Door opener and closer with force adjustment device

Abstract

The present invention discloses a door body opener and closer with a force adjustment device, comprising a housing, a driving device and a force adjustment device arranged in the housing, wherein: the driving device comprises a first set of rods and a second set of rods, the first set of rods is provided with a first spring, and the second set of rods is provided with a second spring; the force adjustment device comprises an adjustment screw, an adjustment lever and an adjustment spring, the adjustment spring is arranged in the deformation direction of the second spring, one end of the adjustment lever compresses the adjustment spring, and the other end cooperates with the adjustment nut, and the adjustment nut moves along the axial direction of the adjustment screw. The present invention is provided with a force adjustment device, and the user rotates the adjustment screw to adjust the swing of the adjustment lever to compress the adjustment spring, thereby realizing that the user can adjust the damping force of the door body opener and closer by himself.

Description

Technical Field

[0001] The invention belongs to the field of furniture hardware accessories, and in particular relates to a door opener and closer with a force regulating device. Background Art

[0002] Chinese patent document CN10976376 A discloses a door opener, including a shell composed of an upper cover plate and a lower cover plate. The key is that there is a pushing device in the shell for pushing the door to rotate, one end of a driving device with a spring drives the pushing device to rotate through a rotating pendulum, and a locking release device cooperating with the driving device is provided at the other end of the driving device.

[0003] Although this solution makes the opening and closing of the swing door more convenient, the damping during the opening and closing of the door body is not adjustable, which seriously affects the user experience. Therefore, it is necessary to optimize the door body opener and closer. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a door body opener and closer with a force adjustment device, which can enable users to adjust the damping force of the door body opener and closer by themselves.

[0005] The above technical problem is solved by the following technical solution: A door body opener and closer with a force adjustment device comprises a housing, a driving device and a force adjustment device are arranged in the housing, wherein:

[0006] The driving device comprises a first set of rods and a second set of rods, wherein the first set of rods is provided with a first spring, and the second set of rods is provided with a second spring;

[0007] The force adjustment device includes an adjustment screw, an adjustment lever and an adjustment spring. The adjustment spring is arranged in the deformation direction of the second spring. One end of the adjustment lever compresses the adjustment spring, and the other end cooperates with the adjustment nut. The adjustment nut moves axially along the adjustment screw.

[0008] The beneficial effects of the present invention compared with the background technology are as follows: the present invention is provided with a force adjustment device, and the user can adjust the lever swing to compress the adjustment spring by rotating the adjustment screw, thereby realizing that the user can adjust the damping force of the door opener and closer by himself.

[0009] In one of the embodiments, the adjusting spring is sleeved on the second sleeve rod, and the second sleeve rod is provided with a rod body convex ring separating the adjusting spring and the second spring.

[0010] Beneficial effects: the adjusting spring and the second spring are both sleeved on the second sleeve rod and separated by the convex ring of the rod body, and the structure is simple and compact.

[0011] In one embodiment, the second rod slides axially along the housing, and the adjustment lever pushes the second rod and compresses the adjustment spring.

[0012] Beneficial effects: The spring compression is adjusted by sliding the second set of rods, the structure is simple and reliable, and the cost is low.

[0013] In one embodiment, the force adjustment device includes a force indicator plate and a force indicator hole. The force indicator hole is arranged on the shell, and a force scale is arranged on the edge of the force indicator hole. The adjustment lever pushes the force indicator plate to move back and forth in the force indicator hole.

[0014] Beneficial effect: The setting of the force indicator sheet enables the user to intuitively understand the damping strength of the door opener and closer, thereby improving the convenience of adjustment.

[0015] In one embodiment, the first rod set and the second rod set are arranged in parallel, the first rod set slides axially along the housing and is sleeved with a first sliding sleeve, and the second rod set is sleeved with a second sliding sleeve.

[0016] Beneficial effect: The double-sleeve design facilitates the individual adjustment of the forces of the first spring and the second spring, thereby improving the adjustable damping during the opening and closing process of the door.

[0017] In one of the embodiments, the shell clamps the first sliding sleeve and the second sliding sleeve, the first sliding sleeve and the second sliding sleeve are slidably matched, and the two together form a sliding sleeve cavity, a cavity spring is provided in the sliding sleeve cavity, and the first sliding sleeve and the second sliding sleeve are linked through the cavity spring.

[0018] Beneficial effect: The first sliding sleeve and the second sliding sleeve transmit the force therebetween through the cavity spring, thereby achieving a flexible sliding connection between the first sliding sleeve and the second sliding sleeve.

[0019] In one of the embodiments, the shell is provided with a door pushing device, which includes a push rod for pushing the door body to rotate, the root of the push rod is a cam, the cam is provided with a cam groove and a cam rod, a set of rod forks are coaxially arranged with the cam, and the cam drives the sleeve rod fork through the cam rod, so that the sleeve rod fork drives the first set of rods.

[0020] In one embodiment, the cam is composed of two stacked cam pieces, a cam clamping groove is formed between the two cam pieces, a sleeve rod fork is arranged in the cam clamping groove, and a cam rod is arranged in the cam clamping groove to connect the two cam pieces.

[0021] In one embodiment, the cam of the door pushing device pushes the first sliding sleeve to compress the first spring through the first rotating pendulum member, and pushes the second sliding sleeve to compress the second spring through the second rotating pendulum member.

[0022] In one of the embodiments, the first rotating pendulum member and the second rotating pendulum member are respectively composed of a bearing seat, a bearing and a support seat. One end of the bearing seat and the support seat are connected to the housing shaft through an axle pin, and the other two ends of the bearing seat are respectively connected to the bearings. A bearing seat groove is provided on the surface of the bearing seat, and a support seat boss is provided on the surface of the support seat. The bearing seat groove and the support seat boss are embedded and positioned, and the two support seats are tightly attached to each other and slide in cooperation.

[0023] The above embodiments can be arbitrarily combined to form a combined embodiment according to product design requirements and on the premise that the technical solutions are not contradictory. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 2 is a structural exploded view of the present invention;

[0026] Figure 3 It is a partial structural exploded view of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the door-pushing device in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the first set of rods in the present invention;

[0029] Figure 6 It is a schematic diagram of the working state change of the locking and releasing device in the present invention;

[0030] Figure 7 It is a structural schematic diagram of the first sliding sleeve and the second sliding sleeve in the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the buffer device in the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the force adjustment device in the present invention;

[0033] Fig.10 It is a schematic diagram of the working state change of the force adjustment device in the present invention;

[0034] Fig.11 This is a structural schematic diagram of the working state 1 of the present invention;

[0035] Fig.12 It is a structural schematic diagram of the working state 2 of the present invention;

[0036] Fig.13 This is a structural schematic diagram of working state three of the present invention;

[0037] Fig.14 This is a structural schematic diagram of working state 4 of the present invention;

[0038] Fig.15 It is a structural schematic diagram of working state 5 of the present invention.

[0039] Wherein: 1 door push device, 11 first rotating swing member, 11a bearing seat, 11b bearing, 11c support seat, 11d bearing seat groove, 11e support seat boss, 12 second rotating swing member, 12a bearing seat, 12b bearing, 12c support seat, 12d bearing seat groove, 12e support seat boss, 13 cam, 13a cam groove, 13b cam rod, 13c cam clamping groove, 14 shaft pin, 15 sleeve rod fork, 16 push rod, 17 push rod slider;

[0040] 2 driving device, 21 first rod, 21a first spring, 21b first sleeve, 21c lever section, 21d driving slider, 22 second rod, 22a second spring, 22b second sleeve, 22c rod body convex ring, 23 sleeve cavity, 24 cavity spring, 25 sleeve groove, 26 housing convex ridge;

[0041] 3 locking release device, 31 stopper, 31a blocking portion, 31b locking portion, 32 locking damper, 33 locking hook, 34 releasing push block;

[0042] 4 buffer device, 41 buffer block, 41a balance guide plate, 41b sliding limit plate, 41c fork limit plate, 42 buffer damper, 43 buffer fork;

[0043] 5 force adjustment device, 51 adjustment screw, 52 adjustment lever, 53 adjustment spring, 54 adjustment nut, 55 force indicator sheet, 56 force indicator hole. DETAILED DESCRIPTION

[0044] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] like Figure 1-Figure 10 As shown, the door opener and closer of this embodiment includes a shell, in which a door pushing device 1, a driving device 2, a locking release device 3, a buffer device 4 and a force adjustment device 5 are arranged.

[0046] like Figure 1-Figure 4 As shown, the door push device 1 comprises a first rotating swing member 11, a second rotating swing member 12, a cam 13, an axle pin 14, a sleeve rod fork 15, a push rod 16 and a push rod slider 17. The door push device 1 is connected to the driving device 2 through the first rotating swing member 11 and the second rotating swing member 12, and pushes the door body to rotate.

[0047] The first rotating pendulum 11 and the second rotating pendulum 12 are arranged side by side and fixed in the housing by the same shaft pin 14, and rotate synchronously around the axis. The first rotating pendulum 11 and the second rotating pendulum 12 are respectively composed of bearing seats 11a, 12a, bearings 11b, 12b and support seats 11c, 12c. The bearing seats 11a, 12a are triangular structures. One end of the bearing seats 11a, 12a and the support seats 11c, 12c are connected to the housing shaft through the shaft pin 14, and the other two ends are respectively connected to the bearings 11b, 12b. The surfaces of the bearing seats 11a, 12a are provided with bearing seat grooves 11d, 12d, and the surfaces of the support seats 11c, 12c are provided with support seat bosses 11e, 12e. The bearing seat grooves 11d, 12d are embedded and positioned with the support seat bosses 11e, 12e, and the two support seats 11c, 12c are tightly attached to each other and slide in cooperation.

[0048] The push rod 16 of the door push device 1 is used to push the door body to rotate, and the cam 13 is arranged at the root of the push rod 16. The cam 13 is provided with a cam groove 13a and a cam rod 13b, and a set rod fork 15 is coaxially arranged with the cam 13. The cam 13 moves the set rod fork 15 through the cam rod 13b, so that the set rod fork 15 moves the first set rod 21. The push rod 16 is sleeved and slidably matched with the push rod slider 17, and the push rod slider 17 is connected to the door body bracket shaft.

[0049] The cam 13 is composed of two stacked cam pieces, a cam clamping groove 13c is formed between the two cam pieces, a sleeve rod shift fork 15 is arranged in the cam clamping groove 13c, and a cam rod 13b is arranged in the cam clamping groove 13c to connect the two cam pieces.

[0050] like Figure 1-Figure 3 As shown, the driving device 2 includes a first set of rods 21 and a second set of rods 22 arranged in parallel. Figure 5 As shown, the first rod 21 is provided with a first spring 21a, a first sleeve 21b, a lever section 21c and a driving slider 21d. The first rod 21 slides along the axial direction of the housing, and the first spring 21a and the first sleeve 21b are sleeved on the first rod 21. The lever section 21c and the driving slider 21d are located at both ends of the first rod 21, and the first spring 21a is sandwiched between the first sleeve 21b and the driving slider 21d.

[0051] The second rod 22 is sleeved with a second spring 22a and a second sliding sleeve 22b. The first rotating pendulum 11 pushes the first sliding sleeve 21b to compress the first spring 21a. The second rotating pendulum 12 pushes the second sliding sleeve 22b to compress the second spring 22a. The locking and releasing device 3 is used to lock and release the first rod 21.

[0052] like Figure 7As shown, the first sliding sleeve 21b and the second sliding sleeve 22b are respectively provided with sliding sleeve grooves 25, the housing is provided with housing ridges 26, the housing clamps the first sliding sleeve 21b and the second sliding sleeve 22b, and the sliding sleeve grooves 25 and the housing ridges 26 are slidably matched. At the same time, the first sliding sleeve 21b and the second sliding sleeve 22b are slidably matched, and the two together form a sliding sleeve cavity 23, and a cavity spring 24 is provided in the sliding sleeve cavity 23, and the first sliding sleeve 21b and the second sliding sleeve 22b are linked by the cavity spring 24. The sliding sleeve cavity 23 is located between the first set rod 21 and the second set rod 22, and the first rotating pendulum 11 and the second rotating pendulum 12 are respectively against the sliding sleeve cavity 23.

[0053] like Figure 6 As shown, the locking release device 3 includes a block 31, a locking damper 32, a lock hook 33 and a release push block 34. The block 31 is rotatable and is forked with a blocking portion 31a and a locking portion 31b. The blocking portion 31a is provided with a blocking end face for blocking the first set rod 21. The blocking end face is an obtuse end face, and the driving slider 21d cooperates with the blocking end face; the locking damper 32 is located on the rotation trajectory of the blocking portion 31a; the lock hook 33 is located on the rotation trajectory of the locking portion 31b and is hooked with the locking portion 31b, and the release push block 34 controls the loosening of the lock hook 33 and the locking portion 31b.

[0054] The blocking portion 31a is provided with a sliding end surface for the driving slider 21d of the first set rod 21 to slide, and the obtuse end surface is located at the end of the sliding end surface; the locking damper 32 is sandwiched between the blocking portion 31a and the locking portion 31b; the lock hook 33 is rotatable, the hook end of the lock hook 33 is hooked with the locking portion 31b, and the pressing end of the lock hook 33 is in contact with the release push block 34. The lock hook 33 and the release push block 34 are respectively provided with a return spring. The pressing end of the lock hook 33 is inserted into the release groove of the release push block 34, and the return spring drives the hook end of the lock hook 33 to rotate clockwise. The release groove is axially arranged on the side wall of the release push block 34, and the return spring drives the release push block 34 to move axially.

[0055] like Figure 1-Figure 4 As shown, the buffer device 4 includes a buffer block 41, a buffer damper 42 and a buffer fork 43. One end of the buffer damper 42 is fixed to the housing, and the other end cooperates with the buffer block 41. The buffer block 41 is arranged in the buffer slide groove of the housing to slide back and forth. The buffer fork 43 is located between the first rotating pendulum 11 and the second rotating pendulum 12. A fork gap is left between the support seats 11c and 12c of the two rotating pendulums. The buffer fork 43 is installed in the fork gap. The first rotating pendulum 11, the second rotating pendulum 12 and the buffer fork 43 are coaxially arranged (that is, they are all connected to the housing shaft through the shaft pin 14). The first rotating pendulum 11 or the second rotating pendulum 12 pushes the buffer fork 43 through the bearing, so that the buffer fork 43 moves the buffer block 41.

[0056] like Figure 8As shown, the buffer block 41 is an arc-shaped structure, and the buffer block 41 is provided with a sliding limit plate 41b, a balancing guide plate 41a and a fork limit plate 41c. The balancing guide plate 41a is located on the inner circle side of the arc, the sliding limit plate 41b is located at the top of the arc, and the fork limit plate 41c is located in the middle and end of the arc. The buffer chute is an arc-shaped groove, and the housing clamps the buffer block 41 in the buffer chute. The buffer chute is provided with a chute limit plate, a guide hole and a fork hole. The sliding limit plate 41b cooperates with the chute limit plate, the balancing guide plate 41a is clamped in the guide hole, and the buffer fork 43 passes through the fork hole and cooperates with the fork limit plate 41c. Further, the buffer fork 43 is provided with a first fork end and a second fork end. The first fork end is located on the rotation track of the first rotating pendulum 11 or the second rotating pendulum 12 and cooperates with the bearing, and the second fork end is located on the moving track of the buffer block 41 and alternately cooperates with the two fork limit plates 41c of the buffer block 41.

[0057] like Figure 9-10 As shown, the force adjustment device 5 includes an adjustment screw 51, an adjustment lever 52 and an adjustment spring 53. The adjustment spring 53 is sleeved on the second rod 22 and is separated from the second spring 22a by the rod body convex ring 22c on the second rod 22. One end of the adjustment lever 52 compresses the adjustment spring 53, and the other end cooperates with the adjustment nut 54. The adjustment nut 54 moves axially along the adjustment screw 51. The second rod 22 slides axially along the housing, and the adjustment lever 52 pushes the second rod 22 and compresses the adjustment spring 53.

[0058] The force adjustment device 5 includes a force indication sheet 55 and a force indication hole 56. The force indication hole 56 is arranged on the housing. Figure 1-Figure 3 As shown, a force scale is provided on the edge of the force indicating hole 56 , and the adjusting lever 52 pushes the force indicating sheet 55 to move back and forth in the force indicating hole 56 .

[0059] The working principle of the present invention is described below by taking the door opening-closing-opening working cycle as an example:

[0060] Initially, if Fig.11 As shown, the door body is in an open state, at this time, the buffer block 41 is pushed out of the shell by the buffer damper 42, and the first rotating pendulum member 11 and the second rotating pendulum member 12 are pushed to the cam groove 13a of the door pushing device 1 by the first sliding sleeve 21b and the second sliding sleeve 22b under the action of the first spring 21a and the second spring 22a respectively, and the blocking portion 31a of the block 31 of the locking release device 3 presses against the driving slider 21d of the first set rod 21, and the set rod fork 15 presses against the lever section 21c of the first set rod 21.

[0061] When closing the door, Fig.12As shown in FIG. 1 , the door body rotates to drive the first rotating pendulum 11 and the second rotating pendulum 12 to rotate out of the cam groove 13a, and push the first sliding sleeve 21b and the second sliding sleeve 22b, compressing the first spring 21a and the second spring 22a to complete energy storage. When the door body touches the buffer block 41, the closing speed slows down until the buffer block 41 retracts into the shell to compress the buffer damper 42, and the door body is completely closed. Fig.13 shown.

[0062] When the door is reopened, Fig.14 As shown, the door body is pressed, the push block 34 is released to drive the lock hook 33 to rotate so that the hook of the lock hook 33 is separated from the locking portion 31b of the block 31. At this time, the energy of the first spring 21a and the buffer damper 42 is released. The buffer block 41 is pushed out of the housing by the buffer damper 42. The first spring 21a pushes the first sleeve rod 21 to slide, overcomes the resistance of the blocking portion 31a of the block 31, and makes the block 31 rotate and compress the locking damper 32 and the reset spring of the lock hook 33. The first sleeve rod 21 slides along the sliding end surface of the block 31 and drives the sleeve rod fork 15 through the lever section 21c. At this time, the first rotating pendulum 11 and the second rotating pendulum 12 push the first sliding sleeve 21b and the second sliding sleeve 22b respectively, compressing the second spring 22a and the cavity spring 24.

[0063] like Fig.15 As shown, during the door opening process, when the door rotates to the cam groove 13a reaching the first rotating pendulum 11 and the second rotating pendulum 12, the energy of the second spring 22a and the cavity spring 24 is released, and the second spring 22a pushes the second sliding sleeve 22b to slide along the second set rod 22 and pushes the second rotating pendulum 12 to rotate, and at the same time, the cavity spring 24 drives the first sliding sleeve 21b to slide along the first set rod 21 in the same direction and pushes the first rotating pendulum 11 to rotate, until one end of the first rotating pendulum 11 and the second rotating pendulum 12 respectively sink into the cam groove 13a, and the door is completely opened. The buffer fork 43 pushes the buffer block 41 to return to the shell and compresses the buffer damper 42.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A door opener and closer with a force adjustment device, comprising a housing, a driving device (2) and a force adjustment device (5) being arranged in the housing, characterized in that: The driving device (2) comprises a first set of rods (21) and a second set of rods (22); the first set of rods (21) is sleeved with a first spring (21a), and the second set of rods (22) is sleeved with a second spring (22a); The force adjustment device (5) comprises an adjustment screw (51), an adjustment lever (52) and an adjustment spring (53); the adjustment spring (53) is arranged in the deformation direction of the second spring (22a); one end of the adjustment lever (52) compresses the adjustment spring (53) and the other end cooperates with the adjustment nut (54); the adjustment nut (54) moves axially along the adjustment screw (51).

2. The door opener and closer with a force adjustment device according to claim 1, characterized in that: The regulating spring (53) is sleeved on the second sleeve rod (22), and the second sleeve rod (22) is provided with a rod body convex ring (22c) for separating the regulating spring (53) and the second spring (22a).

3. The door opener and closer with a force adjustment device according to claim 2, characterized in that: The second rod (22) slides axially along the housing, and the adjustment lever (52) pushes the second rod (22) and compresses the adjustment spring (53).

4. The door opener and closer with a force adjustment device according to claim 1, characterized in that: The force adjustment device (5) comprises a force indication sheet (55) and a force indication hole (56); the force indication hole (56) is arranged on the housing; a force scale is arranged on the edge of the force indication hole (56); and the adjustment lever (52) pushes the force indication sheet (55) to reciprocate in the force indication hole (56).

5. The door opener and closer with a force adjustment device according to claim 1, characterized in that: The first rod set (21) and the second rod set (22) are arranged in parallel; the first rod set (21) slides axially along the housing and is sleeved with a first sliding sleeve (21b); the second rod set (22) is sleeved with a second sliding sleeve (22b).

6. The door opener and closer with a force adjustment device according to claim 5, characterized in that: The housing clamps the first sliding sleeve (21b) and the second sliding sleeve (22b), the first sliding sleeve (21b) and the second sliding sleeve (22b) are slidably matched, and the two together form a sliding sleeve cavity (23), a cavity spring (24) is provided in the sliding sleeve cavity (23), and the first sliding sleeve (21b) and the second sliding sleeve (22b) are linked via the cavity spring (24).

7. The door opener and closer with a force adjustment device according to any one of claims 1 to 6, characterized in that: The housing is provided with a door pushing device (1), the door pushing device (1) comprising a push rod (16) for pushing the door body to rotate, the root of the push rod (16) being a cam (13), the cam (13) being provided with a cam groove (13a) and a cam rod (13b), a set rod shift fork (15) being coaxially arranged with the cam (13), the cam (13) shifting the set rod shift fork (15) through the cam rod (13b), so that the set rod shift fork (15) shifts the first set rod (21).

8. The door opener and closer with a force adjustment device according to claim 7, characterized in that: The cam (13) is composed of two stacked cam plates, a cam clamping groove (13c) is formed between the two cam plates, a sleeve rod shift fork (15) is arranged in the cam clamping groove (13c), and a cam rod (13b) is arranged in the cam clamping groove (13c) to connect the two cam plates.

9. The door opener and closer with a force adjustment device according to claim 7, characterized in that: The cam (13) of the door-pushing device (1) pushes the first sliding sleeve (21b) to compress the first spring (21a) through the first rotating swing member (11), and pushes the second sliding sleeve (22b) to compress the second spring (22a) through the second rotating swing member (12).

10. The door opener and closer according to claim 9, characterized in that: The first rotating pendulum member (11) and the second rotating pendulum member (12) are respectively composed of a bearing seat (11a, 12a), a bearing (11b, 12b) and a support seat (11c, 12c); one end of the bearing seat (11a, 12a) and the support seat (11c, 12c) are connected to the housing shaft through an axle pin (14); the other two ends of the bearing seat (11a, 12a) are respectively connected to the bearing (11b, 12b); a bearing seat groove (11d, 12d) is provided on the surface of the bearing seat (11a, 12a); a support seat boss (11e, 12e) is provided on the surface of the support seat (11c, 12c); the bearing seat groove (11d, 12d) and the support seat boss (11e, 12e) are embedded and positioned, and the two support seats (11c, 12c) are tightly attached to each other and slidably matched.

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