RU2415060C1 - Above-centre locking device - Google Patents

Abstract

FIELD: transport; packaging.

SUBSTANCE: invention refers to process devices of connection of optical communication lines. Above-centre locking device includes handle connected to the lever hinged to the first part of locked item; on free end of handle there is engagement surface engaging the second part of the item and fixing the above parts of the item together when handle is in position above the centre line. On free end of handle there is engaging projection to create initial opening force during interaction of handle with the second part of the item at the initial unlocking stage of item. On free end of handle there is additional engaging projection to create initial closing force when the handle interacts with the second part of item when it is being interlocked with the first part of item. Engaging projections are located on opposite sides of handle in its longitudinal plane, and engagement surface of handle is located between engaging projections. Connection of handle to lever is movable by means of longitudinal slot in lever and axis located in movable way in slot and attaching the handle to the lever. Catch which is located so that it can interact with the main engaging projection of handle is made on the second part of item.

EFFECT: simpler design of the device and higher operating reliability.

4 cl, 9 dwg

Description

The invention relates to technological means for connecting structural volumetric modules having a predominantly round shape, in particular to such means, which include parts pivotally connected by one end, the other ends of which have a screed. The invention is intended for use on optical communication lines.

Known devices for screed, each of which contains locking parts, some ends of which are pivotally connected to each other, and others are connected by a locking mechanism having a rotary handle and means for fixing it in the working position (RU 2163220 C2, 2001-02-20; WO 9633922 A1 , 1996-10-31; GB 420967 A, 1934-12-11; US 2628811 A, 1953-02-17; US 2752174 A, 1956-06-26; US 2775806 A, 1957-01-01; US 4969923 A , 1990-11-13; US 2289422 A, 1939-07-14; EP 1155967 A1, 2001-11-21; EP 0088227 A1, 1983-09-14; CA 2219024 A1, 1996-10-31 (analogue); FR 2595081 A1, 1987-09-04; FR 2372981 A1, 1978-06-30).

GB 420967 A discloses a locking device comprising parts of the device that are interconnected and connected at one end by a hinge, and the other ends of the device are connected by a lever coupler, the parts of the device having grooves for the axes connecting the elements with the rod to be placed therein.

In US 2628811 A presents a locking device containing interconnected parts of the device that are connected at one end with each other by a hinge, and the other ends of the device are connected by a lever tie, and the parts of the device have protrusions, one of which has a pivotally mounted lever, and at the other end traction adjustable along the length, while the lever has a L-shaped grip.

In US 2752174 A presents a two-link mechanism made of pivotally interconnected parts of the locking device.

No. 2775806 A discloses a locking device consisting of four connected parts having protrusions at the ends, a lever is connected to one of the protrusions, the other adjacent protrusion has a circular surface for interacting with the recess of the handle, and a length-adjustable rod is fixed to the other protrusion.

US 4969923 A discloses a locking device comprising pivotally connected parts with protrusions at adjacent ends, one of which is pivotally attached to a handle, and a gripper interacts with the other protrusion, which is pivotally connected to the handle, which is connected to the bracket of the device part by a rod.

WO 9200890 A1 discloses a locking device comprising pivotally connected parts, a mechanism connecting parts of the device and including a rod pivotally connected at one end to one part of the device, the other end of which is pivotally connected to a lever, the latter being pivotally connected to a grip cooperating with the other part of the device .

Other specified sources of information present clamping devices or couplers having a simple design, the main element of which is a pivot arm acting on the tie rod.

Of the known devices, the closest to this invention is a supercentral locking device (RU 2163220 C2, 2001-02-20), which contains a handle associated with a lever pivotally connected to the first part of the lockable product, an engagement surface is made on the free end of the handle, which engages the second part of the product and fixing the indicated parts of the product together when the handle is in position above the line of centers.

The device presented in patent RU 2163220 C2 has a relatively complex design due to the presence on the handle of elongated elements that are designed to interact with round protrusions made on a pair of protrusions of the device. Elongated elements and round protrusions, in addition to complicating the design, reduce the reliability of the device due to large bending loads on the elongated elements of the device when they interact with round protrusions.

The technical result of the invention is to simplify the design of the device and increase the reliability of its operation.

The technical result is achieved by a supra-center locking device containing a handle connected to a lever pivotally connected to the first part of the product to be locked, an engagement surface is made on the free end of the handle, which engages the second part of the product and fixes these parts of the product together when the handle is in position above the center line.

At the free end of the handle there is an engaging protrusion to create an initial opening force when the handle interacts with the second part of the product during the initial stage of opening of the product.

An additional engaging protrusion is made at the free end of the handle to create an initial closing force when the handle interacts with the second part of the product when it closes with the first part of the product.

The engaging protrusions are located on opposite sides of the handle in its longitudinal plane, and the engagement surface of the handle is located between the engaging protrusions.

The connection of the handle with the lever is made movable by means of a longitudinal groove in the lever and an axis movably located in the groove connecting the handle with the lever.

On the second part of the product is made a hook, which is located with the possibility of interaction with the main engaging protrusion of the handle.

Figure 1 shows the device in operation, worn on the casing of optical cable adhesions,

Figure 2 - device in a spatial image,

Figure 3 - device in a spatial image with the parts apart,

Figure 4 - the device in the spatial image in the process of breeding in the sides of the parts of the device by the handle,

Figure 5 - device in a spatial image in a top view,

Figure 6 - device in operation, front view,

In Fig.7 - device, front view, right execution,

On Fig - device, front view, left execution,

In Fig.9 - the lever of the device.

The supercentral locking device (Fig. 1) contains the first part 1 of the product, in this case the device, the second part 2, while the adjacent ends of the locking parts 1 and 2 of the product are pivotally connected to each other by means of the eyes 3 and the axis 4 located in them. Other adjacent ends of the locking parts 1 and 2 have means 5 and 6 for closing and connecting these parts.

The first connection means 5 (FIG. 3) is a first pair of protrusions 7 extending outwardly and a lever 9 pivotally connected thereto by the first axis 8, while the axis 8 is located in the holes 10 of the protrusions 7 (FIG. 2). In another embodiment of the device (not shown), the lever 9 can be pivotally connected to the first part 1 of the device in any known manner. In this case, the first part of the device may not have protrusions 7.

The second connection means 6 is a second outwardly extending second pair of protrusions 11 (FIG. 3), which has a second device part 2. The protrusions 11 have holes 12, designed to accommodate the axis 8 in the case of a shift of the handle from one part of the device to another part (with left and right versions of the device). In another example embodiment of the device (not shown), the protrusions 11 of the holes 12 do not have.

The device has a handle 13 interacting with the second pair of protrusions 11 with a groove 14 in it, in which the end of the lever 9 is located, which is connected by the axis 15 to the middle part of the handle or to a place close to its middle part. An engagement surface 16 is made at the end of the handle, interacting with the recesses 17 made on the second pair of projections 11 in the working position of the handle when it is fixed on the second part 2 of the device. The engagement surface 16 serves to engage the second part 2 of the product in the recesses 11 and to fix the parts 1 and 2 of the product in a position where the handle 13 is above the center line 18 (Fig. 7). Line 18 connects the centers of axis 8 and axis 15.

The recesses 17 are made rounded, for example semicircular, such as they are shown in the drawings, but these recesses may have a different shape, different from the semicircular shape. The engagement surface 16 has a predominantly shape corresponding to the recesses 17, but this surface 16 may have a different shape that differs from the semicircular shape, for example, a cam shape having a surface portion that is radially different from the radius of the recesses 17. This is necessary for the design movement elements of the device when closing its parts 1 and 2.

The lever 9 at its free end has a longitudinal groove 19 (Fig. 3), in which the axis 15 is movably connected, connecting the handle 13 with the lever 9.

At the free end of the handle 13 there is a main engaging protrusion 20 (Fig. 4) to create an initial opening force when the handle interacts with the second part 2 of the product during the initial stage of opening of the product. An additional engaging protrusion 21 is also made at the free end of the handle 13 to create an initial closing force during the interaction of the handle 13 (Fig. 3) with the second part 2 of the product when it is closed with the first part 1 of the product.

The engaging protrusions 20 and 21 are located on opposite sides of the handle in its longitudinal plane (FIG. 6), and the handle engaging surface 16 is located between the engaging protrusions 20 and 21. The lever 9 (FIG. 5), mainly its end, is located in the groove 14 of the handle 13.

In this example embodiment of the invention, the rounded recesses 17 are also made on the first pair of protrusions 7 (Fig.6, 8). In this embodiment of the device, its parts 1 and 2 of the device have an identical shape. On each part of the device, a latch is made in the form of a tooth 22 located with the possibility of its interaction with the recess 23 (Fig. 5), which is made on the free end 24 of the handle 13.

On each part of the device near the rounded recess 17 there are made inclined platforms 25 (Fig. 7) connecting the outer surface 26 of each part of the device with the rounded recess 17. Each engagement surface 16 of the handle is arranged to interact with the outer surface 26 of the device part, the surface 25 of the inclined platform and the surface of the rounded recess 17 when turning the handle 13 in the process of locking the device.

Each part of the device has an eyelet 27 with an opening 28, which is aligned in the working position of the device with the hole 29 of the handle and in these holes there is a locking element (not shown) for stationary or permanent fixing of the handle in the working position of the device.

In this example, the device parts 1 and 2 are made identical in shape, providing interchangeability when moving from the left side to the right side and vice versa. This is done in order to reduce production costs, reduce operating costs, ease of installation, dismantling and repair of the device.

On the second part 2 of the product, a hook 30 is made (Fig. 6), which is arranged to interact with the main engaging protrusion 20 of the handle 13. The hook 30 is made on the inside of each protrusion 11.

The device operates as follows. Parts 1 and 2 of the device are bred to the sides as shown in FIG. 3, and a casing 31 (FIG. 1) of optical cable joints 32 of optical communication lines is inserted into the opening of the device between its parts. Then, the handle 13 is rotated (Fig. 3) clockwise around the axis 15. As a result, the engaging protrusion 21 abuts against the protrusions 11, the handle rotates in the indicated direction, the axis 15 is displaced in the longitudinal groove 19 of the lever 9 by an amount all the way into the lever. Then the axis 15 stops and around it begins to rotate in the indicated direction, the handle 13, which pulls the lever 9, the axis 8 and part 1 of the device to its part 2. Parts 1 and 2 of the device come closer. After that, the engagement surface 16 comes into contact with the recesses 17 of the protrusions 11 and occupies the position shown in FIG. 2.

In the extreme right working position, the handle 13 is fixed in the recesses 17 by the engagement surface 16. The handle takes its final position when it is locked with the eyelet 27 on the corresponding part of the device. In this position, the handle is locked, for example, on part 2 of the device with a tooth 22 (Fig.6), passing through the recess 23 of the handle (Fig.5) and engaged with the back of the handle. When a tooth passes in the recess of the handle, the eyelet 27 is bent outwardly from the handle due to its elasticity, and after the tooth passes the recess, the eyelet is straightened, the tooth on the handle snaps and locks the handle in the working position. To permanently fix the handle on part 2 of the device, a locking element or lock (not shown) is inserted into the hole 28 of the eyelet 27 and the hole 29 of the handle and the handle is locked in the stationary operating position of the device.

The breeding of parts 1 and 2 of the device and the release of the casing from it is carried out in the manner described below. In the process of breeding parts often requires significant effort to separate one part of the device from another part and from the surface of the casing 31 (figure 1). This is due to the adhesion of surfaces to each other during prolonged use of the device.

In order to separate parts 1 and 2 of the device from each other and tear them from the surface of the casing 31, for example, by creating a radially directed component of the separation force, the handle 13 is moved to the position shown in figure 4, and at the same time it is moved into the groove 19 ( figure 3) of the lever 9 axis 15 in its extreme left position. Then, the engaging protrusion 20 of the handle 13 (FIG. 4) is engaged with the hook 30 (FIG. 4). By turning the handle around the axis 15 counterclockwise, the handle is moved in the indicated direction, part 2 of the device is torn off from part 1. Since when the handle is turned on the hook 30, a radially directed component of the separation force is created, part 2 of the device is torn off the surface of the casing 31. Parts 1 and 2 devices are repelled from each other and are torn off from the surface of the casing 31 (figure 1), which is then separated from the device.

In the event of a breakdown of one of the parts of the device, a new part is used, which is suitable for both the right and left versions of the device - with a handle mounted on the right or left side of the device. Connect parts 1 and 2 of the device axis 4 (figure 2). In the event of a device breakdown, either the right or left side of another broken device can be used, since both parts of the device are completely interchangeable.

This design arrangement, significantly improved and changed due to the exclusion of several elements from it and the introduction of new elements and connections into it, significantly increased the reliability of the device by reducing bending loads on the handle elements. This allowed us to simplify the device and increase its service life. In addition, the complete interchangeability of parts of the device, ease of assembly and repair.

Claims (4)

1. Supracentral locking device containing a handle connected to a lever pivotally connected to the first part of the lockable product, an engagement surface is made on the free end of the handle, engaging the second part of the product and fixing said parts of the product together when the handle is in position above the center line, characterized in that on the free end of the handle there is an engaging protrusion to create an initial opening force when the handle interacts with the second part of the product during the initial stage of mucking products. 2. The device according to claim 1, characterized in that an additional engaging protrusion is made on the free end of the handle to create an initial closing force when the handle interacts with the second part of the product when it closes with the first part of the product, and the engaging protrusions are located on opposite sides of the handle in longitudinal plane, and the engagement surface of the handle is located between the engaging protrusions. 3. The device according to claim 1, characterized in that the connection of the handle with the lever is made movable by means of a longitudinal groove in the lever and an axis movably located in the groove connecting the handle with the lever. 4. The device according to any one of the preceding paragraphs, characterized in that on the second part of the product is made a hook, which is located with the possibility of interaction with the main engaging protrusion of the handle.

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