CN211034158U

CN211034158U - Bidirectional pull-cord switch

Info

Publication number: CN211034158U
Application number: CN201921681595.6U
Authority: CN
Inventors: 钱鸣忠
Original assignee: Wuxi Xinshun Machinery Manufacturing Co ltd
Current assignee: Wuxi Xinshun Machinery Manufacturing Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-07-17
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a two-way stay cord switch, concretely relates to two-way stay cord switch technical field, comprising a mounting plate, mounting plate's top surface fixed mounting has the fixed bolster, the top fixed mounting of fixed bolster has the device shell, connecting thread has been seted up to the outside of device shell, the left and right sides of device shell is installed respectively and is led to the subassembly and lead to the subassembly on the right side, the inside center department fixed mounting of device shell has switching brake switch. The utility model discloses a set up the fixed subassembly of locking, in the device course of operation, pass fixed frame shell through manual one side of passing thin wire rope's one end through eccentric extrusion wheel, pass fixed frame shell again and stretch out the fag end from eccentric extrusion wheel's opposite side, deflect eccentric extrusion wheel through the manual work at last and fix the thin wire rope extrusion of encircleing inside the fixed subassembly of locking for thin wire rope is in braking process, and the tension is big more, lets its extrusion force that drives eccentric extrusion wheel strengthen.

Description

Bidirectional pull-cord switch

Technical Field

The utility model relates to a two-way stay cord switch technical field, more specifically say, the utility model relates to a two-way stay cord switch.

Background

The pull-cord switch is commonly called as an emergency stop switch, and when the emergency stop switch is acted on a belt type conveying field and needs to stop, the emergency stop switch stops the conveyor through the action of the switch. The pull rope switches are arranged on the machine frames on the two sides of the belt conveyor, and the switches are connected by steel wire ropes along the two sides of the belt conveyor. When the conveyer belt equipment has an emergency accident, the steel wire rope is pulled at any position along the line on site, the steel wire rope pulls the rocker arm to rotate, the transmission shaft drives the torsion spring to enable the precision cam to displace, the microswitch is driven to cut off the control circuit, and the conveyer stops running.

However, when the pull switch is actually used, some defects still exist, for example, the pull switch is connected with a brake through a long-distance stretched and laid thin steel wire rope in the working process, when an emergency occurs, the thin steel wire rope is manually pulled to drive the brake to perform braking operation, but the thin steel wire rope of the existing pull switch is connected in a welding or winding manner, the problem of corrosion and falling easily occurs in the long-time use process, the potential safety hazard of the device is increased, the reset assembly of the pull switch at the current stage is independent operation, manual operation is needed, the time consumption of the reset operation of the device is increased, and the working efficiency of the device is reduced.

Therefore, it is desirable to provide a bidirectional pull switch with high efficiency, stable connection and high safety.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a two-way stay cord switch, through setting up the fixed subassembly of locking, in the device course of operation, pass fixed frame shell through manual one side of eccentric extrusion wheel to thin wire rope's one end, it stretches out the fag end to pass fixed frame shell from the opposite side of eccentric extrusion wheel again, it fixes inside the fixed subassembly of locking to deflect the extrusion wheel through the manual work at last thin wire rope extrusion of encircleing, make thin wire rope at the braking in-process, it is big more to draw the power, let its extrusion force that drives eccentric extrusion wheel strengthen, thin wire rope's fixed effect has been increased, in order to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a bidirectional pull-cord switch comprises an installation bottom plate, wherein a fixed support is fixedly installed on the top surface of the installation bottom plate, a device shell is fixedly installed at the top end of the fixed support, connecting threads are arranged on the outer portion of the device shell, a left-pass component and a right-pass component are respectively installed on the left side and the right side of the device shell, a switching brake switch is fixedly installed at the center of the inner portion of the device shell, a square rotating shaft is fixedly installed on the top surface of the switching brake switch, a rotating shifting sheet is fixedly installed on the outer portion of the square rotating shaft through a fixing bolt cap, connecting bolts are fixedly installed at the two ends of the rotating shifting sheet, a rotating crankshaft is movably sleeved on the outer portion of each connecting bolt, a movable shaft is fixedly installed at the end portion of each rotating crankshaft, a locking fixed component is movably installed at the end portion of each movable shaft, the other end of the reset component is fixedly connected inside the device shell.

In a preferred embodiment, the surface of the mounting base plate is provided with a plurality of mounting slots, the opening directions of the mounting slots are divided into a transverse direction and a longitudinal direction, and the mounting slots are provided with adaptive threaded connecting bolts.

In a preferred embodiment, the device housing is detachably provided with a device top cover through the connecting thread, and the top surface of the device top cover is fixedly provided with a peep hole.

In a preferred embodiment, the left through component and the right through component are the same structural member, and the left through component and the right through component are fixedly installed on the upper left side wall and the lower right side wall of the device shell respectively through the side wall of the device shell.

In a preferred embodiment, the left through component and the right through component are both movably provided with a limiting sliding sheave, the inner sheave groove of the limiting sliding sheave is connected with a thin steel wire rope through friction, and the thin steel wire rope penetrates through the inner parts of the left through component and the right through component to be fixedly connected with the locking and fixing component.

In a preferred embodiment, the locking fixing assembly includes a fixed frame shell, a fixed shaft is fixedly mounted inside the fixed frame shell, an eccentric extrusion wheel is movably mounted outside the fixed shaft, and the limiting sliding sheave is fixedly mounted inside the fixed frame shell through the eccentric extrusion wheel.

In a preferred embodiment, the number of the reset assemblies is two, the two reset assemblies are respectively and fixedly installed at the left end and the right end of the rotating shifting piece, one end of each reset assembly is fixedly connected inside a corresponding hanging hole formed in the side edge of the rotating shifting piece, and the other end of each reset assembly is fixedly connected inside the device shell.

In a preferred embodiment, the return assembly comprises a return spring, one end of the return spring is fixedly connected with a fixing block, and the fixing block is fixedly connected inside the device shell.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a set up the fixed subassembly of locking, in the device course of operation, pass fixed frame shell through one side of eccentric extrusion wheel to thin wire rope's one end through manual, it stretches out the fag end from the opposite side of eccentric extrusion wheel to pass fixed frame shell again, it fixes inside the fixed subassembly of locking to deflect eccentric extrusion wheel through the manual work at last thin wire rope extrusion of encircleing, make thin wire rope in braking process, it is big more to draw the power, let its extrusion force that drives eccentric extrusion wheel strengthen, thin wire rope's fixed effect has been increased, it leads to thin wire rope to drop to have solved the too big pulling force, can't carry out emergency braking, cause accident's problem, the connection stability of device and the safety in utilization of device have been improved.

2. The utility model discloses a set up reset spring, in device emergency braking in-process, drive through the thin wire rope of pulling and rotate the plectrum and deflect for the device gets into brake state, thereby pulling reset spring is in tensile state, after emergency treatment finishes, and the automatic pulling of pulling force that produces that resets through the elastic deformation of reset spring self rotates the plectrum and resets, need not artifical manual operation that resets, has improved the simple operation nature of device, has increased the practicality of device.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the top cover structure of the device of the present invention.

Fig. 3 is a schematic structural view of the limiting sliding sheave of the present invention.

Fig. 4 is a schematic structural view of the locking and fixing assembly of the present invention.

Fig. 5 is a schematic structural view of the reset assembly of the present invention.

The reference signs are: 1. mounting a bottom plate; 2. fixing a bracket; 3. a device housing; 4. connecting threads; 5. a left-pass component; 6. a right through component; 7. a transfer brake switch; 8. a square rotating shaft; 9. fixing a bolt cap; 10. rotating the shifting sheet; 11. a connecting bolt; 12. rotating the crankshaft; 13. a movable shaft; 14. locking the fixing component; 15. a reset assembly; 16. a device top cover; 17. a peep window; 18. a limiting sliding grooved wheel; 19. a thin wire rope; 141. fixing the frame shell; 142. a fixed shaft; 143. an eccentric extrusion wheel; 151. a return spring; 152. and (5) fixing blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The two-way pull-cord switch shown in the attached drawings 1-5 comprises an installation bottom plate 1, wherein a fixed support 2 is fixedly installed on the top surface of the installation bottom plate 1, a device shell 3 is fixedly installed at the top end of the fixed support 2, connecting threads 4 are formed on the outer portion of the device shell 3, a left-through component 5 and a right-through component 6 are respectively installed on the left side and the right side of the device shell 3, a switching brake switch 7 is fixedly installed at the center of the inner portion of the device shell 3, a square rotating shaft 8 is fixedly installed on the top surface of the switching brake switch 7, a rotating shifting piece 10 is fixedly installed on the outer portion of the square rotating shaft 8 through a fixed bolt cap 9, connecting bolts 11 are fixedly installed at two ends of the rotating shifting piece 10, a rotating crankshaft 12 is movably sleeved on the outer portion of the connecting bolts 11, and a movable shaft 13 is, the end part of the movable shaft 13 is movably provided with a locking fixing component 14, the outer edge of the rotating shifting piece 10 is fixedly provided with a reset component 15, and the other end of the reset component 15 is fixedly connected inside the device shell 3.

Referring specifically to the attached drawing 2 of the specification, the device housing 3 is detachably mounted with a device top cover 16 through the connecting thread 4, and a peep window 17 is fixedly mounted on the top surface of the device top cover 16.

The implementation mode is specifically as follows: through setting up the device top cap 16 with device shell 3 looks adaptation for the dust of external environment can't get into the inside internal circuit component that corrodes of subassembly, has increased the life of device, and through setting up peep hole 17, the inside situation of convenient to overhaul personnel observation device has increased the practicality of device.

Referring to fig. 3 in the specification, the left through component 5 and the right through component 6 are the same structural members, and the left through component 5 and the right through component 6 are respectively fixedly installed on the upper left side wall and the lower right side wall of the device housing 3 through the side wall of the device housing 3.

The inner parts of the left through component 5 and the right through component 6 are both movably provided with limiting sliding grooved wheels 18, the inner grooved wheels of the limiting sliding grooved wheels 18 are connected with thin steel wire ropes 19 through friction, and the thin steel wire ropes 19 penetrate through the inner parts of the left through component 5 and the right through component 6 and are fixedly connected with the locking fixing component 14.

The implementation mode is specifically as follows: through set up spacing slip sheave 18 in the inside of leading to subassembly 5 on a left side and subassembly 6 on a right side for thin wire rope 19 and the outer wall of leading to subassembly 5 on a left side and subassembly 6 on a right side pull open the distance, utilize the sliding friction of spacing slip sheave 18 to replace hard friction simultaneously, reduced frictional force, the pulling braking operation of thin wire rope 19 of being convenient for, increased the security performance of device, reduced the wearing and tearing of thin wire rope 19 and the junction of leading to subassembly 5 on a left side and subassembly 6 on a right side simultaneously, improved the life of device.

Specifically referring to fig. 4 of the specification, the locking fixing assembly 14 includes a fixing frame shell 141, a fixing shaft 142 is fixedly installed inside the fixing frame shell 141, an eccentric pressing wheel 143 is movably installed outside the fixing shaft 142, and the limiting sliding sheave 18 is fixedly installed inside the fixing frame shell 141 through the eccentric pressing wheel 143.

The implementation mode is specifically as follows: in the working process of the device, one end of the thin steel wire rope 19 passes through the fixed frame shell 141 through one side of the eccentric extrusion wheel 143 by hand, then passes through the fixed frame shell 141 and extends out of the rope head from the other side of the eccentric extrusion wheel 143, and finally the surrounding thin steel wire rope 19 is extruded and fixed inside the locking and fixing component 14 by manually deflecting the eccentric extrusion wheel 143, so that the larger the tension force is, the larger the extrusion force for driving the eccentric extrusion wheel 143 is, the fixing effect of the thin steel wire rope 19 is increased, the problem that the thin steel wire rope 19 falls off due to overlarge tension force, emergency braking cannot be performed and accidents are caused is solved, and the connection stability of the device and the use safety of the device are improved.

Specifically referring to fig. 5 of the specification, the number of the reset assemblies 15 is two, and the two reset assemblies are respectively and fixedly installed at the left end and the right end of the rotary plectrum 10, one end of each reset assembly 15 is fixedly connected inside a corresponding hanging hole formed in the side edge of the rotary plectrum 10, and the other end of each reset assembly 15 is fixedly connected inside the device shell 3.

The reset assembly 15 comprises a reset spring 151, one end of the reset spring 151 is fixedly connected with a fixing block 152, and the fixing block 152 is fixedly connected inside the device shell 3.

The implementation mode is specifically as follows: in the device emergency braking process, drive through the thin wire rope 19 of pulling and rotate plectrum 10 and deflect for the device gets into brake state, thereby pulling reset spring 151 is in tensile state, after emergency treatment finishes, resets the automatic pulling of pulling force that produces through the elastic deformation of reset spring 151 self and rotates plectrum 10 and reset, need not artifical manual operation that resets, has improved the simple operation nature of device, has increased the practicality of device.

The utility model discloses the theory of operation: firstly, all the components are installed and the normal operation of the device is kept, then the device is accessed into the equipment through the installation slot hole of the installation bottom plate 1, then one end of the thin steel wire rope 19 is manually penetrated through the fixed frame shell 141 through one side of the eccentric extrusion wheel 143, then the rope head is extended out from the other side of the eccentric extrusion wheel 143 through the fixed frame shell 141, finally the surrounded thin steel wire rope 19 is extruded and fixed in the locking and fixing component 14 through manually deflecting the eccentric extrusion wheel 143, then, when an emergency occurs, the rotating shifting piece 10 is driven to deflect by manually pulling the thin steel wire rope 19, the device is enabled to enter a braking state, then, the larger the tension force of the thin steel wire rope 19 in the braking process is, the larger the extrusion force of the thin steel wire rope 19 driving the eccentric extrusion wheel 143 is, the fixing effect of the thin steel wire rope 19 is increased, and finally, the rotating shifting piece 10 is automatically pulled to reset through the pulling force generated by the elastic deformation reset of the reset spring 151 after the braking is finished.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a two-way stay cord switch, includes mounting plate (1), the top surface fixed mounting of mounting plate (1) has fixed bolster (2), the top fixed mounting of fixed bolster (2) has device shell (3), its characterized in that: connecting threads (4) are arranged outside the device shell (3), a left-side through component (5) and a right-side through component (6) are respectively installed on the left side and the right side of the device shell (3), a transfer brake switch (7) is fixedly installed at the center inside the device shell (3), a square rotating shaft (8) is fixedly installed on the top surface of the transfer brake switch (7), a rotating shifting piece (10) is fixedly installed outside the square rotating shaft (8) through a fixing bolt cap (9), connecting bolts (11) are fixedly installed at the two ends of the rotating shifting piece (10), a rotating crankshaft (12) is sleeved on the connecting bolts (11) in an external movable mode, a movable shaft (13) is fixedly installed at the end of the rotating crankshaft (12), a locking fixing component (14) is movably installed at the end of the movable shaft (13), a reset component (15) is fixedly installed at the outer edge of the rotating shifting piece (10), the other end of the reset component (15) is fixedly connected inside the device shell (3).

2. The bi-directional pull-cord switch of claim 1, wherein: the surface of the mounting bottom plate (1) is provided with a plurality of mounting slotted holes, the opening directions of the mounting slotted holes are divided into a transverse direction and a longitudinal direction, and the mounting slotted holes are provided with matched threaded connection bolts.

3. The bi-directional pull-cord switch of claim 1, wherein: the device shell (3) is detachably provided with a device top cover (16) through the connecting thread (4), and the top surface of the device top cover (16) is fixedly provided with a peeping window (17).

4. The bi-directional pull-cord switch of claim 1, wherein: the left side leads to subassembly (5) and right side and leads to subassembly (6) and be the same structural component, the left side leads to subassembly (5) and right side and leads to subassembly (6) and run through respectively the lateral wall fixed mounting of device shell (3) is on the upper side of the left side wall of device shell (3) and right side wall is on the lower side.

5. The bi-directional pull-cord switch of claim 4, wherein: the inner parts of the left through component (5) and the right through component (6) are respectively and movably provided with a limiting sliding grooved wheel (18), the inner grooved wheel of the limiting sliding grooved wheel (18) is connected with a thin steel wire rope (19) through friction, and the thin steel wire rope (19) penetrates through the inner parts of the left through component (5) and the right through component (6) and is fixedly connected with the locking fixing component (14).

6. The bi-directional pull-cord switch of claim 5, wherein: the locking fixing assembly (14) comprises a fixing frame shell (141), a fixing shaft (142) is fixedly mounted inside the fixing frame shell (141), an eccentric extrusion wheel (143) is movably mounted outside the fixing shaft (142), and the limiting sliding grooved wheel (18) is fixedly mounted inside the fixing frame shell (141) through the eccentric extrusion wheel (143).

7. The bi-directional pull-cord switch of claim 1, wherein: the number of the reset assemblies (15) is two, the reset assemblies are respectively and fixedly installed at the left end and the right end of the rotating shifting piece (10), one end of each reset assembly (15) is fixedly connected to the inside of a hanging hole which is formed in the side edge of the rotating shifting piece (10) and matched with the side edge of the rotating shifting piece, and the other end of each reset assembly is fixedly connected to the inside of the device shell (3).

8. The bi-directional pull-cord switch of claim 7, wherein: the reset assembly (15) comprises a reset spring (151), one end of the reset spring (151) is fixedly connected with a fixed block (152), and the fixed block (152) is fixedly connected inside the device shell (3).