CN214732209U

CN214732209U - Tensile pull-cord switch

Info

Publication number: CN214732209U
Application number: CN202120178681.6U
Authority: CN
Inventors: 郑斌
Original assignee: Nanjing Debao Sensor Technology Co ltd
Current assignee: Nanjing Debao Sensor Technology Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-11-16
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses a pull cord switch of tensile relates to pull cord switch technical field, and when solving the one end of pulling the swing arm in the twinkling of an eye, the slope appears in the both ends atress difference of swing arm, and the atress is uneven when rotating leads to the swing arm card dead easily, and the tension of stay cord increases, and tensile strength is not good, and the load of stay cord increases, leads to the cracked problem of stay cord easily. One side of the stay cord switch body is provided with the casing, and the casing passes through the screw connection with the stay cord switch body, one side of casing is provided with the swing arm, the both sides of swing arm all are provided with the lug, and lug and casing set up structure as an organic whole, be provided with the guiding hole on the lug, be provided with the arc guide bar between lug and the swing arm, and the arc guide bar passes through the screw connection with the swing arm, the one end of arc guide bar runs through the guiding hole and extends to one side of lug, and arc guide bar and lug sliding connection, the outside of arc guide bar is provided with the spring, spring and arc guide bar sliding connection.

Description

Tensile pull-cord switch

Technical Field

The utility model relates to a stay switch technical field specifically is a tensile stay switch.

Background

The pull-cord switch is commonly called as an emergency stop switch, is a switch type sensor, and is used for stopping a conveyor through the action of a switch when the conveyor needs to be stopped when acting on a belt type conveying field. 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 driving 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.

At present, need stimulate the swing arm with the help of the stay cord when the stay cord switch uses, when the one end of pulling the swing arm in the twinkling of an eye, the slope appears in the both ends atress difference of swing arm, and the atress is uneven when rotating leads to the swing arm card dead easily, and the tension of stay cord increases, and tensile property is not good, and the load of stay cord increases, leads to the stay cord fracture easily, can not satisfy the user demand. Therefore, a pull switch with tensile strength is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tensile stay cord switch to when proposing the one end of pulling the swing arm in the twinkling of an eye in solving above-mentioned background art, the slope appears in the both ends atress difference of swing arm, and the atress is uneven when rotating leads to the swing arm card to die easily, and the tension of stay cord increases, and tensile strength is not good, and the load of stay cord increases, leads to the cracked problem of stay cord easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tensile stay switch, includes the stay switch body, one side of the stay switch body is provided with the casing, and the casing passes through the screw connection with the stay switch body, one side of casing is provided with the swing arm, the both sides of swing arm all are provided with the lug, and lug and casing set structure as an organic whole, be provided with the guiding hole on the lug, be provided with the arc guide bar between lug and the swing arm, and the arc guide bar passes through the screw connection with the swing arm, the one end of arc guide bar runs through the guiding hole and extends to one side of lug, and arc guide bar and lug sliding connection, the outside of arc guide bar is provided with the spring, and the both ends of spring laminate with swing arm and lug respectively mutually, spring and arc guide bar sliding connection.

Preferably, one side at swing arm both ends all is provided with the pull ring, and the pull ring rotates with the swing arm to be connected, one side of pull ring is provided with the steel wire stay cord, and the steel wire stay cord is connected structure as an organic whole with the pull ring.

Preferably, the inside of stay cord switch body is provided with the cam connecting axle, and the one end of cam connecting axle runs through casing and swing arm and extends to one side of swing arm, the cam connecting axle is joggled with the swing arm, one side of swing arm is provided with coupling nut, and coupling nut and cam connecting axle threaded connection.

Preferably, be provided with the spacing groove in the swing arm, the spacing groove is provided with two, and two spacing groove settings are in the both sides of swing arm, one side of spacing groove is provided with the stopper, and stopper and casing set up structure as an organic whole, the one end of stopper is provided with the rubber pad, and the rubber pad is connected with the stopper laminating, the one end of rubber pad extends to the inside of spacing groove, and the rubber pad laminates with the swing arm mutually.

Preferably, a mounting seat is arranged below the shell, the mounting seat and the shell are arranged into an integral structure, a wire outlet end is arranged on one side of the pull switch body, and the wire outlet end and the pull switch body are arranged into an integral structure.

Preferably, one side of swing arm is provided with the handle bar that resets, and resets the handle bar and be connected structure as an organic whole with the cam connecting axle, one side of the handle bar that resets is provided with the pilot lamp, and pilot lamp and casing pass through bolted connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a device passes through the lug, the setting of arc guide bar and spring, arc guide bar and lug sliding connection, can play the spacing effect of direction to pivoted swing arm when the pulling swing arm, ensure that the swing arm rotates and keeps the level, avoided in the twinkling of an eye the pulling swing arm to result in its both ends to produce the angle difference, ensure the stability of swing arm pulling, the spring can promote when the swing arm resets, thereby make thorough the reseing of swing arm, and can play the effect of certain buffering to the swing arm, indirect tensile strength that has improved. The problem of in the twinkling of an eye the one end of pulling the swing arm lead to the swing arm crooked, the pulling blocks easily and dies, the not good of result of use is solved.

2. The utility model discloses a device passes through the setting of stopper and rubber pad, can play spacing effect to the swing arm with the help of the stopper, and the rubber pad can avoid the swing arm directly to collide with the stopper, plays the guard action to the swing arm that resets, avoids the swing arm to collide with the damage. The problem of the swing arm that resets directly with limit structure collision impaired easily is solved.

Drawings

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

fig. 2 is a side view of the present invention;

fig. 3 is a partially enlarged view of the area a of fig. 1 according to the present invention;

fig. 4 is a partially enlarged view of the area B of fig. 1 according to the present invention.

In the figure: 1. a pull switch body; 2. a housing; 3. a wire outlet end; 4. a mounting seat; 5. swinging arms; 6. a pull ring; 7. a steel wire rope; 8. resetting the hand lever; 9. an indicator light; 10. a limiting block; 11. a cam connecting shaft; 12. a bump; 13. an arc-shaped guide rod; 14. a guide hole; 15. a spring; 16. a connecting nut; 17. a limiting groove; 18. and (7) a rubber pad.

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.

Referring to fig. 1-4, the present invention provides an embodiment: a tensile pull switch comprises a pull switch body 1, a shell 2 is arranged on one side of the pull switch body 1, the shell 2 is connected with the pull switch body 1 through a screw, a swing arm 5 is arranged on one side of the shell 2, bumps 12 are arranged on two sides of the swing arm 5, the bumps 12 and the shell 2 are arranged into an integral structure, guide holes 14 are formed in the bumps 12, an arc guide rod 13 is arranged between the bumps 12 and the swing arm 5, the arc guide rod 13 is connected with the swing arm 5 through a screw, one end of the arc guide rod 13 penetrates through the guide holes 14 and extends to one side of the bumps 12, the arc guide rod 13 is connected with the bumps 12 in a sliding mode, the arc guide rod 13 and the bumps 12 can play a role in guiding and limiting on the rotating swing arm 5, the pulling stability of the swing arm 5 is improved, the tensile performance is indirectly improved, a spring 15 is arranged outside the arc guide rod 13, and the both ends of spring 15 laminate with swing arm 5 and lug 12 mutually respectively, and spring 15 and arc guide bar 13 sliding connection, spring 15 can promote when swing arm 5 resets to thorough swing arm 5 that falls resets.

Further, one side at 5 both ends of swing arm all is provided with pull ring 6, and pull ring 6 rotates with swing arm 5 to be connected, and one side of pull ring 6 is provided with steel wire stay cord 7, and steel wire stay cord 7 is connected structure as an organic whole with pull ring 6. Corresponding rotation can be carried out when the steel wire stay cord 7 pulling force angle changes through pull ring 6 to ensure pulling force maximize's pulling swing arm 5.

Further, the inside of the pull-cord switch body 1 is provided with a cam connecting shaft 11, one end of the cam connecting shaft 11 penetrates through the shell 2 and the swing arm 5 and extends to one side of the swing arm 5, the cam connecting shaft 11 is in joggle joint with the swing arm 5, one side of the swing arm 5 is provided with a connecting nut 16, and the connecting nut 16 is in threaded connection with the cam connecting shaft 11. The swing arm 5 and the pull-cord switch body 1 can be connected into an integral structure through the cam connecting shaft 11 and the connecting nut 16.

Further, be provided with spacing groove 17 on the swing arm 5, spacing groove 17 is provided with two, and two spacing grooves 17 set up in the both sides of swing arm 5, and one side of spacing groove 17 is provided with stopper 10, and stopper 10 sets up structure as an organic whole with casing 2, and the one end of stopper 10 is provided with rubber pad 18, and rubber pad 18 is connected with stopper 10 laminating, and the one end of rubber pad 18 extends to the inside of spacing groove 17, and rubber pad 18 laminates with swing arm 5 mutually. Can play spacing effect to the swing arm 5 that resets through stopper 10, and rubber pad 18 can avoid stopper 10 and swing arm 5 direct contact to play the effect of protection to swing arm 5.

Further, a mounting seat 4 is arranged below the casing 2, the mounting seat 4 and the casing 2 are arranged to be of an integrated structure, a wire outlet end 3 is arranged on one side of the pull switch body 1, and the wire outlet end 3 and the pull switch body 1 are arranged to be of an integrated structure. The control line can be connected with the pull-cord switch through the wire outlet end 3, so that electric control is performed.

Further, one side of swing arm 5 is provided with the handle bar 8 that resets, and resets handle bar 8 and is connected structure as an organic whole with cam connecting axle 11, and one side of the handle bar 8 that resets is provided with pilot lamp 9, and pilot lamp 9 passes through the screw connection with casing 2. The swing arm 5 can be reset through the reset hand lever 8, and the indicator light 9 can correspondingly indicate the working state of the pull-cord switch.

The working principle is as follows: when in use, the control line is connected with the wire outlet end 3, the steel wire pull rope 7 is connected with the pull ring 6, the swing arm 5 can be driven to rotate by pulling the steel wire pull rope 7, the swing arm 5 is connected with the pull rope switch by means of the cam connecting shaft 11, the switch of the pull-cord switch can be realized along with the rotation of the cam connecting shaft 11, the arc-shaped guide rod 13 is connected with the convex block 12 in a sliding way, the function of guiding and limiting can be realized when the swing arm 5 rotates, thereby ensuring that the two ends of the swing arm 5 are kept horizontal, improving the stability of the rotation of the swing arm 5, indirectly improving the tensile property, and the spring 15 can push the swing arm 5 when the swing arm 5 rebounds, thereby thorough reset swing arm 5, stopper 10 then carries on spacingly to swing arm 5, and rubber pad 18 can avoid swing arm 5 and stopper 10 direct contact to play the effect of protection to swing arm 5, and can play certain buffering effect.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a pull-cord switch of tensile, includes pull-cord switch body (1), its characterized in that: the pull switch is characterized in that a shell (2) is arranged on one side of the pull switch body (1), the shell (2) is connected with the pull switch body (1) through a screw, a swing arm (5) is arranged on one side of the shell (2), protruding blocks (12) are arranged on two sides of the swing arm (5), the protruding blocks (12) and the shell (2) are arranged into an integral structure, guide holes (14) are formed in the protruding blocks (12), arc-shaped guide rods (13) are arranged between the protruding blocks (12) and the swing arm (5), the arc-shaped guide rods (13) are connected with the swing arm (5) through screws, one ends of the arc-shaped guide rods (13) penetrate through the guide holes (14) and extend to one side of the protruding blocks (12), the arc-shaped guide rods (13) are connected with the protruding blocks (12) in a sliding mode, springs (15) are arranged outside the arc-shaped guide rods (13), and two ends of the springs (15) are respectively attached to the swing arm (5) and the protruding blocks (12), the spring (15) is connected with the arc-shaped guide rod (13) in a sliding mode.

2. A pull-cord switch as claimed in claim 1, wherein: one side at swing arm (5) both ends all is provided with pull ring (6), and pull ring (6) rotate with swing arm (5) and be connected, one side of pull ring (6) is provided with steel wire stay cord (7), and steel wire stay cord (7) are connected structure as an organic whole with pull ring (6).

3. A pull-cord switch as claimed in claim 1, wherein: the inside of stay cord switch body (1) is provided with cam connection axle (11), and the one end of cam connection axle (11) runs through casing (2) and swing arm (5) and extends to one side of swing arm (5), cam connection axle (11) and swing arm (5) joggle, one side of swing arm (5) is provided with coupling nut (16), and coupling nut (16) and cam connection axle (11) threaded connection.

4. A pull-cord switch as claimed in claim 1, wherein: be provided with spacing groove (17) on swing arm (5), spacing groove (17) are provided with two, and two spacing grooves (17) set up the both sides in swing arm (5), one side of spacing groove (17) is provided with stopper (10), and stopper (10) and casing (2) set up structure as an organic whole, the one end of stopper (10) is provided with rubber pad (18), and rubber pad (18) are connected with stopper (10) laminating, the one end of rubber pad (18) extends to the inside of spacing groove (17), and rubber pad (18) laminate mutually with swing arm (5).

5. A pull-cord switch as claimed in claim 1, wherein: the lower part of the shell (2) is provided with a mounting seat (4), the mounting seat (4) and the shell (2) are arranged into an integral structure, one side of the pull-cord switch body (1) is provided with a wire outlet end (3), and the wire outlet end (3) and the pull-cord switch body (1) are arranged into an integral structure.

6. A pull-cord switch as claimed in claim 1, wherein: one side of swing arm (5) is provided with handle bar (8) that resets, and resets handle bar (8) and be connected structure as an organic whole with cam connecting axle (11), one side of handle bar (8) that resets is provided with pilot lamp (9), and pilot lamp (9) pass through the screw connection with casing (2).