An anti-drop assembled push button switch

Abstract

The invention provides an anti-drop assembled push button switch, which relates to the technical field of push button switches and comprises a switch side cover, wherein a threaded body is arranged on the circumferential surface of the switch side cover, a side end cover is fixedly installed on the circumferential surface of the threaded body, a certain gap is left between the threaded body and the side end cover, a first storage groove is opened on the circumferential surface of the threaded body, a fastening structure is arranged inside the first storage groove, the fastening structure comprises a one-way bearing, an inner ring of the one-way bearing is fixedly installed with an inner wall of the first storage groove, an outer ring of the one-way bearing is fixedly installed with an annular member, the diameter of the annular member is smaller than the major diameter of the threaded body, and the diameter of the side end cover is larger than the major diameter of the threaded body, by arranging the one-way bearing and utilizing the characteristics of the one-way bearing itself, the one-way bearing can ensure the fastening relationship between the bayonet pin and the nut, thereby enabling the bayonet pin to always maintain the current angle to clamp the nut on the threaded body, thereby greatly ensuring the fastening strength of the connection between the bayonet pin and the nut, and improving reliability.

Description

Technical Field

[0001] The invention belongs to the technical field of button switches, and more specifically, particularly relates to an anti-drop assembled button switch. Background Art

[0002] An assembled push button switch is a push button switch composed of multiple parts in a specific way. It is widely used in electrical control systems of various industrial equipment, such as machine tools, cranes, conveyor belts, etc., to realize the start, stop, forward and reverse control functions of the equipment. The assembled push button switch is composed of multiple parts such as side end covers, return springs, static contacts, moving contacts, and shells. These parts are independent of each other during manufacturing, which is convenient for separate production and processing. At the same time, the various parts of the assembled push button switch are designed with specific connection structures or interfaces, so that they can be assembled in a certain order and method to form a complete push button switch.

[0003] When the existing assembled push button switch is in use, it is usually connected to the machine by a side end cover and a nut. However, since the application scenarios of some assembled push button switches are subject to strong vibration, the nut will loosen to a certain extent on the thread due to vibration, which can easily cause the assembled push button switch to fall off, affecting its use. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an anti-drop assembled push button switch to solve the above problems.

[0005] An anti-drop assembled push button switch, comprising a switch side cover, a threaded body is provided on the circumferential surface of the switch side cover, a side end cover is fixedly mounted on the circumferential surface of the threaded body, a certain gap is left between the threaded body and the side end cover, and a first storage groove is provided on the circumferential surface of the threaded body;

[0006] A fastening structure is provided inside the first storage slot;

[0007] The fastening structure includes a one-way bearing, an inner ring of the one-way bearing is fixedly installed on the inner wall of the first storage groove, an outer ring of the one-way bearing is fixedly installed with an annular member, the diameter of the annular member is smaller than the major diameter of the threaded body, the diameter of the side end cover is larger than the major diameter of the threaded body, a plurality of second storage grooves are opened inside the annular member, each of the second storage grooves is symmetrically opened on the side wall thereof, a damping bearing is arranged inside each of the circular grooves, the first storage groove is opened on the side of the circumferential surface of the threaded body away from the side end cover, and the threaded body is located between the side end cover and the first storage groove.

[0008] Preferably, the outer ring of each damping bearing is fixedly mounted on the inner wall of the circular groove, a rotating rod is fixedly mounted between the inner rings of each damping bearing, a square plate is provided on the circumferential surface of each rotating rod, and a through groove is penetrated through the inside of each square plate.

[0009] Preferably, each of the rotating rods is fixedly mounted on the square plate via a through groove, a first slot is penetrated through the interior of each of the square plates, a nut is threadedly mounted on the circumferential surface of the threaded body, and the major diameter of the internal thread of the nut is larger than the diameter of the ring member.

[0010] Preferably, each of the nut is provided with a plurality of second slots extending therethrough, each of the second slots is parallel to the first slot, a pin is provided between each of the second slots and the first slot, and a plurality of annular grooves are provided on the circumferential surface of each of the pins.

[0011] Preferably, a plastic U-shaped card is provided between each of the annular grooves on the bayonet, a connecting contact assembly is provided on the side wall of the switch side cover, a passive tightening thread is provided inside the switch side cover, an active tightening thread is provided inside the connecting contact assembly, and the active tightening thread is threadably installed with the passive tightening thread.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the present invention, by providing a one-way bearing and utilizing the characteristics of the one-way bearing itself, the one-way bearing can ensure the fastening relationship between the bayonet pin and the nut, thereby enabling the bayonet pin to always maintain the current angle to clamp the nut on the threaded body, thereby greatly ensuring the fastening strength of the connection between the bayonet pin and the nut and improving reliability;

[0014] In the present invention, a ring member is provided, and a damping bearing is used on the ring member to connect the rotating rod and the square plate, so that when the staff inserts the bayonet pin between the square plate and the nut, the damping force of the damping bearing can be used to keep the square plate in a vertical position, thereby facilitating the bayonet pin and improving the convenience of installation.

[0015] In the present invention, an annular member is arranged outside the one-way bearing, and a first clamping groove of a square plate for clamping with a second clamping groove on a nut is arranged on the annular member, so that a worker can clamp a clamping pin into the first clamping groove and the second clamping groove, thereby avoiding the problem of loosening of the nut and the switch side cover on the switch side cover and causing unstable installation when the installation environment of the push button switch vibrates, thereby improving reliability;

[0016] In the present invention, an annular groove is provided on the bayonet pin, and a plastic U-shaped card is provided on any annular groove provided between each group of bayonet pins, so that the connection between the bayonet pins can be stabilized, thereby indirectly improving the locking strength of the bayonet pin on the nut and improving the reliability. At the same time, since both the plastic U-shaped card and the bayonet pin can be assembled externally, the flexibility during installation is further improved.

[0017] In the present invention, by providing a passive tightening thread inside the switch side cover and an active tightening thread inside the connecting contact assembly, workers can assemble and install the push button switch when using it, greatly improving the convenience of using the push button switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional connection explosion structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the active tightening thread of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the passive tightening thread of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the switch side cover of the present invention;

[0023] Figure 6 It is a schematic diagram of the explosion structure of the switch side cover connection of the present invention;

[0024] Figure 7 It is a schematic diagram of the nut connection explosion structure of the present invention;

[0025] Figure 8 It is a schematic diagram of the one-way bearing connection explosion structure of the present invention;

[0026] Fig. 9 The present invention Figure 8 A magnified view of the structure in Figure 2.

[0027] In the figure, the correspondence between the component names and the figure numbers is: 11, switch side cover; 12, threaded body; 13, side end cover; 14, first storage groove; 15, one-way bearing; 16, ring member; 17, second storage groove; 18, circular groove; 19, damping bearing; 21, rotating rod; 22, square plate; 23, through groove; 24, first clamping groove; 25, nut; 26, second clamping groove; 27, bayonet pin; 28, annular groove; 29, plastic U-shaped card; 31, connecting contact assembly; 32, passive tightening thread; 33, active tightening thread. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] See also Figure 1 - Fig. 9 The present invention provides an anti-drop assembled push button switch, comprising a switch side cover 11, a threaded body 12 is provided on the circumferential surface of the switch side cover 11, a side end cover 13 is fixedly installed on the circumferential surface of the threaded body 12, a certain gap is left between the threaded body 12 and the side end cover 13, and a first storage groove 14 is provided on the circumferential surface of the threaded body 12;

[0030] A fastening structure is provided inside the first storage slot 14;

[0031] The fastening structure includes a one-way bearing 15, the inner ring of the one-way bearing 15 is fixedly installed with the inner wall of the first placement groove 14, the outer ring of the one-way bearing 15 is fixedly installed with a ring member 16, the diameter of the ring member 16 is smaller than the major diameter of the threaded body 12, the diameter of the side end cover 13 is larger than the major diameter of the threaded body 12, and a plurality of second placement grooves 17 are opened inside the ring member 16, and each second placement groove 17 is symmetrically opened on the side wall thereof. A damping bearing 19 is arranged inside each circular groove 18, and the first placement groove 14 is opened on the circumferential surface of the threaded body 12. On the side away from the side end cover 13, the threaded body 12 is located between the side end cover 13 and the first storage groove 14. Since the fastening of the nut 25 and the threaded body 12 requires the nut 25 to rotate on the threaded body 12, by providing a one-way bearing 15 and utilizing the characteristics of the one-way bearing 15 itself, the one-way bearing 15 can ensure the fastening relationship between the bayonet pin 27 and the nut 25, so that the bayonet pin 27 always maintains the current angle to clamp the nut 25 on the threaded body 12, thereby greatly ensuring the fastening strength of the connection between the bayonet pin 27 and the nut 25 and improving reliability.

[0032] The outer ring of each damping bearing 19 is fixedly installed with the inner wall of the circular groove 18, and a rotating rod 21 is fixedly installed between the inner rings of each damping bearing 19. A square plate 22 is provided on the circumferential surface of each rotating rod 21, and a through groove 23 is penetrated inside each square plate 22. Each rotating rod 21 is fixedly installed with the square plate 22 through the through groove 23, and a first clamping groove 24 is penetrated inside each square plate 22. By providing an annular member 16 and connecting the rotating rod 21 and the square plate 22 through the damping bearing 19 on the annular member 16, when the staff inserts the bayonet 27 between the square plate 22 and the nut 25, the damping force of the damping bearing 19 can be used to make the square plate 22 stay in a vertical position, thereby facilitating the clamping of the bayonet 27 and improving the convenience of installation.

[0033] A nut 25 is threadedly installed on the circumferential surface of the threaded body 12, and the major diameter of the internal thread of the nut 25 (the major diameter of the thread is also called the nominal diameter) is larger than the diameter of the ring 16. A plurality of second slots 26 are penetrated inside each nut 25, and each second slot 26 is parallel to the first slot 24. A bayonet 27 is clamped between each second slot 26 and the first slot 24. By arranging the ring 16 outside the one-way bearing 15 and arranging the first slot 24 of the square plate 22 on the ring 16 for clamping with the second slot 26 on the nut 25, the staff can clamp the bayonet 27 into the first slot 24 and the second slot 26, thereby avoiding the problem of unstable installation caused by loosening of the nut 25 and the switch side cover 11 when the installation environment of the push button switch vibrates, thereby improving reliability.

[0034] Each of the bayonet pins 27 is provided with a plurality of annular grooves 28 on the circumferential surface, and a plastic U-shaped card 29 is provided between each of the annular grooves 28 on the bayonet pin 27. After the staff rotates the annular member 16 so that the first card groove 24 on each square plate 22 on the annular member 16 is parallel to the second card groove 26, the staff can rotate the square plate 22 so that the square plate 22 drives the rotating rod 21 to rotate, and drives the inner ring of the damping bearing 19 to rotate together, so that the square plate 22 is in a vertical state, and then the staff can insert the bayonet pin 27 into the second card groove 26 through the first card groove 24 on the square plate 22, and then the staff can repeat the above steps to rotate the remaining square plates 22 to a vertical state, and insert the bayonet pin 27 into the second card groove 26 through the first card groove 24 on the square plate 22, thereby completing the installation, and then the staff can insert the plastic U-shaped card 29 into one of the annular grooves 28 on each group of bayonet pins 27 for fastening and clamping, thereby completing the installation.

[0035] By opening an annular groove 28 on the bayonet 27 and providing a plastic U-shaped card 29 on any annular groove 28 opened between each group of bayonet pins 27, the connection between the bayonet pins 27 and the bayonet pins 27 can be stabilized, thereby indirectly improving the locking strength of the bayonet pin 27 on the nut 25 and improving reliability.

[0036] A connecting contact assembly 31 is provided on the side wall of the switch side cover 11, a passive tightening thread 32 is provided inside the switch side cover 11, and an active tightening thread 33 is provided inside the connecting contact assembly 31. The active tightening thread 33 is threadedly installed with the passive tightening thread 32. When connecting, the staff can first use the active tightening thread 33 on the connecting contact assembly 31 to rotationally connect the active tightening thread 33 with the passive tightening thread 32 inside the switch side cover 11, so that the switch side cover 11 and the connecting contact assembly 31 can be connected as a whole. Then the staff can insert the connecting contact assembly 31 into the mounting hole groove in the machine so that the side end cover 13 is close to the outer wall of the machine. Then the staff can pass the nut 25 through the connecting contact assembly 31 and perform thread transmission on the threaded body 12 of the switch side cover 11, so that the nut 25 and the side end cover 13 cooperate to clamp the switch side cover 11 on the machine as a whole.

[0037] By providing a passive tightening thread 32 inside the switch side cover 11 and an active tightening thread 33 inside the connecting contact assembly 31, workers can assemble and install the push button switch when using it, greatly improving the convenience of using the push button switch.

[0038] Working principle:

[0039] In the first step, when connecting, the staff can first use the active tightening thread 33 on the connecting contact assembly 31 to rotate and connect the active tightening thread 33 with the passive tightening thread 32 inside the switch side cover 11, so that the switch side cover 11 and the connecting contact assembly 31 can be connected as a whole. Then the staff can insert the connecting contact assembly 31 into the mounting hole groove in the machine so that the side end cover 13 is close to the outer wall of the machine. Then the staff can pass the nut 25 through the connecting contact assembly 31 and perform thread transmission on the threaded body 12 of the switch side cover 11, so that the nut 25 and the side end cover 13 cooperate to clamp the switch side cover 11 as a whole on the machine. Then the staff can rotate the ring 16 so that the ring 16 drives the square plate 22 to rotate together, thereby driving the one-way bearing 1 5 (the one-way bearing 15 is a bearing that can rotate freely in one direction and is locked in the other direction. It is mainly used to control the rotation direction of the shaft, allowing power to be transmitted in one direction and preventing power transmission in the opposite direction. The one-way bearing 15 contains many key components, mainly composed of rollers, springs and retainers. In the direction in which rotation is allowed, the rollers roll in the wedge-shaped space between the inner and outer rings of the bearing, allowing the inner and outer rings to rotate relatively freely. When the rotation direction is reversed, the rollers are wedged between the inner and outer rings under the action of the springs, thereby preventing the inner and outer rings from rotating relative to each other and achieving the locking function) the outer ring rotates until the first slots 24 on each square plate 22 on the annular member 16 are parallel to each second slot 26, and the rotation can be stopped;

[0040] In the second step, after the staff rotates the annular member 16 so that the first slots 24 on each square plate 22 on the annular member 16 are parallel to the second slots 26, the staff can rotate the square plate 22 so that the square plate 22 drives the rotating rod 21 to rotate and drives the damping bearing 19 (the damping bearing 19 is a special type of bearing. It adds damping characteristics on the basis of traditional bearings. In simple terms, it can generate a certain resistance during the operation of the bearing. This resistance can effectively reduce vibration and impact, make the movement of the rotating parts more stable, and maintain a certain angle. The damping bearing 19 usually has special damping materials inside. These damping materials can be rubber, grease or other high molecular polymers. When the bearing rotates, due to The relative movement of the inner and outer rings, the rolling of rolling bodies such as balls and rollers, and other factors will cause the damping material to deform, and the damping material will consume energy during the deformation process, thereby maintaining the current angle) and rotating the inner ring together, so that the square plate 22 is in a vertical state, and then the staff can insert the pin 27 into the second slot 26 through the first slot 24 on the square plate 22, and then the staff can repeat the above steps, rotate the remaining square plates 22 to a vertical state, and insert the pin 27 into the second slot 26 through the first slot 24 on the square plate 22 to complete the installation, and then the staff can insert the plastic U-shaped card 29 between one of the annular grooves 28 on each group of pins 27 for fastening and clamping, thereby completing the installation.

[0041] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An anti-drop assembled push button switch, comprising a switch side cover (11), a threaded body (12) being provided on the circumferential surface of the switch side cover (11), a side end cover (13) being fixedly mounted on the circumferential surface of the threaded body (12), a certain gap being left between the threaded body (12) and the side end cover (13), characterized in that: The circumferential surface of the threaded body (12) is provided with a first storage groove (14); A fastening structure is provided inside the first storage groove (14); The fastening structure comprises a one-way bearing (15), the inner ring of the one-way bearing (15) is fixedly mounted on the inner wall of the first storage groove (14), the outer ring of the one-way bearing (15) is fixedly mounted with an annular member (16), the diameter of the annular member (16) is smaller than the major diameter of the threaded body (12), the diameter of the side end cover (13) is larger than the major diameter of the threaded body (12), a plurality of second storage grooves (17) are provided inside the annular member (16), each of the second storage grooves (17) is symmetrically provided with a circular groove (18) on the side wall, and a damping bearing (19) is provided inside each of the circular grooves (18); The first storage groove (14) is formed on a side of the circumferential surface of the threaded body (12) away from the side end cover (13), and the threaded body (12) is located between the side end cover (13) and the first storage groove (14); The outer ring of each damping bearing (19) is fixedly mounted on the inner wall of the circular groove (18), and a rotating rod (21) is fixedly mounted between each inner ring of each damping bearing (19); A square plate (22) is provided on the circumferential surface of each rotating rod (21), and a through groove (23) is provided inside each square plate (22); Each of the rotating rods (21) is fixedly mounted on the square plate (22) via a through slot (23), and each of the square plates (22) is provided with a first slot (24) running through the inside thereof; A nut (25) is threadedly mounted on the circumferential surface of the threaded body (12), and the major diameter of the internal thread of the nut (25) is greater than the diameter of the annular member (16); A plurality of second slots (26) are provided inside the nut (25), and each of the second slots (26) is parallel to the first slot (24); A latch pin (27) is latched between each of the second latch slots (26) and the first latch slot (24), and a plurality of annular grooves (28) are formed on the circumferential surface of each of the latch pins (27).

2. The anti-drop assembled push button switch according to claim 1, characterized in that: A plastic U-shaped card (29) is provided between each of the annular grooves (28) on the latch pin (27), a connecting contact assembly (31) is provided on the side wall of the switch side cover (11), and a passive tightening thread (32) is provided inside the switch side cover (11).

3. The anti-drop assembled push button switch according to claim 2, characterized in that: An active tightening thread (33) is provided inside the connecting contact assembly (31), and the active tightening thread (33) is threadably mounted with the passive tightening thread (32).

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