CN209925492U - Proximity switch stop block - Google Patents

Abstract

The utility model discloses a proximity switch dog relates to proximity switch technical field, a proximity switch dog includes the support, spring and dog, the support includes base and circular pillar, the spring housing is on circular pillar, the central point on circular pillar's top puts and is equipped with a screw, fixation nut is connected to the screw, the dog is a circular steel pipe, the dog lower extreme seals with the steel sheet, be equipped with a round hole at the center of steel sheet, the round hole just enough circular pillar passes, fixation nut's diameter is greater than the diameter of circular pillar, it can nestification be in the same place to make support and dog through fixation nut, guarantee simultaneously that the dog can not bounce when the spring bounces and break away from the support, the upper end opening of dog, the opening part sets up a circular shape stifled silk. The proximity switch stop block with the structure can be close to the problem that the proximity switch is often damaged due to equipment vibration, has the advantages of simplicity, convenience and easiness in operation, improves the production efficiency, and can be widely applied to systems with the same production mode.

Description

Proximity switch stop block

Technical Field

The utility model relates to a proximity switch technical field specifically is a proximity switch dog.

Background

The proximity switch is a position switch which can be operated without mechanical direct contact with a moving part, and when the sensing surface of the object proximity switch reaches an action distance, the switch can be actuated without mechanical contact and any pressure applied, so that a direct current electric appliance is driven or a control instruction is provided for a computer (plc) device. The proximity switch is also called contactless proximity switch, and is an ideal electronic switching value sensor. When the metal detection body approaches to the induction area of the switch, the switch can send out an electric command rapidly without contact, pressure and spark, and accurately reflect the position and the stroke of the motion mechanism.

In modern industrial production, proximity switches are often used to detect the operation position of equipment, and since the effective detection distance of the proximity switch is within 1 cm, a stop block is installed at the position to be detected to perform auxiliary measurement, for example, detection of the forward and backward positions of a walking beam in large equipment in steel rolling operation. However, in the case of large-scale equipment, vibration is generated during operation, especially in the case of large-scale hydraulic equipment, and the vibration generated during operation of the equipment often causes the proximity switch to be damaged by the stop block, so that shutdown maintenance is required, and the production efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies and defects in the prior art, the utility model provides a proximity switch dog, simple structure, and can solve this kind because the equipment vibration often bumps into proximity switch's problem.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a proximity switch dog, includes support, spring and dog, the support includes base and circular pillar, and the support lower extreme is the base, the base upper end is provided with circular pillar, the spring housing is on circular pillar, the central point on circular pillar's top puts and is equipped with a screw, the dog is a circular steel pipe, and the dog lower extreme is sealed with the steel sheet, is equipped with a round hole that just enough circular pillar passed at the center of steel sheet, fixation nut is connected to the screw, the upper end opening of dog, and the opening part sets up a circular shape stifled silk.

As a further improvement, the diameter of the fixing nut is larger than the outer diameter of the circular pillar, and simultaneously, the diameter of the fixing nut is smaller than the inner diameter of the circular steel pipe of the stop block, so that the support and the stop block can be nested together through the fixing nut.

As a further improvement of the utility model, the base is a square metal plate.

As a further improvement of the utility model, the circular pillar is a solid round bar.

Compared with the prior art, the utility model discloses the beneficial effect who has does: the utility model discloses a dog that has a spring of proximity switch design, when proximity switch was touch to equipment because of the action vibration, can also can protect proximity switch when detecting the signal because the effect of spring has a cushioning effect to the power of this collision, and simple structure, the preparation is easy, and is with low costs, has good anticollision effect, can wide application in each system of the same kind of mode of production.

Drawings

The invention will be further described with reference to the accompanying drawings and specific embodiments:

fig. 1 is a cross-sectional view of a proximity switch of the present invention;

FIG. 2 is a cross-sectional view of a stent structure;

FIG. 3 is a perspective view of a stent structure;

FIG. 4 is a sectional view of a stopper structure;

fig. 5 is a perspective view of the stopper structure.

In the figure: 1. the device comprises a support, 11 circular support columns, 12 fixing nuts, 13 screw holes, 14 bases, 2 springs, 3 stoppers, 31 blocking wires, 32 steel plates and 33 circular holes.

It is noted that in the description of the present invention, 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Detailed Description

In order to make the technical solution and the advantages of the present invention more clear and more obvious, the present invention is further described in detail with reference to the accompanying drawings and the specific embodiments, it should be understood that the specific embodiments described herein are only used for understanding the present invention, and are not used for limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

The structure of the utility model is shown in figure 1, a square base 14 of the bracket 1 is a metal plate, and the round pillar 11 is a solid round bar. The spring 2 is sleeved on the circular support 11, and the spring 2 does not need to be welded with the base 1 for replacement. The block 3 is sleeved on the circular pillar 11 of the base 1.

As shown in fig. 2 and 3, a screw hole 13 is formed at the center of the top end of the circular pillar 11 of the bracket 1, and the screw hole 13 is used for connecting the fixing nut 12. A recess is formed on the surface of the fixing nut 12 to be rotated by a screwdriver, and is operated to be coupled to the circular pole 11 at the time of assembly. The diameter of the fixing nut 12 is larger than the diameter of the circular support 11. The bracket 1 and the stop block 3 can be nested together through the fixing nut 12, and meanwhile, the stop block 3 is ensured not to be bounced off the bracket 1 when the spring 2 bounces.

As shown in fig. 4 and 5, the stopper 3 is made of a circular steel pipe with a diameter larger than that of the circular support 11, the upper end of the stopper 3 is open, the lower end is sealed by a steel plate 32, and a circular hole 33 which is just enough for the circular support 11 to pass through is reserved in the center of the steel plate 32. The stopper 3 is provided at an upper end thereof with a circular iron locking wire 31, and a recess is formed in a surface of the locking wire 31 to be rotated by a screwdriver, and is coupled to the stopper 3 by being operated through the recess at the time of assembly.

At the time of assembly, the first step: sleeving the spring 2 on the circular support 11, and performing the second step: the stop block 3 is also sleeved on the circular support 11, and the third step is as follows: fixing the fixing nut 12 on the circular support 11, and the fourth step: the blocking wire 31 is fixed on the block 3. This design may facilitate replacement of parts when they are damaged.

The utility model relates to a 14 fixed mounting of base of proximity switch dog are in fixed position on the walking beam of certain main equipment, when the walking beam is close to proximity switch, dog 3 contacts proximity switch at first, owing to set up spring 2 on this proximity switch dog, so play a cushioning effect to proximity switch's impact, in the time of detecting signal, can also protect proximity switch.

Claims (4)

1. A proximity switch block, comprising: including support (1), spring (2) and dog (3), support (1) includes base (14) and circular pillar (11), and support (1) lower extreme is base (14), the base upper end is provided with circular pillar (11), spring (2) cover is on circular pillar (11), the central point on the top of circular pillar (11) puts and is equipped with a screw (13), dog (3) are a circular steel pipe, and dog (3) lower extreme is sealed with steel sheet (32), is equipped with a round hole (33) at the center of steel sheet (32), the diameter of round hole (33) can satisfy circular pillar (11) and pass from this round hole (33), fixation nut (12) is connected in screw (13), the upper end opening of dog (3), and the opening part sets up a circular shape stifled silk (31).

2. A proximity switch block as recited in claim 1, wherein: the diameter of the fixing nut (12) is larger than the outer diameter of the circular support (11), meanwhile, the diameter of the fixing nut (12) is smaller than the inner diameter of the round steel pipe of the stop block (3), and the support (1) and the stop block (3) can be nested together through the fixing nut (12).

3. A proximity switch block as recited in claim 1, wherein: the base (14) is a square metal plate.

4. A proximity switch block as recited in claim 1, wherein: the circular support (11) is a solid circular rod.

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