RU192266U1 - Device for joining two pipes at an arbitrary angle - Google Patents

Abstract

The proposed utility model relates to connecting products of two pipes used in the manufacture of medical, sports equipment, equipment used for adaptive physical education, and products for other purposes. The most significant field of application of the proposed device is the field of medicine, where, for example, both for treatment and rehabilitation of patients suffering from various pathologies leading to partial immobility, imbalance, as well as patients with muscle contractures, autism, Down syndrome, cerebral palsy devices that prevent the possibility of injury. 5 cp f-ly, 8 ill.

Description

The proposed device relates to connecting products used in the manufacture of medical, sports equipment, equipment used for adaptive physical education, products for other purposes. The most significant field of application of the proposed device is the field of medicine, where, for example, both for treatment and rehabilitation of patients suffering from various pathologies, leading to partial immobility, imbalance, as well as patients with muscle contractures, it is necessary to use such devices that would prevent their injuries.

Known USSR patent No. 3733 (353512) from 1948, patent RU 60957 U1 2006. patent for utility model RU 19368 U1 2001. All products described therein are designed for connecting at right angles two cylindrical parts, usually made in the form of pipes, and usually used in construction.

So, for example, in the patent for utility model RU 19368 U1, the clamp of a cylindrical strut in the body of a connecting element called by the author - a coupling is achieved due to the force arising between the end surface of the screw and the side surface of the cylinder. Thus, only a point contact appears. It is known that the contact spot in such a connection is a line whose size is determined by the diameter of the screw itself. It is clear that in this design a little effort is enough to turn one part around another.

A common drawback is the ability to connect parts only at right angles, and not at any, and the inability to exclude the rotation of a cylindrical part around its axis inside the body of the device for connecting them.

Closest to the proposed utility model are a swivel clamp

https://yandex.ru/images/search?text=%D1%85%D0%BE%D0%BC%D1%83%D1%82%20%D0%BF%D0%BE%D0%B2%D0 % BE% D1% 80% D0% BE% D1% 82% D0% BD% D1% 8B% D0% B9 & stype = imaqe & lr = 10735 & source = wiz.

This device has excellent technical characteristics and performance, which have been repeatedly tested in operating conditions. However, when working with people with disabilities using appropriate devices, situations often arise when it becomes necessary to connect two tubes of a different profile, cross-section and size, which can be part of a simulator or other mechanism. And this angle is not pre-set during design, but arises during the setup of a fixture or simulator. At the same time, it is necessary to guarantee the strength and reliability of the connected unit, to exclude the rotation of the connected pipes in the device itself. As a rule, these situations are a consequence of the physical characteristics of patients using rehabilitation devices. Swivel clamp does not have such capabilities.

As a result, for the creation of simulators, walkers, verticalizers, other products and various devices used both in medicine, in working with people with disabilities, and in occupations with adaptive physical culture, it became necessary to be able to fix the parts of the above products at an angle by adopting them under the physical characteristics of each patient. This is possible before or during classes. At the same time, there remains the need to exclude 100% the possibility of rotation around its axis, as well as any other movement of fixed pipes in the device. The lack of reliability in the joints and nodes is the cause of instability of the structure as a whole and, as a result, of injury to users.

The technical result of the utility model is to ensure maximum patient safety during its operation / movement using various devices, the design of which includes units and / or products using devices for connecting at an angle of pipes, excluding any movement of connected parts, especially when the pipes are made in the form two cylindrical bodies of revolution.

This phenomenon insures not only the friction forces in the joints that arise as a result of the creation of the clamping force, but also the working conditions for shearing or crushing of the fixing element, the clamp. An example of a shear joint is a key / pin joint. Methods of calculating such structures are widely known. As an example, a single clamp with a diameter of 6 mm during work on shear / shearing can carry a load of 260 kg in operation, with a maximum of 700 kg, depending on the material used in its production, which goes far beyond the maximum loads that appear when using the above mentioned simulators and devices.

The essence of the proposed utility model is expressed in the aggregate of essential features, in which the device for connecting two pipes in equipment for the rehabilitation of patients, the body of which consists of two parts, through each of which passes one fixed pipe, in each part of the device case there are cuts directed from its end surfaces to the side of the holes for the pipes and connecting them, made in such a way that in the plane of the cut is the longitudinal axis of the hole for the fixed pipe, at the end The device has openings for clamping fasteners and clamping fasteners themselves, which allow the device body to be deformed, while the surface of the device’s pipe connecting holes is crimped to the external surfaces of the pipe itself when passing through the device, and there are holes with fixed fixing elements located at different ends of the device passing through the body of the device and the area of the holes for the pipes, while the locking elements

made with the possibility of passing both through the housing of the device and the holes in the fixed pipes, while in one part of the housing there is a recess, and there is also a hole for the retainer and the retainer itself, the axis of which is in the middle part of the length of the recess, and which is perpendicular to the axis of the recess itself and in the second part of the housing there is a protrusion made in the form of a body of revolution, on the surface of which there is a groove containing a hole for the retainer whose axis is perpendicular to the axis of rotation of the protrusion itself, and which p located in the recess of the other part of the device, while the protrusion and the recess are made with the possibility of rotation of both parts of the device relative to their common longitudinal axis, which is perpendicular to the longitudinal axes of the connected pipes.

In special cases of its implementation or use, the device may contain a through hole on the groove of the protrusion. Depending on the conditions, this hole may be threaded, in which case the latch itself has the same thread.

The number of holes made on the protrusion, located around the circumference of the groove perpendicular to the axis of rotation of the protrusion and intended for the latch, may be more than one. A large number of holes in the groove weakens the groove itself. As an alternative to this solution, a mouse tooth can be applied to the groove.

It is possible to arrange several holes for the latches located on the surface of the device with a recess. These holes may be threaded.

It is possible to execute a part of the device with a protrusion without holes in the groove, and the groove itself can be V-shaped in plan.

Pipes of different sizes and geometries can be fixed in each part of the device.

Separate and independent from each other use of parts of the device for pairing two pipes is allowed.

The causal relationship of the above features with the technical result of the utility model is expressed in the fact that the proposed device allows you to:

- have a greater number of options for the angular positions of one part of the device relative to another. In this case, the clamps will work on a cut, which in turn guarantees the exclusion of cranking and movement in the joints, especially if the pipe (s) are made in the form of a cylindrical body of revolution.

- to have a greater number of adjustments necessary for the best adjustment of devices for the individual physical characteristics of patients.

- have different shapes of grooves in plan. One of them may be a V-shaped plan. In this case, it is desirable that the angle of the tip of the retainer, deployed towards the groove, coincides with the angle of the V-shaped groove itself. This will create a number of significant advantages: the contact between the surface of the groove and the retainer will occur along the lines, and not at the point, as happens in the case of contact of a circle and a plane; a wedge is formed, which provides good reliability of the connection;

- the number of clamps involved in the clamp can be more than one, all of them will also work on a cut, which will neutralize possible axial loads on the stretching of the parts of the device, it is possible to apply a mouse tooth to the surface of the groove;

- significantly increase the ability to adjust the position of the parts of the device, with the pipes fixed in them, relative to each other, while maintaining safety not only nodal connections in devices, but also for patients in general.

- to be able to create a "bank" of mutually compatible parts of the device to obtain various joints, various sizes and geometries of pipes, which will provide a larger number of safe joints. The binding, in this case, will be the same diameters of the protrusions and recesses of the parts of the device with the appropriate type of connection landings.

- to be able to safely link together various displacement devices, for example, a verticalizer, which is often used to create additional support points for patients, as well as the possibility of verticalization and movement in space.

- be able to create new safe devices for patients.

The method of clamping and fixing the pipes in different parts of the device does not depend on the selected angle at which the axes of the connected pipes intersect, if you look at them in plan. In parts of the housing of the proposed device there are cuts directed from its end surfaces towards the holes for the pipes, connecting them and made in such a way that the longitudinal axis of the hole for fixed pipes is located in the plane of the cut. Near the ends on each side of the device there are holes for clamping fasteners and clamping fasteners themselves. Due to this, the device body is deformed in such a way that the surface of the device openings made for connecting the pipes have the ability to squeeze the outer surfaces of the pipes themselves passing through the device. As a result of this, the resulting contact area has a significant size, which directly affects the size of the friction force, especially if the pipe (s) is made in the form of a cylindrical body of revolution. In addition, there are two more holes that are located at different ends of the device, passing through the body of the device and the area of the holes for the cylindrical body of revolution. Through these two holes, fixing elements are installed passing both through the device body and the holes in the pipes to be fixed.

The holes made for the locking elements can be either through or through. In addition, the holes for the locking elements may be threaded.

The fixing elements passing both through the device body and through the pipes to be fixed themselves work for shear or crushing, thus guaranteeing the exclusion of movement along the axis and rotation in the connection if the pipe (s) are made in the form

cylindrical body rotation. Turning and / or moving can happen only after the destruction of the elements themselves, for which it is necessary to make such efforts that a person is not able to reproduce even taking into account the leverage arising in the construction of medical or other equipment.

The essence of the utility model is illustrated by drawings:

in FIG. 1 shows a General view of a device for connecting at an arbitrary angle of two pipes

in FIG. 2 is a perspective view of the device of FIG. 3 shows a section aa device

in Fig 4. presents an embodiment of the grooves and holes for the retainer

Fig. 5 shows a V-shaped embodiment of a groove in plan and an embodiment of a retainer with a tapered shank

in Fig 6. presents an embodiment of threaded not through holes on the groove of the protrusion

in Fig 7. presents an embodiment of the device and the connected pipe is a cylindrical body of revolution.

On Fig. 8 presents an embodiment of the device in which the connected pipes differ in geometry and size.

A device for connecting at an arbitrary angle of two pipes consists of:

1 - The first part of the device

2 - The second part of the device

3 - Clamping fasteners

4 - Locking element

5 - The hole for the locking element

6 - hole in the groove

7 - Lock

8 - Projection

9 - Groove

10. Lock hole

11. 1st connected pipe

12. 2nd connected pipe

13. Clamp mounting hole

14. Deepening

Different sequences of assembly steps are possible when connecting its parts to pipes. Consider one of them. We connect two pipes made in the form of 2 cylindrical bodies of revolution.

Enter in the first part of the device body pos. 1 2nd connected pipe pos. 12, in which the hole for the fixing element pos. 4 is pre-made. We align the hole for the fixing element pos. 5 and the hole in the connected pipe. We introduce the fixing element pos 4. Repeat the procedure with the second part of the device body pos.2. and pos. 11, 1st connected pipe. The cuts are made in both parts of the casing of the device, which extend from the end surfaces of the casing towards the holes for the pipes to be connected in such a way that the longitudinal axis of the pipe is in the plane of the cut. The cut itself can, as it reaches the hole under the first connected pipe, and go beyond it. See FIG. 2, the second part of the device

In each part of the device case there are holes pos. 13. FIG. 2 for clamping fasteners pos. 3 FIG. 1. As clamping fasteners can be used threaded connections, eccentric and others. This choice is determined by the convenience of the connection in the product. For example, using the threaded clamps pos. 3, we deform the device case. Due to this deformation, we create a friction force and, as a result, we fix the pipe inside one part of the device body. Repeat these steps in another part of the device. In the resulting connection, additional locking elements pos. 4 exclude the possibility of rotation and movement of the pipe along the axis in the connection of the claimed device, and threaded clamps fix the products relative to each other, as well as select the gaps that may occur in the joints.

Enter the ledge pos. 8 with a groove pos. 9 of the second part of the body pos. 2 devices in the recess pos. 14 of the first part of the device casing pos. 1 FIG. 1, with a pipe fixed in it (in our example, a cylindrical body of revolution) pos. 12 Fig. 7. In the second part, the pipe (cylindrical body of revolution), pos. 11, Fig. 7 is already fixed. We rotate the axes “a” and “b” of the cylindrical bodies of revolution connected by the device to the angle “L” of interest to us, see View A. FIG. 7, and fix the position chosen by us with the clamp pos 7.

In the FIG. 1 latch 7 is driven into the hole of the latch located in the first part of the device body, pos. 10 equipped, in the proposed embodiment, with a thread. Next, the latch pos. 7 passes into the hole in the groove pos.6 made on the groove pos. 9. Some of the hole location options in the groove are shown in FIG. 3, FIG. 4 and FIG. 6. In the case when the holes of the clamp pos.10 on the first half of the device body are more than one, we repeat the last operation for all of them. The hole in the groove pos.6 can be either through, or blind, or threaded, or multiple, etc. As a result of such a connection, we are guaranteed to exclude the possibility of rotation around its axis of cylindrical bodies of revolution or movement along the axis of the profile pipe, exclude the possibility of axial movement of parts of the device’s body, and exclude the possibility of mutual rotation around the common axis of the parts of the device’s body.

In FIG. 5 shows an embodiment of a groove in pos 9 in a V-shaped plan.

The device can also perform the function of a sliding bearing, for example, when creating a parallelogram-type mechanism.

Also, parts of the housing of the device can work independently of each other to connect different bodies of revolution, through the use of the protrusion of one part, or deepening into another, forming a T-shaped connection.

Application to the surface of the groove of a mouse tooth is possible.

In FIG. 8 shows an embodiment of the device in which the pipes to be connected differ in geometry and dimensions. In the second part of the device casing pos. 2, a profile pipe is located, and in the first, a cylindrical body of revolution. It is possible to fix profile pipes in both parts of the device.

The technical result is achieved.

The most important indicators of the technical characteristics of the proposed device for connecting pipes are simplicity of design, reliability of fastening and a large number of options for tap sizes of connected pipes.

Recommended diameters of connected pipes are in the range from 10 to 50 mm. It is allowed to use large diameters, but in such cases it is recommended to conduct a strength analysis of the structure as a whole.

Taking into account the level of technology, the developer of this technical solution took into account that the concept laid down in the design of the claimed device can be applied both in the field of sports and / or adaptive physical education, medicine, and other industries.

Claims (6)

1. A device for connecting two pipes in equipment for the rehabilitation of patients, comprising a housing in which there are cuts directed from its end surfaces towards the holes for the pipes and reaching the holes for the connected pipe, made in such a way that there is a longitudinal axis in the plane of the cut holes for fixed pipes, at the ends of the device there are holes for clamping fasteners and clamping fasteners themselves, which allow the device body to be deformed, while the surface of the holes of the device for connecting The pipes are made with the possibility of crimping the outer surfaces of the pipes themselves connected by the device, and there are also holes with fixed fixing elements located at different ends of the device passing through the device body and the area of the holes for the pipes, while the locking elements are made to pass through the case the device and the holes in the fixed pipes, characterized in that the housing of the device consists of two parts, each of which is designed for one fixed pipe, with in this case, a recess is made in one part of the housing, and there is also a hole for the retainer and the retainer itself, the axis of which is in the middle part of the length of the depression and which is perpendicular to the axis of the recess itself, and in the second part of the housing there is a protrusion made in the form of a body of revolution, on the surface of which there is a groove containing a hole for the retainer, the axis of which is perpendicular to the axis of rotation of the protrusion itself and which is located in the recess of the other part of the device, while the protrusion and the recess are rotatable I of both parts of the device relative to their common longitudinal axis, which is perpendicular to the longitudinal axes of the connected pipes. 2. The device according to claim 1, characterized in that the hole in the groove of the protrusion for the latch is made through. 3. The device according to claim 1, characterized in that the hole in the groove for the retainer and the retainer itself are threaded. 4. The device according to claim 1, characterized in that the number of holes for the clips located on the groove is more than one. 5. The device according to p. 1, characterized in that the geometric dimensions and shapes of the connected two pipes are made arbitrary. 6. The device according to claim 1, characterized in that the surface of the protrusion of the groove is made with a mouse tooth applied to it.

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