel two 12, the cross section of guide rope 13 can be the flat slice form simultaneously, or be circular form, and the rope of flat slice form can prevent two ropes intertwine, and the rope of circular form can intertwine, does not also influence the pulling to slide 42.

Referring to fig. 2, 4, 5, 6 and 7, a convex cavity 41 is formed inside the connecting ball 4, the convex cavity 41 is in a cross shape, the convex cavity protrudes upwards at the intersection of the cross shape, a sliding seat 42 is slidably connected to the inner top wall of the convex cavity 41, the guide rope 13 is fixedly connected to the bottom of the sliding seat 42, swing arms 43 are hinged to two sides, the front and the back of the sliding seat 42, a bottom plate 44 is hinged to one end of the swing arm 43 away from the sliding seat 42, a friction plate 45 is fixedly mounted on one side of the bottom plate 44 away from the sliding seat 42, the bottom plate 44 and the friction plate 45 are both in a curved shape and also in a circular sheet shape, so as to be conveniently attached to the inner wall of the ball sleeve 5, friction teeth 46 arranged at equal intervals are fixed on the surface of the friction plate 45, friction limiting grooves 47 corresponding to the friction teeth 46 are formed on the inner wall of the ball sleeve 5, the cross sections of the friction teeth, increase frictional force, the size of friction limit groove 47 will be greater than the size of friction tooth 46 simultaneously, can let friction tooth 46 be absorbed in the inside of friction limit groove 47 better like this, also more convenient separation, the bottom fixed mounting of slide 42 has reset spring 48, reset spring 48 provides a restoring force for slide 42, connect the bottom of ball 4 and seted up recess 49, recess 49 can guarantee that ball cover 5 is relative time-opposing with being connected ball 4, can not roll over guide rope 13, prevent that guide rope 13 from being broken.

The working principle is as follows:

a. when the subway pull ring becomes rigid: referring to fig. 3 and 4, when a passenger holds the pull ring seat 8, the pull ring seat 8 is displaced downward, and at the same time, the slide seat 42 is slid downward by the pull ring seat 8 through the guide rope 13, and the four swing arms 43 outside the slide seat 42 expand outward, so as to push the bottom plate 44 outward, the friction plate 45 on the surface of the bottom plate 44 will be attached to the inner wall of the ball sleeve 5, wherein the friction teeth 46 on the friction plate 45 will be engaged with the friction limiting grooves 47 on the inner portion of the ball sleeve 5, so as to increase the friction force, thereby ensuring that the ball sleeve 5 and the connecting ball 4 are fixed to each other, ensuring that the subway pull ring is forced to become rigid, and preventing the passenger from rising.

b. When the subway pull ring becomes flexible: referring to fig. 1 and 2, when the passenger releases the seat 8, the pushing spring 10 returns the seat 8 upward, and the return spring 48 returns the slide 42 upward, the swing arm 43 is closed, the bottom plate 44 is retracted in the convex cavity 41, so that the friction plate 45 is separated from the inner wall of the ball sleeve 5, and finally the subway pull ring returns to the original flexibility.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a can become rigid subway pull ring, includes subway horizontal pole (1), its characterized in that: the outer surface of the subway cross bar (1) is fixedly sleeved with a fixing sleeve (2), the bottom of the fixing sleeve (2) is fixedly connected with a connecting rod (3), the bottom of the connecting rod (3) is fixedly connected with a connecting ball (4), the outer side of the connecting ball (4) is movably connected with a ball sleeve (5), the bottom of the ball sleeve (5) is fixedly communicated with a hollow tube (6), the bottom of the hollow tube (6) is fixedly connected with a pull ring shell (7), the inner side of the pull ring shell (7) is provided with a pull ring seat (8), two ends of the pull ring seat (8) are both fixedly provided with a slide block (9), the bottom of the slide block (9) is fixedly provided with a pushing spring (10), two corners above the inner part of the pull ring shell (7) are both movably provided with a guide wheel I (11), and the joint of the inner part of the pull ring shell (7) and, the top of the sliding block (9) is fixedly pressed with a guide rope (13);

protruding chamber (41) have been seted up to the inside of connecting ball (4), sliding connection has slide (42) on the interior roof of protruding chamber (41), and the both sides of slide (42), front and back all articulate have swing arm (43), and the one end that slide (42) were kept away from in swing arm (43) articulates there is bottom plate (44), and one side fixed mounting that slide (42) were kept away from in bottom plate (44) has friction disc (45), and friction disc (45) are fixed according to friction tooth (46) that have the equidistance to be arranged on the surface, set up on the inner wall of ball cover (5) and limit groove (47) with the corresponding friction of friction tooth (46), the bottom fixed mounting of slide (42) has reset spring (48), recess (49) are seted up to the bottom of connecting ball (4).

2. A transformable rigidity subway pull ring according to claim 1, characterized in that: the guide rope (13) upwards respectively bypasses the top of the first guide wheel (11) and the bottom of the second guide wheel (12), and the guide rope (13) is fixedly connected with the bottom of the sliding seat (42).

3. A transformable rigidity subway pull ring according to claim 1, characterized in that: two the inside of pull ring shell (7) is run through and extends to the one end that slider (9) carried on the back mutually, the inboard of pull ring shell (7) is seted up with the corresponding bar mouth of slider (9).

4. A transformable rigidity subway pull ring according to claim 1, characterized in that: the bottom plate (44) and the friction plate (45) are both curved, and the cross sections of the friction teeth (46) and the friction limiting grooves (47) are both trapezoidal.

5. A transformable rigidity subway pull ring according to claim 1, characterized in that: the diameter of the ball sleeve (5) is less than five centimeters, and the relative rotation angle of the ball sleeve (5) and the connecting ball (4) is 0-30 degrees.