Control valves and door drives for door drives

Abstract

The invention relates to a regulating valve (1) for a door drive (2), wherein the regulating valve (1) has an axis of rotation (3), wherein the regulating valve (1) has at least two ends (8), wherein the regulating valve (1) has at least two sealing sections (12), wherein the regulating valve (1) has a regulating section (4), wherein the regulating section (4) is arranged between the sealing sections (12). According to the invention, a regulating valve (1) for a door drive (2) which can be manufactured particularly easily is achieved in that at least one of the sealing sections (12) is formed by at least one radial thickening (5), wherein the regulating section (4) is formed by at least one radial tapering (6) of the regulating valve (1).

Description

Technical Field

[0001] The invention relates to a regulating valve for a door drive, wherein the regulating valve has a rotation axis, wherein the regulating valve has at least two ends, wherein the regulating valve has at least two sealing sections, wherein the regulating valve has a regulating section, wherein the regulating section is arranged between the sealing sections. The invention also relates to a door drive. Background Art

[0002] EP 3103949 B1 discloses a door drive having a housing and at least one regulating valve for adjustably regulating a fluid flow in the door drive. The disadvantage of this regulating valve is that it has many components and requires complex processing steps during production. As a result, the regulating valve is neither cheap nor easy to manufacture. Summary of the invention

[0003] The object of the present invention is therefore to provide a regulating valve for a door drive which can be manufactured particularly simply. The object of the present invention is also to provide a regulating valve for a door drive which can be manufactured at low cost. The object of the present invention is also to provide a door drive which can be manufactured particularly simply. The object of the present invention is also to provide a door drive which can be manufactured particularly at low cost.

[0004] Based on the initially described regulating valve for door drive, the previously introduced and indicated objects are achieved in that at least one of the sealing sections is formed by at least one radial thickening, wherein the regulating section is formed by at least one radial tapering of the regulating valve. Advantageous developments of the invention are described herein. A radial thickening means in this case that the diameter of the regulating valve at this position is larger than the diameter of the immediately adjacent region as viewed along the axis of rotation. A radial tapering means in this case that the diameter of the regulating valve at this position is smaller than the diameter of the immediately adjacent region as viewed along the axis of rotation.

[0005] Furthermore, it can be provided that the radial thickening or at least one of the radial thickenings is formed integrally with the regulating valve, thereby achieving a simple and cost-effective production of the regulating valve.

[0006] Furthermore, it can be provided that the taper or at least one of the tapers has a cross section which is symmetrical in the direction of the axis of rotation. This makes it possible to manufacture the regulating valve in a simple and cost-effective manner.

[0007] Furthermore, it can be provided that the regulating valve has at least one activation element. This makes it possible for the regulating valve to be easily operable, for example by means of a tool or by hand.

[0008] Furthermore, it can be provided that an engagement element or at least one of the engagement elements is arranged at one of the ends. This achieves good accessibility to the engagement element.

[0009] Furthermore, it can be provided that each end has at least one engagement portion, thereby achieving that the regulating valve can be actuated from both ends.

[0010] Furthermore, it can be provided that the regulating valve is rotatable about the axis of rotation by means of the one or at least one of the engagement parts.

[0011] Furthermore, it can be provided that the regulating valve has at least one thread.

[0012] Furthermore, it can be provided that the thread or at least one of the threads is designed coaxially with respect to the axis of rotation.

[0013] Furthermore, it can be provided that the thread or at least one of the threads is arranged at one of the ends.

[0014] Furthermore, it can be provided that at least one end has a thread and an engagement portion.

[0015] Furthermore, it can be provided that the regulating valve has a guide section at one of the ends.

[0016] Furthermore, it can be provided that the guide section has a smaller diameter than the other end.

[0017] Furthermore, it can be provided that the radial thickening or at least one of the radial thickenings extends rotationally symmetrically about the axis of rotation, thereby achieving that the thickening reliably fulfills its sealing function.

[0018] Furthermore, it can be provided that the taper or at least one of the tapers extends rotationally symmetrically about the axis of rotation, thereby achieving that the regulating effect of the taper is independent of a pure rotation of the regulating valve about its axis of rotation.

[0019] Furthermore, it can be provided that at least one of the sealing sections is formed by a plurality of radial thickenings, wherein the thickenings are spaced apart from one another along the axis of rotation. This enables the thickenings to fulfill their sealing function particularly reliably.

[0020] Furthermore, it can be provided that the regulating valve can be screwed into the door drive by means of a thread or at least one of the threads. This enables the regulating valve to be safely adjusted and guided in the door drive.

[0021] Furthermore, it can be provided that the regulating valve is formed from plastic, thereby achieving a simple and cost-effective production of the regulating valve.

[0022] Furthermore, it can be provided that the plastic is polyamide. This allows the regulating valve to be manufactured simply and cost-effectively.

[0023] Furthermore, it can be provided that the plastic contains fibers.

[0024] Furthermore, it can be provided that the fibers comprise glass fibers.

[0025] Furthermore, it can be provided that the fibers account for 5 to 50% by mass, preferably 20 to 40% by mass, particularly preferably 25 to 35% by mass of the plastic.

[0026] Furthermore, it can be provided that the regulating valve has at least one circumferential sealing ring groove.

[0027] Furthermore, it can be provided that the regulating valve has at least one sealing ring.

[0028] Furthermore, it can be provided that the sealing ring or at least one of the sealing rings is arranged in a sealing ring groove or in one of the sealing ring grooves.

[0029] Furthermore, it can be provided that the sealing ring groove or at least one of the sealing ring grooves is arranged between one end and the nearest sealing section.

[0030] Furthermore, it can be provided that the regulating valve has at least two sealing rings, at least one of which has a smaller diameter than the other sealing ring. This ensures that the sealing ring with the smaller diameter is protected from damage when the regulating valve is inserted into the door drive, in particular via the receiving thread of the regulating valve receptacle. In this case, the diameter of the sealing ring refers to the outer diameter of the sealing ring.

[0031] Furthermore, it can be provided that the regulating valve is an injection-molded part, thereby achieving a simple and cost-effective production of the regulating valve.

[0032] Furthermore, it can be provided that the regulating valve is a rotating part, thereby achieving a simple and cost-effective production of the regulating valve.

[0033] Based on the door drive described at the outset, the object introduced and indicated above is achieved in that the door drive has a control valve as described above. This makes it possible to manufacture the door drive particularly simply. Advantageous developments of the invention are described in this context.

[0034] Furthermore, it can be provided that the door drive has at least one regulating valve receptacle, wherein the regulating valve or at least one of the regulating valves is accommodated in the regulating valve receptacle of the door drive. This enables the regulating valve to be safely accommodated in the door drive.

[0035] Furthermore, it can be provided that at least one of the sealing sections has a larger diameter than the associated regulating valve receptacle. This ensures that the sealing section or at least one of the sealing sections can reliably fulfill its sealing function in the respectively associated regulating valve receptacle. This occurs in that the sealing section or at least one of the sealing sections deforms elastically, i.e. reversibly. As a result, the sealing section bears against the surface of the regulating valve receptacle facing the regulating valve.

[0036] Furthermore, it can be provided that the door drive has a longitudinal axis, wherein the longitudinal axis is defined by the direction of movement of a piston arranged in the door drive or by the direction of movement of a spring arranged in the door drive, wherein the regulating valve or at least one of the regulating valves is arranged perpendicular to the longitudinal axis. This makes it possible to manufacture the door drive particularly easily.

[0037] Furthermore, it can be provided that at least one regulating valve receptacle has a guide section receptacle, wherein the guide section receptacle receives a guide section of the associated regulating valve. This allows the door drive to be manufactured particularly simply. This also allows the associated regulating valve to be guided securely in the regulating valve receptacle.

[0038] Furthermore, it can be provided that the regulating valve receptacle is formed by a stepped bore, wherein the stepped bore has at least two sections in the longitudinal direction, wherein one of the sections forms the guide section receptacle. This makes it possible to manufacture the door drive particularly easily.

[0039] Furthermore, it can be provided that the section with the smallest diameter forms the guide section receptacle.

[0040] Furthermore, it can be provided that the door drive has an output shaft, wherein the output shaft is mounted in the door drive, wherein the output shaft is rotatable about an output axis, wherein the output shaft has at least one interface, wherein the interface or at least one of the interfaces serves for connecting a connecting rod.

[0041] Furthermore, it can be provided that the regulating valve or at least one of the regulating valves is arranged perpendicular to the output axis. This achieves that the regulating valve or at least one of the regulating valves is easily accessible in the position installed on the door.

[0042] Furthermore, it can be provided that the regulating valve or at least one of the regulating valves connects at least two hydraulic channels in the door drive. This makes it possible to manufacture the door drive particularly easily.

[0043] Furthermore, it can be provided that the regulating valve or at least one of the regulating valves is used to control the hydraulic flow between the hydraulic channels. This makes it possible to control the hydraulic flow particularly reliably.

[0044] Furthermore, it can be provided that the hydraulic channel extends perpendicularly to the axis of rotation. This makes it possible to manufacture the door drive particularly simply.

[0045] Furthermore, it can be provided that the hydraulic channel runs coaxially. This makes it possible to manufacture the door drive particularly simply.

[0046] Furthermore, it can be provided that at least one of the sealing sections is made of a softer material than the respectively associated regulating valve receptacle, thereby achieving that the sealing section or at least one of the sealing sections in the respectively associated regulating valve receptacle is adapted to the inner diameter of the regulating valve receptacle by elastic deformation.

[0047] Furthermore, it can be provided that the regulating valve receptacle or at least one of the regulating valve receptacles has at least one receiving thread, wherein the receiving thread or at least one of the receiving threads interacts with an associated thread of the associated regulating valve, thereby achieving that the regulating valve can be moved along its axis of rotation.

[0048] Furthermore, it can be provided that the door drive has a connecting rod, wherein the connecting rod is connected to an output shaft of the door drive, wherein the connecting rod serves for the transmission of force between the door drive and the door leaf or door frame.

[0049] Furthermore, it can be provided that the connecting rod is a scissor-type connecting rod.

[0050] Furthermore, it can be provided that the connecting rod is a sliding connecting rod.

[0051] Furthermore, it can be provided that the output shaft protrudes from the door drive on two opposite sides, wherein the output shaft has interfaces on both sides. Depending on the installation direction of the door drive, for example, one of the two interfaces can be used and connected to the connecting rod accordingly. The other interface remains unused. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The present invention is described in detail below based on embodiments. In the accompanying drawings, technical features with the same functions have the same reference numerals. The accompanying drawings show:

[0053] Figure 1a and 1b A regulating valve 1 according to the invention for a door drive 2 is shown, and

[0054] Figure 2 A door drive 2 according to the invention is shown. DETAILED DESCRIPTION

[0055] Figure 1a A regulating valve 1 for a door drive 2 according to the invention is shown, wherein the regulating valve 1 has an axis of rotation 3 , wherein the regulating valve 1 has at least two ends 8 , wherein the regulating valve 1 has at least two sealing sections 12 , wherein the regulating valve 1 has a regulating section 4 , wherein the regulating section 4 is arranged between the sealing sections 12 .

[0056] The two sealing sections 12 are each formed by three radial thickenings 5. The radial thickenings 5 ​​are spaced apart from one another along the axis of rotation 3. The regulating section 4 is formed by a radial tapering 6. The radial thickening 5 is formed integrally with the regulating valve 1. The radial thickening 5 extends rotationally symmetrically around the axis of rotation 3. The tapering 6 also extends rotationally symmetrically around the axis of rotation 3. The tapering 6 has a symmetrical cross section in the direction of the axis of rotation 3.

[0057] The regulating valve 1 has two active parts 7. The regulating valve 1 has two end parts 8. One active part 7 is arranged at each end part 8. Therefore, each end part 8 has one active part 7. Figure 1b Shown in Figure 1a The three-dimensional view of the regulating valve 1 makes it possible to more clearly see the action part 7. The action part 7 is formed by a hexagon socket screw.

[0058] The regulating valve 1 has a thread 9. The thread 9 is arranged on the right side of the two ends 8 of the regulating valve 1. Therefore, the right side of the two ends 8 has both the active part 7 and the thread 9. The thread 9 is designed coaxially with the rotation axis 3.

[0059] The regulating valve 1 has a guide section 10 . The guide section 10 is arranged on the left side of the two ends 8 . The guide section 10 has a smaller diameter than on the right side of the two ends 8 .

[0060] The regulating valve 1 has two circumferential sealing ring grooves 11. The sealing ring grooves 11 are used to accommodate sealing rings (not shown). The sealing ring grooves 11 are each arranged between one of the ends 8 and the closest sealing section 12.

[0061] The regulating valve 1 can be screwed into a regulating valve receptacle 14 of a door drive 2 by means of a thread 9 (see Figure 2 ). For this purpose, the regulating valve receiving portion 14 has a receiving thread. The regulating valve 1 can be rotated about its rotation axis 3 via the active portion 7. When the regulating valve 1 is rotated in the regulating valve receiving portion 14, the regulating valve 1 moves along its rotation axis 3. In this case, the regulating valve 1 also moves relative to the hydraulic channel provided in the door drive 2. Depending on the position of the regulating valve 1 in the door drive 2, the hydraulic fluid can flow along the tapered portion 6 of the regulating valve 1 or be blocked.

[0062] Figure 2 The door drive 2 according to the invention is shown. The door drive 2 has a regulating valve receptacle 14. The regulating valve 1 according to the invention is arranged in the regulating valve receptacle 14. Figure 2 One end 8 of the regulating valve 1 can be seen in the figure. The end 8 of the regulating valve 1 has an action portion 7. The action portion 7 is formed by a hexagon socket screw.

[0063] The door drive 2 has a longitudinal axis 13. The door drive 2 has an output shaft 18. The output shaft 18 is supported in the door drive 2. The output shaft 18 extends perpendicularly to the longitudinal axis 13. The output shaft 18 can rotate about an output axis 19. The output axis 19 extends perpendicularly to the longitudinal axis 13. The output shaft 18 extends from the door drive 1 at the upper side and the lower side of the door drive 1. The output shaft 18 has interfaces 20 at its two ends. Only the upper interface 20 can be seen in the figure. The interface 20 is used to connect a connecting rod not shown. The control valve 1 is arranged perpendicular to the output axis 19.

[0064] Reference numerals list

[0065] 1 Control valve

[0066] 2 door drivers

[0067] 3 Axis of rotation

[0068] 4 Adjustment section

[0069] 5 Thickening part

[0070] 6 Taper

[0071] 7 Action part

[0072] 8 ends

[0073] 9 Thread

[0074] 10 Guide section

[0075] 11 Sealing ring groove

[0076] 12 Sealing section

[0077] 13. Longitudinal axis

[0078] 14 Control valve housing

[0079] 18 Output shaft

[0080] 19 Output axis

[0081] 20 Interface

Claims

1. A regulating valve (1) for a door drive (2), wherein the regulating valve (1) has an axis of rotation (3), wherein the regulating valve (1) has at least two ends (8), wherein the regulating valve (1) has at least two sealing sections (12), wherein the regulating valve (1) has a regulating section (4), wherein the regulating section (4) is arranged between the sealing sections (12), characterized in that At least one of the sealing sections (12) is formed by at least one radial thickening (5), wherein the regulating section (4) is formed by at least one radial taper (6) of the regulating valve (1), wherein the radial taper (6) extends rotationally symmetrically about the rotation axis (3).

2. The regulating valve (1) for a door drive (2) according to claim 1, characterized in that The radial thickening (5) or at least one of the radial thickenings (5) is formed integrally with the regulating valve (1).

3. The regulating valve (1) for a door drive (2) according to claim 1 or 2, characterized in that: The regulating valve (1) has at least one acting portion (7).

4. The regulating valve (1) for a door drive (2) according to claim 3, characterized in that Each end portion (8) has at least one active portion (7).

5. The regulating valve (1) for a door drive (2) according to claim 1 or 2, characterized in that: At least one of the sealing sections (12) is formed by a plurality of radial thickenings (5), wherein the thickenings (5) are spaced apart from one another along the rotation axis (3).

6. The regulating valve (1) for a door drive (2) according to claim 1 or 2, characterized in that: The regulating valve (1) is made of plastic.

7. The regulating valve (1) for a door drive (2) according to claim 6, characterized in that The regulating valve (1) is an injection-molded part.

8. A door driver (2), characterized in that: The door drive (2) comprises a regulating valve (1) according to any one of claims 1 to 7.

9. Door drive (2) according to claim 8, characterized in that The door drive (2) has at least one regulating valve receptacle (14), wherein the regulating valve (1) or at least one of the regulating valves (1) is accommodated in the regulating valve receptacle (14) of the door drive (2).

10. Door drive (2) according to claim 9, characterized in that At least one of the sealing sections (12) has a larger diameter than an associated regulating valve receptacle (14).

11. The door drive (2) according to any one of claims 8 to 10, characterized in that The door drive (2) has an output shaft (18). wherein the output shaft (18) is supported in the door drive (2), The output shaft (18) is rotatable about an output axis (19), The output shaft (18) has at least one interface (20), wherein the interface (20) or at least one of the interfaces is used for connecting a connecting rod.

12. Door drive (2) according to claim 11, characterized in that The regulating valve (1) or at least one of the regulating valves (1) is arranged perpendicular to the output axis (19).

13. The door drive (2) according to any one of claims 8 to 10, characterized in that The regulating valve (1) or at least one of the regulating valves (1) connects at least two hydraulic channels in the door drive (2).

14. Door drive (2) according to claim 13, characterized in that The regulating valve (1) or at least one of the regulating valves (1) is used to control the hydraulic flow between the hydraulic channels.

15. Door drive (2) according to claim 9 or 10, characterized in that At least one of the sealing sections (12) is made of a softer material than the respectively associated regulating valve receptacle (14).

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