CN215796624U

CN215796624U - Novel automatic return pull switch

Info

Publication number: CN215796624U
Application number: CN202121926456.2U
Authority: CN
Inventors: 陈冬梅
Original assignee: Shandong Iron and Steel Group Yongfeng Lingang Co Ltd
Current assignee: Shandong Iron and Steel Group Yongfeng Lingang Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-11
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a novel automatic-return pull rope switch which comprises a base, wherein a fixing hole is formed in the middle of the base, a rocker arm is rotatably connected to the lower portion of the middle of a shell, a limiting block is arranged on the right side of the rocker arm, a pull ring is rotatably connected to the upper end of the rocker arm, a pull rope is arranged on the left side of the pull ring, the front end of the pull rope bypasses the pull ring and is fixedly connected with a limiting ring, a spring is movably connected to the right side of the pull ring, and a filter press is fixedly connected to the right side of a connecting block. According to the utility model, the pull rope switch is firstly fixed on the filter press to achieve the purpose of fixed installation, the pull rope is pulled to enable the electric wire to be powered on or powered off to achieve the effect of pulling control, the rocker arm is driven to reset by the pull ring through the spring, and after the spring is additionally arranged, the pull rope switch can return in time to ensure the normal operation of equipment, the labor intensity of personnel is reduced, and the filter press is worth popularizing.

Description

Novel automatic return pull switch

Technical Field

The utility model relates to the field of pull-cord switches, in particular to a novel automatic-return pull-cord switch.

Background

The pull switch is commonly called as an emergency shutdown switch, when the emergency shutdown switch acts on a belt conveyor and needs to be shut down, the conveyor is shut down through the action of the switch, the pull switch is installed on the frames on the two sides of the belt conveyor and is connected with the switch along the two sides of the conveyor through a steel wire rope, when an emergency accident happens to conveyor belt equipment, the steel wire rope is pulled at any position along the line on the spot, the steel wire rope pulls the rocker arm to rotate, the transmission shaft drives the torsion spring to enable the precision cam to displace, and the microswitch is driven to cut off a control circuit, so that the conveyor stops running.

Chinese patent document CN203345678U discloses a two-way pull switch, including switch cover and switch seat, the cavity that switch cover and switch seat formed in be equipped with micro-gap switch, the switch seat on be equipped with the outlet, the switch seat on be equipped with the rocking arm, the rocking arm on be equipped with the jack, the jack in be equipped with and be used for the spacing stop device of rocking arm, the switch seat on be equipped with the spout with stop device looks adaptation, stop device have with the first position that switch seat surface offseted and fall into the second position in the spout. This patent can automatic switch again can manual control to provide fine spacing, prevent the potential safety hazard, nevertheless because the pressure filter stay cord switch can appear not return phenomenon for a long time, cause the board ore deposit pressure filter to unload the situation of mud untimely or maloperation easily, influence the operation of pressure filter, increase personnel intensity of labour.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a novel automatic-return pull-cord switch.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a novel self-return's stay cord switch, includes the base, the fixed orifices has been seted up at the middle part of base, the lower part fixedly connected with fixed plate of base, the inside threaded connection of fixed orifices has the bolt, the upper portion fixedly connected with casing of base, the left side of casing is provided with the outlet, the middle part lower part of casing rotates and is connected with the rocking arm, the rear portion right side of rocking arm is provided with the handle, the right side of rocking arm is provided with the stopper, the upper end of rocking arm is rotated and is connected with the pull ring, the left side of pull ring is provided with the pulling rope, the front end of pulling rope is walked around pull ring fixedly connected with spacing ring, the right side swing joint of pull ring has the spring, the right-hand member swing joint of spring has the connecting block, the right side fixedly connected with pressure filter of connecting block, the inside of outlet is provided with the electric wire.

As a further description of the above technical solution:

the rear part of the limiting block is fixedly connected with a shell.

As a further description of the above technical solution:

the lower part of the bolt penetrates through the base and is in threaded connection with a fixing plate.

As a further description of the above technical solution:

and the right end of the fixed plate is fixedly connected with a filter press.

As a further description of the above technical solution:

the upper end of the rocker arm is movably connected with a spring.

As a further description of the above technical solution:

the rear part of the handle is rotatably connected with a shell.

As a further description of the above technical solution:

the outer end of the handle is movably connected with a rubber sleeve.

As a further description of the above technical solution:

and screws are arranged at four corners of the outer edge of the shell.

The utility model has the following beneficial effects:

1. according to the utility model, firstly, the shell penetrates through the base through the bolt and is fixed on the fixing plate, and the fixing plate is fixedly connected to the filter press, so that the pull rope switch is fixed on the filter press to achieve the purpose of fixed installation, and in addition, the pull rope is pulled and is connected with the rocker arm through the pull ring, so that the rocker arm rotates at the lower part of the shell and touches the micro switch in the shell, so that the electric wire is powered on or powered off, and the pulling control effect is achieved.

2. According to the utility model, the rocker arm is driven to reset by the pull ring through the spring, the rocker arm is limited by the limiting block, the rocker arm is prevented from rotating beyond the range, the problem that equipment cannot normally operate due to the fact that the pull-cord switch cannot return in time is prevented, after the spring is additionally arranged, the pull-cord switch can return in time, the normal operation of the equipment is ensured, the misoperation is avoided, the labor intensity of personnel is reduced, and the rocker arm is worthy of great popularization.

Drawings

Fig. 1 is a perspective view of a novel self-returning pull-cord switch according to the present invention;

fig. 2 is a front view of a novel self-return pull-cord switch according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

Illustration of the drawings:

1. a base; 2. a fixing hole; 3. a bolt; 4. a housing; 5. a screw; 6. an outlet; 7. a rocker arm; 8. a handle; 9. a rubber sleeve; 10. a limiting block; 11. a fixing plate; 12. a pull ring; 13. pulling the rope; 14. a spring; 15. a filter press; 16. connecting blocks; 17. a limiting ring; 18. an electric wire.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a novel self-return pull switch comprises a base 1, a fixed hole 2 is formed in the middle of the base 1, a fixed plate 11 is fixedly connected to the lower portion of the base 1, a bolt 3 is connected to the inner thread of the fixed hole 2, a shell 4 is fixedly connected to the upper portion of the base 1, a wire outlet 6 is formed in the left side of the shell 4, a rocker arm 7 is rotatably connected to the lower portion of the middle of the shell 4, a handle 8 is arranged on the right side of the rear portion of the rocker arm 7, a limit block 10 is arranged on the right side of the rocker arm 7, the rocker arm 7 is limited through the limit block 10 to prevent the rocker arm 7 from rotating beyond the range, a pull ring 12 is rotatably connected to the upper end of the rocker arm 7, a pull rope 13 is arranged on the left side of the pull ring 12, a limit ring 17 is fixedly connected to the pull rope 13 by bypassing the pull ring 12, the limit ring 17 enables the end of the pull rope 13 to be fixed, a spring 14 is movably connected to the right side of the pull ring 12, and a connecting block 16 is movably connected to the right end of the spring 14, the right side fixedly connected with pressure filter 15 of connecting block 16, it resets to drive rocking arm 7 through pull ring 12 through spring 14, prevent because of the unable return in time of stay cord switch, cause the production of the unable normal operating problem of equipment, it fixes base 1 on fixed plate 11 to run through bolt 3 with casing 4, and fixed plate 11 fixed connection is on pressure filter 15, thereby make the stay cord switch fix on pressure filter 15, reach fixed mounting's mesh, the inside of outlet 6 is provided with electric wire 18, pulling rope 13 and connecting rocking arm 7 through pull ring 12 is pulled in the pulling, make rocking arm 7 rotate and touch the inside micro-gap switch of casing 4 in casing 4 lower part, make electric wire 18 circular telegram or outage, reach the effect of pulling control.

Rear portion fixedly connected with casing 4 of

stopper

10, 1 threaded connection of base has fixed plate 11 is run through to the lower part of bolt 3, the right-hand member fixedly connected with pressure filter 15 of fixed plate 11, the upper end swing joint of rocking arm 7 has spring 14, install spring 14 additional after, the stay cord switch can return in time, guarantee equipment normal operating, the maloperation avoids appearing, and personnel intensity of labour has been reduced, handle 8's rear portion rotates and is connected with casing 4, handle 8's outer end swing joint has rubber sleeve 9, rubber sleeve 9 can prevent that the staff from electrocuting, and guarantee handle 8's external friction, reach the effect of the operation of being convenient for, casing 4's outward flange four corners is provided with screw 5, screw 5 makes shell 4 connect closely, prevent that external environment from leading to the fact the influence to its inside.

The working principle is as follows: firstly, the shell 4 is fixed on a fixed plate 11 by penetrating through the base 1 through a bolt 3, and the fixed plate 11 is fixedly connected on a filter press 15, thereby fixing the pull-cord switch on the filter press 15 to achieve the purpose of fixed installation, additionally pulling the pull-cord 13 and connecting the rocker arm 7 through the pull-ring 12, so that the rocker arm 7 rotates at the lower part of the shell 4 and triggers a micro switch in the shell 4, the electric wire 18 is electrified or deenergized, the effect of pulling control is achieved, in addition, the rocker arm 7 is driven to reset through the pull ring 12 by the spring 14, the rocker arm 7 is limited by the limiting block 10, the rocker arm 7 is prevented from rotating beyond the range, the problem that the equipment cannot normally operate because the pull rope switch cannot reset in time is prevented, after the spring 14 is additionally arranged, the pull switch can return in time, so that the normal operation of the equipment is ensured, the misoperation is avoided, and the labor intensity of personnel is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a novel self return's stay cord switch, includes base (1), its characterized in that: the improved multifunctional wrench is characterized in that a fixing hole (2) is formed in the middle of the base (1), a fixing plate (11) is fixedly connected to the lower portion of the base (1), a bolt (3) is connected to the inner thread of the fixing hole (2), a shell (4) is fixedly connected to the upper portion of the base (1), a wire outlet (6) is formed in the left side of the shell (4), a rocker arm (7) is rotatably connected to the lower portion of the middle of the shell (4), a handle (8) is arranged on the right side of the rear portion of the rocker arm (7), a limiting block (10) is arranged on the right side of the rocker arm (7), a pull ring (12) is rotatably connected to the upper end of the rocker arm (7), a pull rope (13) is arranged on the left side of the pull ring (12), a limiting ring (17) is fixedly connected to the pull ring (12) and is bypassed by the front end of the pull rope (13), and a spring (14) is movably connected to the right side of the pull ring (12), the right end of the spring (14) is movably connected with a connecting block (16), the right side of the connecting block (16) is fixedly connected with a filter press (15), and an electric wire (18) is arranged inside the wire outlet (6).

2. The novel self-returning pull-cord switch according to claim 1, wherein: the rear part of the limiting block (10) is fixedly connected with a shell (4).

3. The novel self-returning pull-cord switch according to claim 1, wherein: the lower part of the bolt (3) penetrates through the base (1) and is connected with a fixing plate (11) through threads.

4. The novel self-returning pull-cord switch according to claim 1, wherein: the right end of the fixed plate (11) is fixedly connected with a filter press (15).

5. The novel self-returning pull-cord switch according to claim 1, wherein: the upper end of the rocker arm (7) is movably connected with a spring (14).

6. The novel self-returning pull-cord switch according to claim 1, wherein: the rear part of the handle (8) is rotatably connected with a shell (4).

7. The novel self-returning pull-cord switch according to claim 1, wherein: the outer end of the handle (8) is movably connected with a rubber sleeve (9).

8. The novel self-returning pull-cord switch according to claim 1, wherein: and screws (5) are arranged at four corners of the outer edge of the shell (4).