Opening handle mechanism with stable opening and closing

Abstract

The utility model discloses an opening handle mechanism with stable opening and closing, relates to the technical field of vacuum circuit breakers, and aims to solve the problems that a conventional opening handle does not have a self-locking function in an operation process, so that misoperation of the handle is caused when the conventional opening handle is influenced by external force such as vibration and impact, and the service life of the opening handle is influenced. The vacuum circuit breaker comprises symmetrically arranged bases, a U-shaped shell and a frame-shaped connecting piece are detachably connected between the bases, an insulating substrate is detachably installed at the top of the inner wall of the U-shaped shell, and opening and closing switch assemblies are detachably installed at the bottom of the insulating substrate at equal intervals. One side of the bottom of the insulating substrate is fixedly provided with an opening and closing indication assembly, and an opening handle assembly is movably installed in one side of the U-shaped shell and comprises a U-shaped installation frame with the top end detachably connected to the bottom of the insulating substrate. The vacuum circuit breaker has the advantage of improving the limiting stability of the opening and closing states of the vacuum circuit breaker.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum circuit breaker technical field more specifically, relate to a stable open handle mechanism of opening and closing. BACKGROUND

[0002] Vacuum circuit breaker is the circuit breaker with vacuum arc extinguishing chamber, also known as arc extinguishing can occur in vacuum medium circuit breaker. Vacuum circuit breaker utilizes vacuum as arc extinguishing medium, when the contact separates, arc is generated between the contact, and arc is extinguished rapidly under vacuum environment, thereby cutting off the current, when the moving contact and static contact are separated under the action of operating mechanism, arc is generated between the contact. The contact surface emits steam under high temperature, due to the contact is designed as special shape, a magnetic field is generated when the current passes, and arc moves rapidly along the tangent direction of the contact surface under the action of the magnetic field. After part of the metal steam is condensed on the metal cylinder, arc is extinguished when the natural zero, and the dielectric strength between the contact is recovered rapidly.

[0003] At present, the traditional vacuum circuit breaker is mainly driven by electromagnetic operating mechanism to complete the closing and opening actions during use, but the premise of realizing stable closing and opening of the electromagnetic operating mechanism is the stable and continuous output of the current, so as to form a stable magnetic field to maintain the closing and opening actions. When the current fluctuates, the switch is prone to jump, in order to prevent such phenomenon, the opening and closing states of the vacuum circuit breaker can be limited by setting the opening handle, but the traditional opening handle does not have the function of self-locking during operation, and the handle is prone to malfunction when affected by external forces such as vibration and impact, thereby affecting the stability of the opening and closing state limitation of the vacuum circuit breaker. In view of this, the utility model provides a stable opening and closing opening handle mechanism. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the shortage of prior art, adapting to the actual need, providing a stable opening and closing opening handle mechanism to solve the technical problem that the traditional opening handle does not have the function of self-locking during operation, and the handle is prone to malfunction when affected by external forces such as vibration and impact, thereby affecting the stability of the opening and closing state limitation of the vacuum circuit breaker.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a stable opening and closing opening handle mechanism, which comprises symmetrically arranged bases;

[0006] The U-shaped shell and the frame-shaped connecting piece are detachably connected between the bases, the inner wall top of the U-shaped shell is detachably installed with an insulating base plate, the bottom of the insulating base plate is equidistantly detachably installed with an opening and closing switch assembly, and the bottom of the insulating base plate is fixedly provided with an opening and closing indication assembly on one side, and the opening handle assembly is movably installed in the inside of one side of the U-shaped shell.

[0007] The disconnecting handle assembly comprises a U-shaped mounting frame detachably connected to the bottom of the insulating base plate, a U-shaped supporting plate detachably mounted on the inner wall of the U-shaped mounting frame, and a rotating rod rotatably mounted in the U-shaped mounting frame and extending out of the U-shaped housing at one end, wherein the end of the rotating rod extending out of the U-shaped housing is detachably connected with a handle body, and a flat groove is formed on the outer edge of the end of the rotating rod away from the handle body.

[0008] A driven rod is rotatably mounted in the U-shaped supporting plate, and the end of the driven rod away from the handle body rotatably extends out of the U-shaped mounting frame and is symmetrically detachably fixed with side plates, the inner end of the end of the symmetrically arranged side plates away from the driven rod is rotatably mounted with a shaft rod, a connecting plate is arranged on the outer edge between the side plates, an elliptical groove is formed in the inner end of the connecting plate, the shaft rod is slidably arranged in the elliptical groove, the top end of the connecting plate is welded and fixed in the flat groove, and a spring is sleeved on the outer edge of the connecting plate.

[0009] The spring is designed, when the handle body is deflected by being actuated, the rotating rod is rotated, the connecting plate is deflected and a pushing force is applied to the shaft rod, the shaft rod is slidably arranged in the elliptical groove, the shaft rod is deflected in the elliptical groove during deflection of the connecting plate, the side plates are deflected by the pushing force of the connecting plate, the driven rod is deflected by the side plates, the disconnecting and closing adjustment is realized, the spring is compressed and deformed during adjustment, the spring is reset only when the disconnecting and closing adjustment is completed, the self-locking resistance is formed by the elastic force of the spring during deformation after the disconnecting and closing adjustment is completed, the handle body is prevented from being actuated by external force, and the stability of the disconnecting and closing state of the vacuum circuit breaker is improved.

[0010] Preferably, an L-shaped limiting plate and a U-shaped positioning plate are detachably mounted on the inner wall of the side of the U-shaped housing facing the handle body, a horizontal rod is slidably inserted and connected in the inner part of the L-shaped limiting plate, and the end of the horizontal rod extends out of the inner part of the U-shaped positioning plate.

[0011] Preferably, a horizontal limiting groove is formed in the inner part of the U-shaped positioning plate, a positioning block is formed on the outer edge of the horizontal rod, and the positioning block is slidably inserted and connected in the horizontal limiting groove.

[0012] Preferably, a pushing block is formed on the outer edge of the part of the driven rod in the inner part of the U-shaped mounting frame, a force bearing convex rod is formed on the outer edge of the horizontal rod, and the pushing block is in contact with and pushes the force bearing convex rod.

[0013] Preferably, one end of the driven rod extending out of the U-shaped mounting frame is configured to form a square block two, the inside of the side plate is configured to form a square groove one detachably sleeving outside the square block two, one end of the rotating rod extending out of the U-shaped shell is configured to form a square block one, and the inside of the handle body is configured to form a square groove two matching the square block one.

[0014] Preferably, the outer edge surface of the cross rod is configured to form a dial plate at equal intervals for manually controlling the opening and closing action of the opening and closing switch assembly, the upper end surface of the insulating substrate is detachably provided with a vacuum arc-extinguishing bag corresponding to the position of the opening and closing switch assembly, and one side of the U-shaped shell is detachably provided with an opening and closing indication plate.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a spring is designed, when the handle body is dialled and is deflected, it will drive the rotating rod to rotate, thereby making the connecting plate deflection and the push of shaft rod is added, because the shaft rod is arranged in the oval groove and slides, therefore in the process that the connecting plate deflection, the shaft rod slides in the oval groove, and the deflection of side plate is driven under the action of the push of connecting plate, the deflection of driven rod is driven through the side plate, thereby realizing the opening and closing adjustment, in the process of adjusting, the spring will be compressed and deformed, until the opening and closing adjustment is completed, and the deformation resets, therefore after the opening and closing adjustment is completed, the self -locking resistance is formed under the action of the elastic force of the deformation process of the spring, thereby avoiding the misoperation of handle body under the influence of external force factor, and the stability of the opening and closing state limitation of vacuum circuit breaker is limited, the problem that the traditional opening handle does not have the function of self -locking in the operation process, and the handle is misoperated under the influence of external force, such as vibration, impact, and the like, and the stability of the opening and closing state limitation of vacuum circuit breaker is limited is solved. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model;

[0018] Figure 2 It is the structural schematic diagram of the utility model Figure 1 in the U-shaped shell removal state;

[0019] Figure 3 It is the bottom view of the utility model Figure 2 ;

[0020] Figure 4 It is the structural schematic diagram of the opening handle assembly of the utility model;

[0021] Figure 5 It is the back structural schematic diagram of the utility model Figure 4 ;

[0022] Figure 6The structure schematic diagram of the handle assembly under the disconnecting state of the utility model is shown in the figure.

[0023] Figure 7 The structure schematic diagram of the back of the utility model is shown in the figure. Figure 6

[0024] Figure 8 The structure schematic diagram of the connecting plate and the shaft rod under the cooperation state of the utility model is shown in the figure.

[0025] Mark explanation in the figure:

[0026] 1, base; 2, frame-shaped connecting piece; 3, insulating substrate; 4, U-shaped shell; 5, opening and closing indication plate; 6, vacuum arc-extinguishing bag; 7, opening and closing switch assembly; 8, opening and closing indication assembly; 9, handle assembly; 901, U-shaped mounting bracket; 902, L-shaped limiting plate; 903, U-shaped supporting plate; 904, U-shaped positioning plate; 905, transverse limiting groove; 906, horizontal rod; 907, push plate; 908, positioning block; 909, force bearing convex rod; 910, handle body; 911, rotating rod; 912, square block one; 913, planar groove; 914, driven rod; 915, push block; 916, square block two; 917, side plate; 918, shaft rod; 919, connecting plate; 920, spring; 921, oval groove. Specific implementation

[0027] As Figures 1-8 ​The utility model relates to a stable opening and closing handle mechanism of a disconnecting handle, comprising symmetrically arranged bases 1, the detachable connection of U-shaped casing 4 and frame connecting piece 2 is arranged between the base 1, the detachable installation of insulating substrate 3 is arranged at the top of the inner wall of U-shaped casing 4, the detachable installation of opening and closing switch assembly 7 is arranged at the bottom of insulating substrate 3 equidistantly, and the detachable installation of opening and closing indication assembly 8 is arranged at the bottom of one side of insulating substrate 3, the detachable installation of disconnecting handle assembly 9 is arranged at the inside of one side of U-shaped casing 4, disconnecting handle assembly 9 comprises the detachable connection of U-shaped mounting bracket 901 at the bottom of insulating substrate 3, the detachable installation of U-shaped supporting plate 903 is arranged at the bottom of the inner wall of one side of U-shaped mounting bracket 901, and the rotatable installation of rotating rod 911 is arranged in U-shaped mounting bracket 901, and the detachable connection of handle body 910 is arranged at the end of rotating rod 911 extending out of U-shaped casing 4, the rotatable installation of plane groove 913 is arranged on the outer edge surface of the end of rotating rod 911 away from handle body 910, the rotatable installation of driven rod 914 is arranged in U-shaped supporting plate 903, the rotatable extension of side plate 917 is arranged at the end of driven rod 914 away from handle body 910, the rotatable installation of shaft 918 is arranged in the end of side plate 917 away from driven rod 914, the rotatable installation of connecting plate 919 is arranged on the outer edge surface of shaft 918 between side plate 917, the rotatable installation of oval groove 921 is arranged in one end of connecting plate 919, shaft 918 is arranged in oval groove 921, the rotatable installation of spring 920 is arranged on the outer edge surface of connecting plate 919, and the rotatable installation of spring 920 is arranged on the outer edge surface of connecting plate 919.

[0028] In the embodiment of the utility model, the detachable installation of L-shaped limiting plate 902 and U-shaped positioning plate 904 is arranged on the inner wall of one side of U-shaped casing 4, the detachable installation of horizontal rod 906 is arranged in the inside of L-shaped limiting plate 902, the rotatable extension of horizontal rod 906 is arranged from the inside of U-shaped positioning plate 904, the rotatable installation of transverse limiting slot 905 is arranged in the inside of U-shaped positioning plate 904, the rotatable installation of positioning block 908 is arranged on the outer edge surface of horizontal rod 906, and the rotatable installation of positioning block 908 is arranged in transverse limiting slot 905.

[0029] The rotatable installation of positioning block 908 and transverse limiting slot 905 realizes the positioning of horizontal rod 906 in the axial direction sliding process.

[0030] In the embodiment of the utility model, the outer edge surface of the horizontal rod 906 is structured to form a force bearing convex rod 909, the driving block 915 movably abuts and pushes the force bearing convex rod 909, the driving rod 914 exerts a pushing force on the force bearing convex rod 909 through the driving block 915 during deflection, one end of the driving rod 914 extending out of the U-shaped mounting frame 901 is structured to form a square block two 916, the inside of the side plate 917 is structured to form a square groove one detachably sleeving the outside of the square block two 916, one end of the rotating rod 911 extending out of the U-shaped shell 4 is structured to form a square block one 912, the inside of the handle body 910 is structured to form a square groove two matching the square block one 912, the outer edge surface of the horizontal rod 906 is structured to form a push plate 907 at equal intervals for manually controlling the opening and closing of the switch assembly 7, the horizontal rod 906 drives the push plate 907 to move during sliding, the opening and closing of the switch assembly 7 is controlled through the cooperation of the push plate 907 and the switch assembly 7, the vacuum arc-extinguishing bag 6 is detachably arranged on the insulating substrate 3 at a position corresponding to the switch assembly 7, and the opening and closing indicator plate 5 is detachably arranged on one side of the U-shaped shell 4.

[0031] Working principle: the embodiment provides a stable opening and closing handle mechanism, when in use, the handle body 910 is waved, the rotating rod 911 is rotated, the connecting plate 919 is deflected, and a pushing force is exerted on the shaft rod 918, the shaft rod 918 is slid in the oval groove 921 during deflection of the connecting plate 919, the side plate 917 is deflected under the action of the pushing force of the connecting plate 919, the driving rod 914 is deflected through the side plate 917, and the opening and closing adjustment is realized, the spring 920 is compressed and deformed during adjustment, and the spring 920 is reset only when the opening and closing adjustment is completed, so that the self-locking resistance is formed under the action of the elastic force of the spring 920 during deformation after the opening and closing adjustment is completed, the handle body 910 is prevented from being misoperated under the influence of external factors, the driving rod 914 exerts a pushing force on the force bearing convex rod 909 through the driving block 915 during deflection, the horizontal rod 906 is pushed to slide along the axis direction, and positioning is realized through the sliding plug-in cooperation of the positioning block 908 and the transverse limiting groove 905, the horizontal rod 906 drives the push plate 907 to move during sliding, and the opening and closing of the switch assembly 7 is controlled through the cooperation of the push plate 907 and the switch assembly 7.

[0032] The embodiment of the utility model discloses a preferable embodiment, but is not limited to this, and the ordinary skill in the art, the spirit of the utility model can be easily understood according to the above-mentioned embodiment, and different inferences and changes are made, but as long as not departing from the spirit of the utility model, it is within the protection scope of the utility model.

Claims

1. A stable split handle mechanism for opening and closing, characterized in that, The base (1) is symmetrically arranged; The U-shaped shell (4) is detachably connected between the bases (1), an inner wall top of the U-shaped shell (4) is detachably installed with an insulating base plate (3), a bottom of the insulating base plate (3) is detachably installed with a break-make switch assembly (7) at equal intervals, and a bottom side of the insulating base plate (3) is fixedly provided with a break-make indication assembly (8), and a side inner portion of the U-shaped shell (4) is movably installed with a break handle assembly (9). The break handle assembly (9) comprises a U-shaped mounting bracket (901) detachably connected to the bottom of the insulating base plate (3), a U-shaped supporting plate (903) is detachably installed on one side of the inner wall of the U-shaped mounting bracket (901), and a rotating rod (911) extending out of the U-shaped shell (4) is rotatably installed in the U-shaped mounting bracket (901), one end of the rotating rod (911) extending out of the U-shaped shell (4) is detachably connected with a handle body (910), and a planar groove (913) is formed on the outer edge surface of one end of the rotating rod (911) away from the handle body (910). The U-shaped supporting plate (903) is rotatably installed with a driven rod (914), one end of the driven rod (914) away from the handle body (910) rotatably penetrates out of the U-shaped mounting bracket (901) and is symmetrically detachably fixed with a side plate (917), the side plates (917) symmetrically arranged are rotatably installed with a shaft rod (918) in the inner portion of one end away from the driven rod (914), a connecting plate (919) is arranged on the outer edge surface of the shaft rod (918) between the side plates (917), an elliptical groove (921) is formed in the inner portion of one end of the connecting plate (919), the shaft rod (918) is slidably arranged in the elliptical groove (921), the top end of the connecting plate (919) is welded and fixed in the planar groove (913), and a spring (920) is sleeved on the outer edge surface of the connecting plate (919), and the two ends of the spring (920) are respectively abutted on the outer edge surfaces of the planar groove (913) and the shaft rod (918).

2. A stable opening and closing handle mechanism according to claim 1, characterized in that An L-shaped limiting plate (902) and a U-shaped positioning plate (904) are detachably installed on the inner wall of one side of the U-shaped shell (4) facing the handle body (910), a horizontal rod (906) is slidably inserted and connected in the inner portion of the L-shaped limiting plate (902), and one end of the horizontal rod (906) penetrates out of the inner portion of the U-shaped positioning plate (904).

3. A stable opening and closing handle mechanism according to claim 2, characterized in that A transverse limiting groove (905) is formed in the inner portion of the U-shaped positioning plate (904), a positioning block (908) is formed on the outer edge surface of the horizontal rod (906), and the positioning block (908) is slidably inserted and connected in the transverse limiting groove (905).

4. A stable opening and closing handle mechanism according to claim 3, characterized in that A pushing block (915) is formed on the outer edge surface of the driven rod (914) in the inner portion of the U-shaped mounting bracket (901), a force bearing convex rod (909) is formed on the outer edge surface of the horizontal rod (906), and the pushing block (915) movably abuts and pushes the force bearing convex rod (909).

5. The stable opening and closing handle mechanism according to claim 1, wherein The end of the driving rod (914) extending out of the U-shaped mounting frame (901) is configured to form a square block two (916), the inside of the side plate (917) is configured to form a square groove one which can be detachably sleeved outside the square block two (916), the end of the rotating rod (911) extending out of the U-shaped shell (4) is configured to form a square block one (912), and the inside of the handle body (910) is configured to form a square groove two which is adapted to plug the square block one (912).

6. A stable opening and closing handle mechanism according to claim 3, characterized in that The outer edge surface of the cross rod (906) is configured to form the dial plate (907) at equal intervals for manually controlling the opening and closing action of the opening and closing switch assembly (7), the upper end surface of the insulating base plate (3) is detachably provided with the vacuum arc-extinguishing bag (6) at equal intervals corresponding to the position of the opening and closing switch assembly (7), and one side of the U-shaped shell (4) is detachably provided with the opening and closing indication plate (5).

Images