CN217847725U - Travel switch with buffer structure for elevator - Google Patents

Abstract

The utility model discloses a travel switch for elevator with buffer structure, including travel switch storehouse and the ejector pin of sliding clamping at the up end in travel switch storehouse, the up end central authorities in travel switch storehouse are provided with the ejector pin, the upper end front side of ejector pin is provided with the gyro wheel body, the rear end of gyro wheel body is provided with positioning mechanism, another terminal surface of ejector pin is fixed with the buffer board, the lower extreme of buffer board is provided with buffer gear, the inside lower extreme in travel switch storehouse is provided with the buffer beam, the lower extreme of buffer beam is provided with the cavity. Can be spacing to the buffer board through the location spout that sets up, can avoid the buffer board to appear squinting, guarantee the subsequent stability of buffer board, and connecting plate one is connected with two accessible pivots of connecting plate, and then can make the buffer board have good buffering effect, and with the cooperation of multiunit buffer spring, can avoid the buffer board to appear squinting follow-up use to the reset spring that sets up can guarantee the anti buffering effect of buffer beam.

Description

Travel switch with buffer structure for elevator

Technical Field

The utility model relates to a travel switch field especially relates to a travel switch for elevator with buffer structure.

Background

The travel switch is one of position switches (also called limit switches), and is a common small-current master control electrical appliance. The contact of the mechanical moving part is made to act by collision to realize connection or disconnection of the control circuit, so as to achieve a certain control purpose. Generally, such switches are used to limit the position or stroke of the movement of the machine, so that the moving machine can automatically stop, move in reverse direction, shift or automatically move back and forth according to a certain position or stroke;

need travel switch to control and operate at elevator work, but most travel switch is poor at buffering effect, can lead to the contact point to appear rocking or skew during the use to for its subsequent use inconvenient problem.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a travel switch for elevator with buffer structure can solve the big travel switch of many and can lead to the contact point to appear rocking or squinting when the buffer effect is poor during the use to the technical problem who brings inconvenience for its follow-up use.

In order to solve the technical problem, the utility model provides a following technical scheme: the stroke switch with the buffer structure for the elevator comprises a stroke switch bin and a top rod which is connected to the upper end face of the stroke switch bin in a sliding and clamping mode, wherein the top rod is arranged in the center of the upper end face of the stroke switch bin, a roller body is arranged on the front side of the upper end of the top rod, a positioning mechanism is arranged at the rear end of the roller body, a buffer plate is fixed to the other end face of the top rod, a buffer mechanism is arranged at the lower end of the buffer plate, a buffer rod is arranged at the lower end inside the stroke switch bin, and a cavity is arranged at the lower end of the buffer rod.

As an optimal technical scheme of the utility model, the front surface in travel switch storehouse is fixed with the location lug, the outside joint of location lug has spacing lid, spacing lid slides and cup joints in the location lug outside and spacing lid and travel switch storehouse and closely laminates.

As a preferred technical scheme of the utility model, positioning mechanism includes fixed plate, location rolling piece and connecting axle, the fixed plate slip joint just runs through in the internal portion of gyro wheel at the ejector pin, location rolling piece is fixed at the inner wall of fixed plate and fixed plate in ejector pin upper end one side looks joint, connecting axle threaded connection is at the inner wall of fixed plate and connecting axle and gyro wheel looks joint.

As a preferred technical scheme of the utility model, travel switch storehouse inner wall both sides are the symmetry and set up the location spout of cross section trapezium structure, can slide from top to bottom between location spout and the buffer board.

As a preferred technical scheme of the utility model, buffer gear includes connecting plate one, connecting plate two and buffer spring, connecting plate one is connected the lower extreme at the buffer board, connecting plate two is connected and is constituted the X font structure between lower extreme and connecting plate one and the connecting plate two of connecting plate one, buffer spring is the symmetry and fixes the lower extreme at connecting plate one and connecting plate two.

As an optimized technical scheme of the utility model, the lower extreme of connecting plate two is personally submitted the symmetry and is fixed with the contact point.

As a preferred technical scheme of the utility model, reset spring and buffer beam have been cup jointed to the surface of buffer beam and have passed through to constitute between reset spring and the cavity and slide elastic construction from top to bottom.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. the limit cover can be limited through the arranged positioning bump, the limit cover can be prevented from being deviated, the limit cover can be used for blocking the travel switch bin, dust is prevented from entering the travel switch bin due to the fact that the travel switch bin has a gap, the connecting shaft can be screwed into the fixed plate, the limit cover and the fixed plate are matched, the roller body can be limited, the roller body can be prevented from being deviated, and the positioning roller block can reduce the friction force between the fixed plate and the connecting shaft as well as between the fixed plate and the roller body, so that the roller body can be conveniently replaced subsequently;

2. can be spacing to the buffer board through the location spout that sets up, can avoid the buffer board to appear squinting, guarantee the subsequent stability of buffer board, and connecting plate one is connected with two accessible pivots of connecting plate, and then can make the buffer board have good buffering effect, and with the cooperation of multiunit buffer spring, can avoid the buffer board to appear squinting follow-up use, and the reset spring who sets up can guarantee the anti buffering effect of buffer beam, and then can make equipment normally work.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view structure diagram of the travel switch cabin of the present invention;

FIG. 3 is a schematic view of the internal structure of the travel switch cabin of the present invention;

fig. 4 is a schematic view of the structure of the push rod of the present invention.

Wherein: 1. a travel switch bin; 2. positioning the bump; 3. a limiting cover; 4. a top rod; 5. a roller body; 6. a fixing plate; 7. positioning a rolling block; 8. a connecting shaft; 9. a buffer plate; 10. positioning the chute; 11. a first connecting plate; 12. a second connecting plate; 13. a buffer spring; 14. a contact point; 15. a buffer rod; 16. a cavity; 17. a return spring.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, and all of them belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the utility model provides a travel switch for elevator with buffer structure, including travel switch storehouse 1 and the ejector pin 4 of slip joint at the up end of travel switch storehouse 1, the up end central authorities of travel switch storehouse 1 are provided with ejector pin 4, the upper end front side of ejector pin 4 is provided with gyro wheel body 5, the rear end of gyro wheel body 5 is provided with positioning mechanism, another terminal surface of ejector pin 4 is fixed with buffer board 9, the lower extreme of buffer board 9 is provided with buffer gear, the inside lower extreme of travel switch storehouse 1 is provided with buffer beam 15, the lower extreme of buffer beam 15 is provided with cavity 16.

As a further implementation manner of this embodiment, as shown in fig. 1, a positioning protrusion 2 is fixed on the front surface of the travel switch bin 1, a limiting cover 3 is clamped on the outer side of the positioning protrusion 2, the limiting cover 3 is slidably sleeved on the outer side of the positioning protrusion 2, and the limiting cover 3 is tightly attached to the travel switch bin 1, the limiting cover 3 can be limited by the positioning protrusion 2, so that the limiting cover 3 can be prevented from being deviated, the limiting cover 3 can be used for plugging the travel switch bin 1, and dust is prevented from entering the travel switch bin 1 due to a gap in the travel switch bin 1.

As a further implementation manner of this embodiment, as shown in fig. 1, fig. 2 and fig. 4, the positioning mechanism includes a fixing plate 6, a positioning roller block 7 and a connecting shaft 8, the fixing plate 6 is slidably connected to the top rod 4 and penetrates through the roller body 5, the positioning roller block 7 is fixed on the inner wall of the fixing plate 6, the fixing plate 6 is connected to one side of the top end of the top rod 4 in a clamping manner, the connecting shaft 8 is connected to the inner wall of the fixing plate 6 in a threaded manner, the connecting shaft 8 is connected to the roller body 5 in a clamping manner, and the connecting shaft 8 can be screwed into the fixing plate 6, and the fixing plate and the connecting shaft are matched to limit the position of the roller body 5, so as to prevent the roller body 5 from deviating, and the positioning roller block 7 can reduce the friction force between the fixing plate 6 and the connecting shaft 8 and the roller body 5, so as to facilitate subsequent replacement of the roller body 5.

As a further implementation manner of this embodiment, as shown in fig. 1-2, two sides of the inner wall of the travel switch bin 1 are symmetrically provided with positioning chutes 10 having trapezoidal cross sections, the positioning chutes 10 and the buffer plate 9 can slide up and down, the positioning chutes 10 can limit the buffer plate 9, so as to prevent the buffer plate 9 from deviating, and ensure the subsequent stability of the buffer plate 9.

As a further implementation manner of this embodiment, as shown in fig. 1-3, the buffer mechanism includes a first connecting plate 11, a second connecting plate 12 and buffer springs 13, the first connecting plate 11 is connected to the lower end of the buffer plate 9, the second connecting plate 12 is connected to the lower end of the first connecting plate 11, and an X-shaped structure is formed between the first connecting plate 11 and the second connecting plate 12, the buffer springs 13 are symmetrically fixed to the lower ends of the first connecting plate 11 and the second connecting plate 12, and the first connecting plate 11 and the second connecting plate 12 can be connected through a rotating shaft, so that the buffer plate 9 has a good buffer effect, and are matched with multiple sets of buffer springs 13, thereby preventing the buffer plate 9 from being displaced for subsequent use.

As a further embodiment of the present embodiment, as shown in FIGS. 1-3, the lower end surfaces of the two connecting plates 12 are symmetrically fixed with contact points 14, and the contact points 14 are arranged to buffer the contact points 14 on the upper side of the rod 15 for contact, so as to ensure the subsequent use.

As a further embodiment of this embodiment, as shown in fig. 3, the outer surface of buffer rod 15 is sleeved with return spring 17, and buffer rod 15 passes through the elastic structure that slides up and down between return spring 17 and cavity 16, and the anti-buffer effect of buffer rod 15 can be guaranteed by the return spring 17 that sets up, and then equipment can normally work.

It should be noted that, in the present application, a travel switch for an elevator with a buffer structure is required, first, it is required to know that the positioning sliding groove 10 formed on the inner wall of the travel switch cabin 1 can limit the buffer board 9, so as to prevent the buffer board 9 from deviating, and at the same time, the positioning sliding groove 10 can limit the buffer rod 15, and at the same time, the return spring 17 disposed outside the buffer rod 15 can make the buffer rod 15 have a good buffer effect, so as to prevent the buffer rod 15 from being damaged, and the disposed cavity 16 can protect, and then the roller body 5 is placed at the front side of the push rod 4, and the fixed plate 6 is slidably clamped inside the roller body 5, and the disposed positioning roller block 7 can clamp the fixed plate 6 and the push rod 4, so as to prevent the subsequent use from being affected by a large friction force between the push rod 4 and the fixed plate 6, and then the connecting shaft 8 is screwed into the fixed plate 6, so as to limit the roller body 5,

during the use, through spacing lid 3 card at the location lug 2 in the 1 outside in stroke switch storehouse, and the location lug 2 that sets up can be spacing to spacing lid 3, and when ejector pin 4 promoted downwards, can make the contact 14 of the contact point 14 of two 12 lower extremes of connecting plate and the contact point 14 of buffer beam 15 upper end, and when the touching, the connecting plate 11 and the two 12 rotations of connecting plate of setting, and with buffer spring 13 cooperation, can have two buffering effects, can avoid travel switch poor at buffering effect, and lead to contact point 14 to appear rocking or squinting.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a travel switch for elevator with buffer structure, includes travel switch storehouse (1) and ejector pin (4) that the slip joint is at the up end in travel switch storehouse (1), its characterized in that: the upper end face center of the stroke switch bin (1) is provided with an ejector rod (4), the upper end front side of the ejector rod (4) is provided with a roller body (5), the rear end of the roller body (5) is provided with a positioning mechanism, the other end face of the ejector rod (4) is fixed with a buffer plate (9), the lower end of the buffer plate (9) is provided with a buffer mechanism, the inner lower end of the stroke switch bin (1) is provided with a buffer rod (15), and the lower end of the buffer rod (15) is provided with a cavity (16).

2. The limit switch for an elevator having a buffering structure according to claim 1, wherein: the front surface of travel switch storehouse (1) is fixed with location lug (2), the outside joint of location lug (2) has spacing lid (3), spacing lid (3) slip cup joint in location lug (2) the outside and spacing lid (3) closely laminate with travel switch storehouse (1).

3. The limit switch for an elevator having a buffering structure according to claim 1, wherein: positioning mechanism includes fixed plate (6), location rolling piece (7) and connecting axle (8), fixed plate (6) slip joint is in ejector pin (4) and run through inside gyro wheel body (5), location rolling piece (7) are fixed at the inner wall of fixed plate (6) and fixed plate (6) in ejector pin (4) one side looks joint, connecting axle (8) threaded connection is in the inner wall of fixed plate (6) and connecting axle (8) and gyro wheel body (5) looks joint.

4. The limit switch for an elevator having a buffering structure according to claim 1, wherein: the stroke switch bin (1) is characterized in that two sides of the inner wall of the stroke switch bin (1) are symmetrically provided with positioning sliding grooves (10) with cross section trapezoidal structures, and the positioning sliding grooves (10) and the buffer plate (9) can slide up and down.

5. The limit switch for an elevator having a buffering structure according to claim 1, wherein: buffer gear includes connecting plate one (11), connecting plate two (12) and buffer spring (13), the lower extreme at buffer board (9) is connected in connecting plate one (11), connecting plate two (12) are connected and are constituted X font structure between the lower extreme of connecting plate one (11) and connecting plate two (12), buffer spring (13) are the symmetry and fix the lower extreme at connecting plate one (11) and connecting plate two (12).

6. The limit switch for an elevator having a buffering structure according to claim 5, wherein: and contact points (14) are symmetrically fixed on the lower end surface of the second connecting plate (12).

7. The limit switch for an elevator having a buffering structure according to claim 1, wherein: the outer surface of the buffer rod (15) is sleeved with a return spring (17) and the buffer rod (15) forms an up-and-down sliding elastic structure with the cavity (16) through the return spring (17).

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