CN2379816Y - Internal fixation device for optical breaker - Google Patents

Abstract

The utility model discloses an internal fixation device for an optical breaker, which comprises a casing and photovoltaic elements, wherein the casing forms a concave shape. Two containing chambers are arranged on the casing, a light axis window is arranged on the middle part of the inner side wall of each containing chamber and the photovoltaic elements are embedded in the containing chambers. One side wall of each containing chamber is provided with an elastic clamping tenon, both sides of each clamping tenon are respectively provided with a sealing slot and the walls of both sides of each clamping tenon are very thin. Each clamping tenon has a bevel which has the definite gradient, and each photoelectric element comprises a transmitting element and a receiving element. The utility model has the advantages that the external interference light ray can be baffled, the assembly is easy and the checking time of a mould can be saved.

Description

A kind of Photo Interrupter internal fixing device

The utility model relates to the Photo Interrupter internal fixing device, refers to a kind of Photo Interrupter stationary installation that external light disturbs that intercepts especially.

General Photo Interrupter is to the fixing following several types of element:

1. wringing fit, as shown in Figures 1 and 2.There is following problem in this structure: the one, assemble relatively difficulty, and need tool using during owing to manually-operated, and cause hand injured easily.The 2nd, to pedestal (Housing) and component size accuracy requirement height, make because of the pressure that need are bigger, make semi-automatic board often break down.The 3rd, need repeatedly repair a die (2～4 times), reception time is long, the size of accessory (Component) and pedestal is normal because of there is error in a batch difference, small difference or cause cooperate tension be difficult for assembling or pine come off easily.

2. interior trip is shown in Fig. 3,4,5.Its advantage is that Assembly Action is simple, but structure can be out of shape after the demoulding, causes to fix the strength reduction, influences result of use.

3. race slide block is shown in Fig. 6,7,8.Its advantage is that assembling is easy, good fixing effect, damages easily but problem one is a mould structure; The 2nd, go out burr easily; The 3rd, need to consider the light leak problem; Owing in appearance tangible holes 30 arranged, whether the working environment that needs to consider element has external light source interferes with photoelectric crystal or infrared ray light and leaks outside and cause the misoperation of other photovalve.

4. add a cover, shown in Fig. 9,10.Its advantage is a good fixing effect, but problem: the one, cost is higher, how to add a cover manufacture process together, increases man-hour, and many pairs are added a cover mould and material, increase cost; The 2nd, be subjected to the volume restrictions of pedestal.

5. some glue is shown in Figure 11,12.Its advantage is a good fixing effect, but shortcoming: the one, cost increases; The 2nd, the production process trouble increases gluing, two programs of baking, and material causes variation because of high-temperature baking easily; The 3rd, glue amount and some glue position need accurately control, avoid a glue to hinder light on light path and pass through; The 4th, go wrong and can't repair, can only scrap;

6. punching is shown in Figure 13,14.Its advantage is that the material accuracy requirement is not high, but shortcoming: the one, cost increases, many one secondary drilling tool, many one drilling process; The 2nd, the photoelectric characteristic instability for the syringe needle 60 of avoiding punching breaks part, needs headspace for the punching error, and this space error often causes part to move at the pedestal meta to depart from optical axis, and then influences photoelectric characteristic; The 3rd, fixed effect is not good, come off easily, and the easy abrasion deformation of tapping and plugging machine syringe needle, it is uncertain to punch, and not only influences photoelectric characteristic and comes off easily.

7. Fastening tenon structure in second kind shown in Figure 15,16,17, is established in the both sides of interior trip and to be worn groove 70 so that elasticity to be provided.Its advantage is that assembling easily, do not need accurate material size, production process is simple, the mould reception time is short, but shortcoming is to need to consider the light leak problem, owing in appearance tangible holes arranged, whether the working environment that needs to consider element has external light source interferes with photoelectric crystal or infrared ray light and leaks outside and cause the misoperation of other photovalve.

The shortcoming of comprehensive above-mentioned various structures often causes assembling to go up and qualitative puzzlement, and has influence on delivery date; Secondly, for reaching above-mentioned every target, the degree of accuracy that material size requires is very high, is difficult to control when producing in batches, and need do repairing a die repeatedly when die sinking.

The purpose of this utility model is that a kind of Photo Interrupter internal fixing device will be provided, and it can intercept external interference light, and assembling is saved the mould reception time easily.

The purpose of this utility model is achieved in that a kind of Photo Interrupter internal fixing device, comprise that one is the shell and the photovalve of concave shape, on shell, be provided with two rooms, the middle part of each room madial wall is provided with the optical axis window, photovalve embeds room, sidewall at each room is respectively equipped with a rubber-like trip, and the dual-side of each trip is provided with a closed groove, and the wall of each trip both sides is thinner.

Photovalve comprises radiated element and receiving element.

Described trip is interior trip.

Described trip is provided with the inclined-plane of certain slope.

The utility model is owing to adopted new Photo Interrupter inner structure, sidewall at each room is respectively equipped with a rubber-like trip, photovalve embeds room, the dual-side of each trip is provided with a closed groove, the wall of each trip both sides is thinner, can solve the assembling matching problem of photovalve and plastic parts (shell) effectively, and can reduce the disqualification rate of product, be on the shell of concave shape one and be provided with two rooms, one side thickness of each room makes trip in the rubber-like, because the wall of interior trip both sides is thinner, required elasticity in the time of providing the demoulding for material, and reinstatement after the demoulding, therefore, can make photovalve be easy to assembling, and be difficult for being pulled out; It can reduce because of the number of times that repairs a die that the size matching problem causes (shortening the die sinking time), and can save required instrument; Owing in the design of shell 1, do not have holes, can prevent to be subjected to light from outside and disturb and cause generation of false action.

Below in conjunction with concrete structure and the principle of work of accompanying drawing detailed description according to a kind of Photo Interrupter internal fixing device that the utility model proposes.

Fig. 1 is the outside drawing that traditional Photo Interrupter adopts the mode that is tightly fixed.

Fig. 2 is the cut-open view that traditional Photo Interrupter adopts the mode that is tightly fixed.

Fig. 3 is the outside drawing of trip fixed form in traditional Photo Interrupter adopts.

Fig. 4 is the cut-open view of trip fixed form in traditional Photo Interrupter adopts.

Fig. 5 is the cut-open view that the trip fixed form was out of shape when the demoulding in traditional Photo Interrupter adopted.

Fig. 6 is the outside drawing that traditional Photo Interrupter adopts the slide block fixed form.

Fig. 7 is the cut-open view that traditional Photo Interrupter adopts the slide block fixed form.

Fig. 8 is the cut-open view that traditional Photo Interrupter adopts the mould structure of slide block fixed form.

Fig. 9 is that traditional Photo Interrupter adopts the outside drawing of adding a cover fixed form.

Figure 10 is that traditional Photo Interrupter adopts the cut-open view of adding a cover fixed form.

Figure 11 is the exploded view that traditional Photo Interrupter adopts some glue fixed form.

Figure 12 is the cut-open view that traditional Photo Interrupter adopts some glue fixed form.

Figure 13 is the outside drawing that traditional Photo Interrupter adopts the punching fixed form.

Figure 14 is the cut-open view that traditional Photo Interrupter adopts the punching fixed form.

Figure 15 is the outside drawing of Fastening tenon structure fixed form in traditional Photo Interrupter adopts second kind.

Figure 16 is the cut-open view of Fastening tenon structure fixed form in traditional Photo Interrupter adopts second kind.

Figure 17 is the cut-open view of Fastening tenon structure fixed form deformation when the demoulding in traditional Photo Interrupter adopts second kind.

Figure 18 is an outside drawing of the present utility model.

Figure 19 is the outside drawing of another angle of the present utility model.

Figure 20 is a cut-open view of the present utility model.

Figure 21 is a partial perspective cutaway view of the present utility model.

Shown in Figure 18,20, the utility model is a kind of Photo Interrupter internal fixing device, comprises that one is the members such as shell 1, a radiated element 2 and a receiving element 3 of concave shape.

Wherein, on shell 1, be provided with two rooms 11,12, as shown in figure 19, each room 11, the middle part of 12 madial walls is provided with an optical axis window 13,14, and at each room 11, a sidewall upper limb of 12 be respectively equipped with one have the tool on certain slope inclined-plane flexible in trip 15,16, trip 15 in each, 16 dual-side is provided with a closed groove 17,18, as shown in figure 21, make trip 15 in this, the wall of 16 both sides is than book, object required elasticity when the demoulding can be provided, and reinstatement after the demoulding, because interior trip 15,16 is flexible, so photovalve (radiated element 2 and receiving element 3) can be too not tight when assembling, simultaneously because of flexible cause, can be with interior trip 15,16 do more greatly, to obtain better fixed effect.

Like this, photovalve is easy to assembling, and be difficult for being pulled out, so can avoid element to get loose, can solve the assembling matching problem of photovalve and shell 1 effectively, simultaneously, can reduce the increase of the number of times that repairs a die that causes because of the size matching problem, reduce the product disqualification rate, owing in the design of shell 1, do not have holes, can prevent to be subjected to light from outside and disturb and cause generation of false action.

Claims (4)

1, a kind of Photo Interrupter internal fixing device, comprise that one is the shell and the photovalve of concave shape, on shell, be provided with two rooms, the middle part of each room madial wall is provided with the optical axis window, photovalve embeds room, it is characterized in that: the sidewall at each room is respectively equipped with a rubber-like trip, and the dual-side of each trip is provided with a closed groove, and the wall of each trip both sides is thinner.

2, a kind of Photo Interrupter internal fixing device as claimed in claim 1, it is characterized in that: photovalve comprises radiated element and receiving element.

3, as claim 1,2 described a kind of Photo Interrupter internal fixing devices, it is characterized in that: described trip is interior trip.

4, as claim 1,2 described a kind of Photo Interrupter internal fixing devices, it is characterized in that: described trip is provided with the inclined-plane of certain slope.

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