Opening and closing double-return rectangular core positioner

Abstract

The utility model provides an opening and closing double-return rectangular core positioner, which belongs to the field of door opening and closing auxiliary devices, and comprises a positioner seat and a positioner body, and further comprises a positioner cover, a rectangular valve core, a series screw, an air cylinder sliding sleeve, an energy storage air cylinder and a positioner body end cover, the positioner body is provided with a positioner body longitudinal hole, a positioner body limiting groove and a positioner body transverse hole, the rectangular valve element is provided with a second penetrating hole, and the series screws sequentially penetrate through the first penetrating hole and the second penetrating hole in the extending direction of the positioner body longitudinal hole and then are screwed and fixed to the positioner cover. The two inflator sliding sleeves and the two energy storage inflators are symmetrically arranged in the device body transverse hole, the two device body end covers are installed at the two ends of the device body transverse hole respectively, and the device body limiting groove is provided with a limiting check block used for limiting rotation of the positioner base. The energy storage air cylinder is used for positioning and assisting in door opening and closing, hydraulic oil is not used, the situation of hydraulic oil leakage is avoided, noise is avoided, and the service life is long.

Description

Technical Field

[0001] The utility model belongs to the field of door opening and closing auxiliary devices, in particular to an opening and closing double-returning moment core positioner. Background Art

[0002] The existing door closers on the market are mainly used for swing doors whose opening and closing movements are rotational movements, and most of them are composed of a pull arm, an additional force component on both sides thereof and a buffer. Such door closers have a relatively complex structure, and the assembly is time-consuming and labor-intensive. The overall size of the buffer is relatively large, and the buffering effect is not ideal. There is a lot of noise when closing the door. Therefore, they are generally used on larger door panels or door frames, which are difficult for the elderly and children to push. The scope of use is limited, and they cannot be used at home or in the bedroom.

[0003] In addition, most existing door closers use compression springs or hydraulic mechanisms. The compression spring mechanism needs to continuously provide spring thrust, and the frequent expansion and contraction of the spring easily causes fatigue, resulting in an unsatisfactory service life. In addition, when a larger thrust is sometimes required in an application, the compression spring often cannot meet the use requirements.

[0004] A 360-degree rotatable hydraulic door closer is currently disclosed (patent application number: CN202010904485.2), which includes a housing, a transmission shaft, a piston, a roller assembly and a valve assembly, the transmission shaft is provided with a cam portion, the roller assembly is against the cam portion, the roller assembly is rotatably mounted on the piston, the piston is installed in the housing, and a first oil channel and a second oil channel are separated in the housing, a third oil channel connected to the second oil channel is provided in the piston, and the valve assembly is used to control the connectivity between the first oil channel and the third oil channel.

[0005] The disclosed door closer solution adopts a hydraulic mechanism to achieve 360-degree rotation. Although the use of the hydraulic mechanism can overcome the disadvantages of the compression spring, the hydraulic mechanism has high manufacturing precision requirements, which leads to increased manufacturing costs. Moreover, after the hydraulic mechanism is used for a long time, it will wear out and cause hydraulic oil leakage, generating loud noise, which not only pollutes the use environment, but also causes the buffer to fail.

[0006] Especially in some super large exhibitions and other occasions, a whole row of central axis doors are needed to separate large spaces or allow unobstructed traffic between large spaces. In this case, it is most ideal to use a whole row of central axis doors, especially central axis doors with dual automatic locking positions of fully open and fully closed. Utility Model Content

[0007] The present application provides an opening and closing double return torque core positioner, which aims to solve the problems of existing compression spring type door closers having unsatisfactory service life, inability to provide large thrust, high production cost of hydraulic mechanism type door closers, wear and tear caused by long-term use, hydraulic oil leakage, large noise, and buffer failure.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A double-return torque core positioner for opening and closing, comprising a positioner seat and a positioner body, and also comprising a positioner cover, a rectangular valve core, a series screw, a cylinder sleeve, an energy storage cylinder and an end cover of the body. The positioner seat is provided with a first through hole, the positioner body is provided with a body longitudinal hole, a body limiting groove and a body transverse hole, the rectangular valve core is provided with a second through hole, the rectangular valve core is located at the intersection of the body longitudinal hole and the body transverse hole, the series screw passes through the first through hole and the second through hole in sequence along the extension direction of the body longitudinal hole and is tightened and fixed with the positioner cover, the cylinder sleeve is sleeved on the outside of the energy storage cylinder, the number of the cylinder sleeve and the energy storage cylinder is two groups, the two groups of cylinder sleeves and the energy storage cylinder are symmetrically arranged in the transverse hole of the body with the rectangular valve core as the center, the number of the body end covers is two, the two body end covers are respectively installed at the two ends of the body transverse hole, the body end cover is against the bottom of the energy storage cylinder, and the body limiting groove is installed with a limit block for limiting the rotation of the positioner seat.

[0010] Preferably, the upper and lower ends of the rectangular valve core are respectively provided with a first valve core force transmission tooth and a second valve core force transmission tooth, the locator seat is provided with a seat tooth groove, the locator cover is provided with a cover tooth groove, the cover tooth groove is engaged with the first valve core force transmission tooth, and the second valve core force transmission tooth is engaged with the seat tooth groove.

[0011] Preferably, wide-side closing door positioning recessed holes and narrow-side opening door positioning recessed holes are provided at intervals on the side of the valve core, sleeve concave balls and sleeve inner holes are provided at both ends of the air cylinder sleeve respectively, the sleeve inner hole is matched with the clearance of the energy storage air cylinder, the sleeve concave balls are matched with sleeve steel balls, and the energy storage air cylinder pushes the air cylinder sleeve to move so that the sleeve steel balls are offset against the wide-side closing door positioning recessed holes or the narrow-side opening door positioning recessed holes.

[0012] Preferably, the limit stopper is provided with a low position without stopper and a high position stopper, and the positioner seat is provided with a normally open stopper, and the normally open stopper is adjacent to the low position without stopper and / or the high position stopper.

[0013] Preferably, there are two limit stops, which are respectively installed on both sides of the longitudinal hole of the device body.

[0014] Preferably, a positioner cover corner liner is installed between the positioner cover and the rectangular valve core, and a positioner seat corner liner is installed between the rectangular valve core and the positioner seat.

[0015] Preferably, the positioner seat is provided with a seat screw hole and a seat slot hole for fixing to the rotating door frame, and the seat screw hole is located inside the seat slot hole.

[0016] Preferably, the positioner body is provided with an end plate slot hole and an end plate screw hole for fixing to the revolving door, and the end plate screw hole is located inside the end plate slot hole.

[0017] Preferably, the end cover of the body is threadedly connected to the opening of the transverse hole of the body.

[0018] The utility model has the following beneficial effects:

[0019] (1) After the core positioner is installed on the central axis door, the central axis door is gently pushed, and the head of the energy storage cylinder is compressed into the cylinder body. The energy storage cylinder is thus charged, and when the opening angle of the central axis door is less than 70 degrees, the central axis door can be automatically returned to close. The energy storage cylinder can provide a sufficiently large thrust, and will not fatigue due to frequent use during use. It has a long service life and is better adapted to the isolation of large venues;

[0020] (2) When the opening angle of the central axis door is greater than 75 degrees, the steel ball of the sliding sleeve will slide into the narrow door opening positioning concave hole for positioning, and the central axis door will automatically position in the fully open state to better adapt to the smooth flow of large venues;

[0021] (3) The main body of the core positioner is made of aluminum material, which has low production cost and excellent promotion conditions;

[0022] (4) The corner linings of the cover and the base are made of composite polytetrafluoroethylene, which achieves oil-free lubrication. During the rotation of the revolving door, the energy storage cylinder is used to position and assist in opening and closing the door. There is no use of hydraulic oil, no leakage of hydraulic oil, no noise, and a better buffering effect.

[0023] (5) Adding a limit stopper can control the revolving door to rotate 360 ​​degrees without obstruction relative to the door frame, or to rotate 90 degrees forward and backward relative to the door frame, or to control the revolving door to be always open and unable to rotate relative to the door frame;

[0024] (6) The tooth grooves of the seat and the cover are engaged with the valve core force transmission teeth in a trapezoidal shape, which enhances the transmission torque and facilitates assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the rectangular core positioner in the utility model;

[0026] Figure 2 It is an exploded diagram of the core positioner in the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the rectangular valve core in the utility model;

[0028] Figure 4 It is a structural schematic diagram of the positioner seat in the utility model;

[0029] Figure 5 It is a structural schematic diagram of the positioner body in the utility model;

[0030] Figure 6 It is a cross-sectional view of the air cylinder sliding sleeve of the utility model;

[0031] Figure 7 It is a structural schematic diagram of the energy storage gas cylinder in the utility model;

[0032] Figure 8 This is a schematic diagram of the structure of the limit stopper in the utility model;

[0033] Fig. 9 It is a cross-sectional view of the rectangular core positioner in the utility model;

[0034] Fig.10 It is a structural schematic diagram of the rotation process of the matrix core positioner in the utility model.

[0035] Among them, 1-positioner seat, 101-seat screw hole, 102-seat tooth groove, 103-first perforation, 104-normally open stop convex, 105-seat slot, 2-positioner body, 21-end plate slot, 22-end plate screw hole, 23-body longitudinal hole, 24-body limit groove, 25-body transverse hole, 3-positioner cover, 31-cover tooth groove, 4-cover corner lining, 5-rectangular valve core, 51 -second perforation, 52-narrow side door opening positioning recessed hole, 53-first valve core force transmission tooth, 54-wide side door closing positioning recessed hole, 55-second valve core force transmission tooth, 6-limit stopper, 61-low position no stopper, 62-high position stopper, 7-seat angle lining, 8-series screws, 9-cylinder sleeve, 91-sleeve concave ball, 92-sleeve inner hole, 10-energy storage cylinder, 11-body end cover, 12-sleeve steel ball. DETAILED DESCRIPTION

[0036] Example 1

[0037] like Figure 1-10 As shown, an open and close double return torque core positioner includes a positioner seat 1 and a positioner body 2, and also includes a positioner cover 3, a rectangular valve core 5, a series screw 8, a cylinder sleeve 9, an energy storage cylinder 10 and a body end cover 11. The positioner seat 1 is provided with a first through hole 103, the positioner body 2 is provided with a body longitudinal hole 23, a body limiting groove 24 and a body transverse hole 25, the rectangular valve core 5 is provided with a second through hole 51, the rectangular valve core 5 is located at the intersection of the body longitudinal hole 23 and the body transverse hole 25, and the series screw 8 passes through the first through hole 103 in sequence along the extension direction of the body longitudinal hole 23. The perforation 103 and the second perforation 51 are then tightened and fixed with the locator cover 3, the cylinder sleeve 9 is sleeved on the outside of the energy storage cylinder 10, the number of the cylinder sleeve 9 and the energy storage cylinder 10 is two groups, the two groups of cylinder sleeves 9 and the energy storage cylinder 10 are symmetrically arranged in the body transverse hole 25 with the rectangular valve core 5 as the center, the number of the body end covers 11 is two, the two body end covers 11 are respectively installed at both ends of the body transverse hole 25, the body end covers 11 are against the bottom of the energy storage cylinder 10, and the body limit groove 24 is installed with a limit block 6 for limiting the rotation of the locator seat 1.

[0038] The positioner seat 1 is used to be fixed to the door frame of the revolving door, and the positioner body 2 is used to be fixed to the revolving door, so that the opening and closing of the revolving door can be realized by the core positioner.

[0039] There are two limit blocks 6, which are respectively installed on both sides of the longitudinal hole 23 of the device body;

[0040] The two limit blocks 6 are respectively installed in the limit grooves 24 of the device body on both sides of the device body longitudinal hole 23, and are tightened and fixed by bolts passing through the screw holes on the two structures.

[0041] When the two high-position stoppers 62 are adjacent to the normally-open stop protrusions 104 , the positioner body 2 cannot rotate and is in the normally-open state.

[0042] Normally open stop 104 only Figure 4 The structure shown in FIG. 1 is not present on the other side, and the normally open stop protrusion 104 is blocked by the high-position stoppers 62 on both sides and cannot rotate, so that the revolving door is in the normally open state.

[0043] like Figure 3 As shown, the upper and lower ends of the rectangular valve core 5 are respectively provided with a first valve core force transmission tooth 53 and a second valve core force transmission tooth 55, the positioner seat 1 is provided with a seat tooth groove 102, and the positioner cover 3 is provided with a cover tooth groove 31, the cover tooth groove 31 is engaged with the first valve core force transmission tooth 53, and the second valve core force transmission tooth 55 is engaged with the seat tooth groove 102.

[0044] like Figure 2 As shown, a cover angle liner 4 is installed between the positioner cover 3 and the rectangular valve core 5, and a seat angle liner 7 is installed between the rectangular valve core 5 and the positioner seat 1. The cover angle liner 4 and the seat angle liner 7 are made of composite polytetrafluoroethylene to achieve oil-free lubrication.

[0045] After being meshed with each other, they are fixed into an integrated structure by the series screws 8, thereby achieving synchronous rotation.

[0046] The side of the valve core 5 is provided with a wide side closing door positioning recessed hole 54 and a narrow side opening door positioning recessed hole 52 at intervals. Figure 6 As shown, sleeve concave balls 91 and sleeve inner holes 92 are respectively provided at both ends of the air cylinder sleeve 9. The sleeve inner hole 92 is clearance-matched with the energy storage air cylinder 10. The sleeve concave balls 91 are matched with sleeve steel balls 12. The energy storage air cylinder 10 pushes the air cylinder sleeve 9 to move so that the sleeve steel balls 12 are against the wide-side closed-door positioning concave holes 54 or the narrow-side open-door positioning concave holes 52.

[0047] When the revolving door is pushed, the rectangular valve core 5 squeezes the sliding sleeve steel ball 12 out of the concave hole, thereby pushing the cylinder sliding sleeve 9 to move, so that the head of the energy storage cylinder 10 is compressed into the cylinder body, and the energy storage cylinder 10 is thus charged. When the opening angle of the revolving door is less than 70 degrees, the energy storage cylinder 10 can automatically return to close the revolving door under the action of the energy storage cylinder 10 after charging; when the opening angle of the revolving door is greater than 75 degrees, the sliding sleeve steel ball 12 will slide from the wide face closing door positioning concave hole 54 along the side into the narrow face opening door positioning concave hole 52 for positioning, so as to achieve the effect of fully opening the revolving door. Through the energy storage cylinder 10 and the corresponding structure, a better door opening and closing effect is achieved, with buffering and automatic functions.

[0048] like Figure 8 As shown, the limit stopper 6 is provided with a low position unblocked 61 and a high position stopper 62 , and the positioner seat 1 is provided with a normally open stopper 104 , which is adjacent to the low position unblocked 61 and / or the high position stopper 62 .

[0049] like Figure 4 As shown, the positioner seat 1 is provided with a seat screw hole 101 and a seat slot hole 105 for fixing to the rotating door frame, and the seat screw hole 101 is located inside the seat slot hole 105 .

[0050] The locator seat 1 is fixed to the door frame of the revolving door by using self-tapping screws passing through the seat slot hole 105, or by using cylindrical screws to reversely pass through the revolving door frame and then screw-fasten with the seat screw hole 101 to fasten the locator seat 1 to the door frame.

[0051] like Figure 5 As shown, the positioner body 2 is provided with an end plate slot hole 21 and an end plate screw hole 22 for fixing with the revolving door, and the end plate screw hole 22 is located inside the end plate slot hole 21 .

[0052] The positioner body 2 is fixed to the revolving door by using self-tapping screws passing through the end plate slots 21; or the positioner body 2 is fixed to the revolving door by using cylindrical screws passing through the revolving door in the reverse direction and then screw-fastening with the end plate screw holes 22.

[0053] The body end cover 11 is threadedly connected to the opening of the body transverse hole 25 .

[0054] The tail of the end cover 11 of the device body is provided with a thread, which is threadedly connected to the hole mouth of the transverse hole 25 of the device body and tightened and fixed. The head of the end cover 11 of the device body is provided with an end cover blocking hole, and the end cover blocking hole is matched with the tail clearance of the energy storage gas cylinder 10, so that the head of the energy storage gas cylinder 10 can be extended and retracted in the cylinder body, so as to drive the gas cylinder sliding sleeve 9 to slide in the transverse hole 25 of the device body.

[0055] Example 2

[0056] The difference between this embodiment and embodiment 1 is that:

[0057] When the two low-position unblocked parts 61 are adjacent to the normally open stop protrusion 104, the positioner body 2 can rotate 360 ​​degrees without hindrance.

[0058] The two limit blocks 6 are installed into the two limit grooves 24 of the body with the side of the low-position unblocked 61 facing the direction of the normally open stop 104. At this time, the two high-position blocks 62 are away from the normally open stop 104, so that the locator body 2 can rotate 360 ​​degrees without any obstacles during the rotation process. Fig.10 shown.

[0059] Example 3

[0060] The difference between this embodiment and embodiment 1 is that:

[0061] When a low-position unblocked block 61 and a high-position block 62 are both adjacent to the normally open stop 104, the positioner body 2 rotates 90 degrees forward and backward.

[0062] Install one limit stop block 6 into the limit groove 24 of the device body against the side of the low-position unblocked 61 facing the direction of the normally open stop protrusion 104, and install the other limit stop block 6 into the limit groove 24 of the device body against the side of the high-position stop block 62 facing the direction of the normally open stop protrusion 104. At this time, the normally open stop protrusion 104 can only rotate within 90 degrees on one side, and the other side cannot rotate due to the obstruction of the high-position stop block 62.

[0063] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. An open-close double-return core positioner, comprising a positioner seat (1) and a positioner body (2), characterized in that: The invention also comprises a positioner cover (3), a rectangular valve core (5), a series screw (8), a cylinder sleeve (9), an energy storage cylinder (10) and a body end cover (11); the positioner seat (1) is provided with a first through hole (103); the positioner body (2) is provided with a body longitudinal hole (23), a body limiting groove (24) and a body transverse hole (25); the rectangular valve core (5) is provided with a second through hole (51); the rectangular valve core (5) is located at the intersection of the body longitudinal hole (23) and the body transverse hole (25); the series screw (8) passes through the first through hole (103) and the second through hole (51) in sequence along the extension direction of the body longitudinal hole (23). ) and then tightened and fixed with the positioner cover (3), the cylinder sleeve (9) is sleeved on the outside of the energy storage cylinder (10), the number of the cylinder sleeve (9) and the energy storage cylinder (10) is two groups, the two groups of cylinder sleeves (9) and the energy storage cylinder (10) are symmetrically arranged in the body transverse hole (25) with the rectangular valve core (5) as the center, the number of the body end covers (11) is two, the two body end covers (11) are respectively installed at the two ends of the body transverse hole (25), the body end covers (11) are against the bottom of the energy storage cylinder (10), and the body limit groove (24) is installed with a limit block (6) for limiting the rotation of the positioner seat (1).

2. The open and close double return core positioner according to claim 1, characterized in that: The upper and lower ends of the rectangular valve core (5) are respectively provided with a first valve core force transmission tooth (53) and a second valve core force transmission tooth (55); the positioner seat (1) is provided with a seat tooth groove (102); the positioner cover (3) is provided with a cover tooth groove (31); the cover tooth groove (31) is meshed with the first valve core force transmission tooth (53); and the second valve core force transmission tooth (55) is meshed with the seat tooth groove (102).

3. The open and close double return core positioner according to claim 2, characterized in that: A wide-face closed-door positioning recessed hole (54) and a narrow-face open-door positioning recessed hole (52) are arranged at intervals on the side of the valve core (5); two ends of the cylinder sleeve (9) are provided with sleeve recessed balls (91) and sleeve inner holes (92), respectively; the sleeve inner holes (92) are clearance-matched with the energy storage cylinder (10); the sleeve recessed balls (91) are matched with sleeve steel balls (12); the energy storage cylinder (10) pushes the cylinder sleeve (9) to move so that the sleeve steel balls (12) abut against the wide-face closed-door positioning recessed hole (54) or the narrow-face open-door positioning recessed hole (52).

4. The open and close double return core positioner according to claim 1, characterized in that: The limit stopper (6) is provided with a low position without stopper (61) and a high position stopper (62), and the positioner seat (1) is provided with a normally open stopper (104), and the normally open stopper (104) is adjacent to the low position without stopper (61) and / or the high position stopper (62).

5. The open and close double return core positioner according to claim 4, characterized in that: There are two limit blocks (6), which are respectively installed on both sides of the longitudinal hole (23) of the device body.

6. The open and close double return core positioner according to claim 1, characterized in that: A positioner cover corner liner (4) is installed between the positioner cover (3) and the rectangular valve core (5), and a positioner seat corner liner (7) is installed between the rectangular valve core (5) and the positioner seat (1).

7. The open and close double return core positioner according to claim 1, characterized in that: The positioner seat (1) is provided with a seat screw hole (101) and a seat slot hole (105) for fixing with the rotating door frame, and the seat screw hole (101) is located inside the seat slot hole (105).

8. The open and close double return core positioner according to claim 1, characterized in that: The positioner body (2) is provided with an end plate slot hole (21) and an end plate screw hole (22) for fixing with the rotating door, and the end plate screw hole (22) is located inside the end plate slot hole (21).

9. The open and close double return core positioner according to claim 1, characterized in that: The body end cover (11) is threadedly connected to the opening of the body transverse hole (25).

Images