Rotating tooth locking mechanism

Abstract

The utility model relates to the technical field of amusement equipment seat pressing lever locking, and discloses a rotating tooth locking mechanism which comprises a rack guide cylinder, a rack is inserted in the rack guide cylinder, a rotating shaft is fixedly installed in the rack guide cylinder, and a tooth claw is rotationally connected to the surface of the rotating shaft. The rotating tooth locking mechanism enables the spring to form press fit with the tooth claw; in the ejection process of the air cylinder rod, the transmission swing rod is controlled to deflect, the transmission swing rod is pressed to the rear end of the tooth claw after deflection, then the tooth claw overturns under the action of the swing rod and the rotating shaft, the tooth claw is not in contact with the rack, and unlocking of the rack is achieved. According to the mechanism, the functions that the tooth claw and the rack are rapidly and smoothly meshed in place, the rack slides upwards and is self-locked downwards are achieved, unlocking can be achieved when the air cylinder ejects the tooth claw out of the rack, and self-locking can be achieved when the air cylinder retracts and the spring ejects the tooth claw are achieved, double locking is achieved through the tooth shape and the spring in the whole operation process, and the safety coefficient is higher; and the safety can be greatly improved through the self-locking mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of amusement equipment seat pressure lever locking, in particular to a rotating tooth locking mechanism. BACKGROUND

[0002] Amusement park is a comprehensive entertainment place, mainly provides for the citizen to carry out entertainment and leisure activities. It usually contains various amusement facilities, such as carousel, roller coaster, ferris wheel, bump car etc., these facilities not only provide the opportunity for the development for children, but also can let adults enjoy entertainment, the amusement facilities of amusement park many press down seat through its special locking mechanism, tightly fixed passenger on the seat, prevent the accidental injury caused by passenger because of separation from seat.

[0003] However, the inventor found that there are still the following problems in the actual operation process: the seat locking mechanism of the prior art of the amusement park is prone to large friction during the engagement of the inclined surface on the tooth claw and the inclined surface on the rack, which cannot be engaged to the bottom, and there is a certain safety hazard; at the same time, because the tooth shape is consistent, it cannot be unlocked due to blocking during rotation, and there is a certain risk of passenger retention in the seat.

[0004] Based on this, the utility model provides a rotating tooth locking mechanism. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a rotating tooth locking mechanism, which has the advantages of rack upward sliding and unlocking, and downward self-locking, solving the problems raised in the background art.

[0006] The utility model provides the following technical scheme: a rotating tooth locking mechanism, including rack guide cylinder, the inside of rack guide cylinder is inserted with rack, the inside of rack guide cylinder is fixedly installed with rotating shaft, the surface of rotating shaft is rotatably connected with tooth claw, the inside of tooth claw is attached with spring, the inside of spring is fixedly connected with the outside of rack guide cylinder, the outside of rack guide cylinder is fixedly installed with transmission swing rod, the inside of transmission swing rod is fixedly connected with air cylinder, the inside of air cylinder is fixedly connected with the outside of rack guide cylinder.

[0007] Preferably, the side surface of the tooth claw is provided with a tooth claw working surface and a tooth claw lower inclined surface.

[0008] Preferably, the outside of the rack is provided with a plurality of rack upper inclined surfaces and rack lower inclined surfaces.

[0009] Preferably, the two sides of the tooth claw are attached to the rack guide cylinder.

[0010] Preferably, the inside of the transmission swing rod is attached to the outside of the tooth claw.

[0011] Preferably, the inner part of the upper and lower inclined surfaces of the rack is attached with the working surface of the pawl and the lower inclined surface of the pawl.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The rotating tooth locking mechanism is composed of the rack, the pawl, the rotating shaft, the spring, the rack guide cylinder, the transmission swing lever and the air cylinder, the pawl is engaged with the rack under the action of the spring force, the included angle between the lower inclined surface of the rack and the vertical line is small, so that the rack is pushed open by the inclined surface when sliding upward, the included angle between the upper inclined surface of the rack and the vertical line is large, so that the force direction of the lower tooth surface passes through the rotating shaft, the rack can slide when moving upward, the pawl and the rack are engaged to form self-locking when moving downward, and in this state, the air cylinder limits the pawl through the transmission swing lever, so that the spring presses the pawl; during the ejection of the air cylinder rod, the control transmission swing lever is deflected, the deflected transmission swing lever is pressed to the rear end of the pawl, and then the pawl is turned over under the action of the swing lever and the rotating shaft, so that the pawl is out of contact with the rack, and the rack is unlocked. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model device;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model pawl;

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model rack;

[0017] Figure 4 It is a schematic diagram of the included angle of the utility model pawl;

[0018] Figure 5 It is a schematic diagram of the intersection of the upper inclined surface of the utility model pawl and the straight line perpendicular to the inclined surface and passing through the rotating shaft center.

[0019] In the figure: 1, rack; 101, upper inclined surface of the rack; 102, lower inclined surface of the rack; 2, pawl; 201, working surface of the pawl; 202, lower inclined surface of the pawl; 3, rotating shaft; 4, spring; 5, rack guide cylinder; 6, transmission swing lever; 7, air cylinder. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0021] Please refer to Figures 1-4 A rotating tooth locking mechanism, including a rack guide cylinder 5, the inside of the rack guide cylinder 5 is inserted with a rack 1, the inside of the rack guide cylinder 5 is fixedly installed with a rotating shaft 3, the surface of the rotating shaft 3 is rotationally connected with a tooth claw 2, the tooth claw 2 is engaged with the rack 1 under the action of a spring 4, the included angle between the lower inclined surface 102 of the rack 1 and the vertical line is small, so that the tooth claw 2 is pushed open by the inclined surface when the rack 1 slides upward, realizing upward sliding, the included angle between the upper inclined surface of the rack 1 and the vertical line is large, so that the force direction of the lower tooth surface passes through the rotating shaft 3, the rack 1 can slide when moving upward, the tooth claw 2 and the rack 1 are engaged to form self-locking when moving downward, and in this state, the cylinder limits the tooth claw 2 through the transmission swing rod, so that the spring presses and combines the tooth claw 2; during the ejection of the cylinder rod, the control transmission swing rod is deflected, the transmission swing rod is pressed to the rear end of the tooth claw 2 after deflection, and then the tooth claw 2 is turned over under the action of the swing rod and the rotating shaft, so that the tooth claw 2 loses contact with the rack 1, realizing the unlocking of the rack 1. This mechanism realizes the smooth engagement of the tooth claw 2 and the rack 1, the functions of upward sliding of the rack 1, downward self-locking, unlocking of the cylinder ejecting the tooth claw 2 away from the rack 1, and self-locking of the cylinder retracting the spring pressing the tooth claw 2, the safety coefficient is higher through the double locking of the tooth shape and the spring 4 in the whole operation process, and the self-locking mode can greatly improve the safety, the inside of the tooth claw 2 is attached with the spring 4, the inside of the spring 4 is fixedly connected with the outside of the rack guide cylinder 5, the outside of the rack guide cylinder 5 is fixedly installed with the transmission swing rod 6, the inside of the transmission swing rod 6 is fixedly connected with the cylinder 7, the inside of the cylinder 7 is fixedly connected with the outside of the rack guide cylinder 5, the side surface of the tooth claw 2 is provided with a tooth claw working surface 201 and a tooth claw lower inclined surface 202, the outside of the rack 1 is provided with a plurality of rack upper inclined surfaces 101 and rack lower inclined surfaces 102, the two sides of the tooth claw 2 are attached with the rack guide cylinder 5, the inside of the transmission swing rod 6 is attached with the outside of the tooth claw 2, the inside of the rack upper inclined surface 101 and the rack lower inclined surface 102 is attached with the tooth claw working surface 201 and the tooth claw lower inclined surface 202.

[0022] Please refer to Figure 1The claw working surface 201 of the claw 2 is the working surface that prevents the rack 1 from sliding downward, and is also the surface that is prone to friction with the surface of the rack 1 during the rotation and engagement process. The claw lower inclined surface 202 of the claw 2 is the surface that is in contact with the lower inclined surface of the rack 1 at the end of the insertion and engagement process, and has the function of positioning and preventing friction. The special tooth angle design adopted by the present application reduces the friction between the claw working surface 201 of the claw 2 and the rack upper inclined surface 101 of the rack 1 during the engagement process, and the friction surfaces tend to move away from each other during the engagement process, so that the claw 2 can be quickly and smoothly engaged to the bottom without being stuck halfway.

[0023] Please refer to Figure 2 and Figure 3 The rack lower inclined surface 102 of the rack 1 has a small angle with the vertical line, so that the rack 1 can be pushed upward by the inclined surface to achieve upward sliding. The upper inclined surface of the rack 1 has a large angle with the vertical line, so that the force direction of the lower tooth surface passes through the rotating shaft 3, and the claw 2 is self-locked when the rack 1 slides downward. The rack upper inclined surface 101 is prone to friction with the claw working surface 201 of the claw 2 during the engagement process of the claw.

[0024] Please refer to Figure 4 and Figure 5 The conditions for smooth engagement include two points: first, the friction surfaces of the claw 2 and the rack 1 have a small angle as shown in Figure 4 , and the direction of the angle cannot be changed. The angle ensures that the rack upper inclined surface 101 of the rack 1 does not block the rotation of the claw 2 in the later stage of engagement. Second, after complete engagement, the intersection of the claw working surface 201 of the claw 2 and the straight line perpendicular to the inclined surface and passing through the rotating shaft center is located outside the tooth tip of the rack 1. In this way, the two friction surfaces tend to move away from each other during the rotation and engagement process, avoiding friction blockage, enabling quick engagement, and further enabling quick and reliable engagement, and making it easy to engage to the bottom, avoiding being stuck halfway or the situation that the engagement friction force becomes larger and larger.

[0025] The working principle is that the pawl 2 is engaged with the rack 1 under the action of the spring 4, the included angle between the lower inclined surface 102 of the rack 1 and the vertical line is small, so that the rack 1 slides upward by using the inclined surface to push the pawl 2 open, the upper inclined surface of the rack 1 has a large included angle with the vertical line, so that the force direction of the lower tooth surface passes through the rotating shaft 3, the rack 1 can slide when moving upward, the pawl 2 and the rack 1 are engaged to form self-locking when moving downward, and in this state, the cylinder limits the pawl 2 through the transmission swing lever, so that the spring presses the pawl 2; during the ejection of the cylinder rod, the control transmission swing lever is deflected, the deflected transmission swing lever is pressed to the rear end of the pawl 2, and then the pawl 2 is turned over under the action of the swing lever and the rotating shaft, so that the pawl 2 loses contact with the rack 1, and the rack 1 is unlocked. This mechanism realizes the functions of quick and smooth engagement of the pawl 2 and the rack 1, upward sliding of the rack 1, downward self-locking, unlocking of the cylinder when ejecting the pawl 2 away from the rack 1, and self-locking of the cylinder when retracting the spring to press the pawl 2.

[0026] It should be noted that the relative terms such as first and second, and the like are used herein solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotary tooth locking mechanism, characterized by, The utility model provides a kind of gear rack guiding cylinder (5), the inside of gear rack guiding cylinder (5) is inserted with rack (1), the inside of gear rack guiding cylinder (5) is fixedly installed with rotating shaft (3), the surface of rotating shaft (3) is rotatably connected with pawl (2), the inside of pawl (2) is attached with spring (4), the inside of spring (4) is fixedly connected with the outside of gear rack guiding cylinder (5), the outside of gear rack guiding cylinder (5) is fixedly installed with transmission swing link (6), the inside of transmission swing link (6) is fixedly connected with air cylinder (7), the inside of air cylinder (7) is fixedly connected with the outside of gear rack guiding cylinder (5).

2. A rotary tooth locking mechanism according to claim 1, wherein: The side of the pawl (2) is provided with a pawl working surface (201) and a pawl lower inclined surface (202).

3. A rotary tooth locking mechanism according to claim 1, wherein: The outside of the rack (1) is provided with a plurality of rack upper inclined surfaces (101) and rack lower inclined surfaces (102).

4. A rotary tooth locking mechanism according to claim 1, wherein: The two sides of the pawl (2) are attached to the gear rack guiding cylinder (5).

5. A rotary tooth locking mechanism according to claim 1, wherein: The inside of the transmission swing link (6) is attached to the outside of the pawl (2).

6. A rotary tooth locking mechanism according to claim 3, wherein: The inside of the rack upper inclined surface (101) and the rack lower inclined surface (102) is attached with the pawl working surface (201) and the pawl lower inclined surface (202).

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