Bidirectional self-closing buffer door clamp

Abstract

The utility model discloses a bidirectional self-closing buffer door clamp which comprises a main body, a clamping assembly and a mounting plate. A first through hole is transversely formed in the body, a first side hole and a second side hole are sequentially formed in the side face of the body, a driving sleeve is arranged in the first side hole, two parallel idler wheels are arranged on the side, close to the first through hole, of the driving sleeve, a reset spring is arranged on the other side of the driving sleeve, a self-reset buffering oil cylinder is arranged in the second side hole, and a cam shaft is arranged in the first through hole. The cam shaft is provided with a first cam abutting against the idler wheel and a second cam abutting against the self-resetting buffering oil cylinder. The clamping assembly comprises a rotating plate and a clamping plate, the rotating plate is provided with an opening, the body is arranged at the opening, the two ends of the cam shaft are rotationally connected with the two sides of the opening, and the clamping plate is installed on the rotating plate in parallel and used for clamping a door leaf. The mounting plate is connected with the side face of the main body, covers the first side hole and the second side hole and is used for being mounted on a door frame. Therefore, the door leaf and the door frame can be hinged, and the functions of two-way opening, automatic buffering closing and door stopping positioning are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of door control hardware, especially relates to a bidirectional self-closing belt buffer door clamp. BACKGROUND

[0002] The door clamp refers to a glass door clamp, which is a hardware fitting for clamping a glass door to enable the door leaf and the door frame to be hingedly normally operated, and is widely applied to glass doors and windows, bathroom doors and shower rooms. However, the traditional glass door clamp has a simple structure and single function, and can only play a role of hingedly connecting the door leaf and the door frame, without functions of bidirectional opening, automatic buffer closing and door stopping positioning. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a bidirectional self-closing belt buffer door clamp, which can enable the door leaf and the door frame to be hingedly connected, and has the functions of bidirectional opening, automatic buffer closing and door stopping positioning.

[0004] The utility model adopts the technical scheme that

[0005] A bidirectional self-closing belt buffer door clamp comprises:

[0006] A main body is provided with a first through hole in the transverse direction, and a first side hole and a second side hole are sequentially arranged on the side surface and communicate with the first through hole. The first side hole is provided with a driving sleeve, two parallel rollers are arranged on the side of the driving sleeve close to the first through hole, a reset spring is arranged on the other side of the driving sleeve, the second side hole is provided with a self-resetting buffer oil cylinder, the first through hole is provided with a camshaft, the camshaft is provided with a first cam abutting against the roller and a second cam abutting against the self-resetting buffer oil cylinder, the first cam is provided with a first recess and a second recess on both sides of the first recess, and the second cam is provided with a first protrusion on the same side as the first recess.

[0007] A clamping assembly comprises a rotating plate and a clamping plate. The rotating plate is provided with an opening, the main body is arranged at the opening, the camshaft is connected to both sides of the opening, and the clamping plate is installed on the rotating plate in parallel for clamping the door leaf.

[0008] An installation plate is connected to the side surface of the main body and covers the first side hole and the second side hole. The installation plate is used for being installed on the door frame.

[0009] The utility model discloses a bidirectional self-closing belt buffer door clamp, at least has following beneficial effect: when opening the door leaf, need external force to drive the rotary plate rotation and drive camshaft rotation, the first cam outer surface and the rolling wheel rolling fit in the process of camshaft rotation, when the first cam rotates from the first recess to the high point between the first recess and one side second recess, thereby promotes drive sleeve to move towards the one side of mounting panel, and the reset spring of the other side of drive sleeve is compressed and stores energy, realizes the energy storage function of opening the door, and the second cam is correspondingly rotated from the first protrusion to the low point, and the piston rod of self-resetting buffer cylinder is extended and reset, and when the external force is removed, the reset spring releases energy and promotes drive sleeve to move towards the one side of first through hole, and the rolling wheel promotes the first cam to slide from the high point to the first recess, and in this process, the second cam rotates from the low point to the first protrusion, drives self-resetting buffer cylinder to move, realizes the rotation speed of buffer control camshaft, plays the role of buffering closing door.

[0010] According to some embodiments of the utility model, the first through hole is provided with rolling bearings at both ends.

[0011] Beneficially, the rolling bearings facilitate the rotational fitting and installation of the camshaft and the first through hole of the main body, and the rotation is smoother during the working process.

[0012] According to some embodiments of the utility model, the main body side is provided with a first threaded hole, the mounting plate is provided with a first butt joint hole matched with the first threaded hole, and the first threaded hole and the first butt joint hole are connected through a screw.

[0013] Beneficially, the first threaded hole and the first butt joint hole facilitate the butt joint installation of the mounting plate and the main body.

[0014] According to some embodiments of the utility model, the drive sleeve top is provided with two shaft holes, the shaft holes are provided with shaft rods, and the rolling wheels are installed on the shaft rods.

[0015] Beneficially, the shaft holes and the shaft rods facilitate the installation of the rolling wheels on the top of the drive sleeve.

[0016] According to some embodiments of the utility model, the drive sleeve bottom is provided with a bottom cylinder cavity, and one end of the reset spring is embedded in the bottom cylinder cavity.

[0017] Beneficially, the bottom of the driving sleeve is provided with a bottom cylinder cavity, which is beneficial to fixing and installing the reset spring.

[0018] According to some embodiments of the present application, the mounting plate is provided with a mounting groove, which is used for cooperating with the reset spring and the self-resetting buffer oil cylinder for mounting.

[0019] Beneficially, the mounting groove is beneficial to fixing the reset spring and the self-resetting buffer oil cylinder on the mounting plate, and prevents dislocation.

[0020] According to some embodiments of the present application, the mounting plate is provided with a mounting hole for connecting with the door frame.

[0021] Beneficially, the mounting hole is beneficial to mounting and connecting the mounting plate on the door frame.

[0022] According to some embodiments of the present application, the rotating plate is provided with a mounting seat on both sides of the opening, the mounting seat is provided with a first clamping groove and a second threaded hole on both sides of the first clamping groove on the top surface, the mounting seat is provided with a pressing seat, the pressing seat is provided with a second clamping groove and a second butt joint hole on both sides of the second clamping groove on the bottom surface, the first clamping groove and the second clamping groove are used for clamping the both ends of the camshaft, and the second threaded hole and the second butt joint hole are connected through a screw.

[0023] Beneficially, the mounting seat and the pressing seat are beneficial to clamping and fixing the both ends of the camshaft through the first clamping groove and the second clamping groove, and finally the second threaded hole and the second butt joint hole are fixed through a screw, which is connected and fastened, and is convenient for disassembly and assembly.

[0024] According to some embodiments of the present application, the rotating plate is provided with a stud, the stud is provided with a third threaded hole, the clamping plate is provided with a third butt joint hole, and the third threaded hole and the third butt joint hole are connected through a screw.

[0025] Beneficially, the third threaded hole and the third butt joint hole are beneficial to cooperating and mounting the rotating plate and the clamping plate, so as to clamp and fix the mounting position of the door leaf.

[0026] According to some embodiments of the present application, the self-resetting buffer oil cylinder is provided with a piston, the piston divides the inner cavity of the oil cylinder into an oil storage cavity and a pressure receiving cavity, the piston is provided with a rod portion extending from the top of the self-resetting buffer oil cylinder, and the pressure receiving cavity is provided with a pressure spring.

[0027] Advantageously, when the door is closed, the second cam of the self-resetting buffer cylinder rotates from the low point to the first convex portion, causing the piston to extend and move, and the hydraulic oil in the pressurized oil chamber to flow into the oil storage chamber, achieving a cushioned closing effect. When the door is opened, the piston rod extends and resets under the action of the pressure spring, and the hydraulic oil in the oil storage chamber flows into the pressurized oil chamber. A self-resetting buffer cylinder is one in which the piston rod is hydraulically damped when pushed in by an external force, causing it to move slowly. When the external force is removed, the pressure spring within the self-resetting buffer cylinder quickly pushes the piston rod out and resets it.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic diagram of the closed door state of an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of an embodiment of the present invention in the door-opening state;

[0032] Figure 3 A schematic diagram of an exploded embodiment of the present invention;

[0033] Figure 4 for Figure 3 Schematic diagram of the clamping assembly;

[0034] Figure 5 for Figure 3 Schematic diagram of the installation of the middle body and camshaft;

[0035] Figure 6 for Figure 5 Side view of the middle camshaft;

[0036] Figure 7 for Figure 3 Schematic diagram of the middle drive sleeve, self-resetting buffer cylinder and mounting plate;

[0037] Figure 8 for Figure 7 Internal schematic diagram of the self-resetting buffer cylinder;

[0038] Figure 9 for Figure 1 A cross-sectional diagram from another angle.

[0039] Reference signs: main body 100, first through hole 110, first side hole 120, second side hole 130, driving sleeve 140, roller 150, reset spring 160, self-resetting buffer oil cylinder 170, camshaft 180, first cam 190, second cam 200, first recess 210, second recess 220, first protrusion 230, rotating plate 240, clamping plate 250, opening 260, mounting plate 270, rolling bearing 280, first threaded hole 290, first butt joint hole 300, shaft hole 310, shaft rod 320, bottom cylinder cavity 330, mounting groove 340, mounting hole 350, mounting seat 360, first clamping groove 370, second threaded hole 380, pressing seat 390, second clamping groove 400, second butt joint hole 410, stud 420, third threaded hole 430, third butt joint hole 440, piston 450, oil storage cavity 460, pressure oil cavity 470, rod part 480, pressure spring 490. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used to explain the present application, and cannot be understood as a limitation of the present application.

[0041] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0042] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If the first and the second are described, this is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0043] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation, connection and connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication.For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0044] The following description refers to Figures 1-9 With a specific embodiment, a bidirectional self-closing and self-cushioning door clamp is described in detail.It is understood that the following description is only illustrative, not a specific limitation of the utility model.

[0045] As Figures 1-9 shown, a bidirectional self-closing and self-cushioning door clamp includes a main body 100, a clamping assembly and a mounting plate 270.

[0046] Wherein, the main body 100 is transversely provided with a first through hole 110, and is sequentially provided with a first side hole 120 and a second side hole 130 in the side surface, the first side hole 120 is provided with a driving sleeve 140, the driving sleeve 140 is provided with two parallel rollers 150 near the side of the first through hole 110, the other side of the driving sleeve 140 is provided with a return spring 160, the second side hole 130 is provided with a self-resetting buffer oil cylinder 170, the first through hole 110 is provided with a camshaft 180, the camshaft 180 is provided with a first cam 190 abutting against the roller 150 and a second cam 200 abutting against the self-resetting buffer oil cylinder 170, the first cam 190 is provided with a first recess 210 and a second recess 220 located on both sides of the first recess 210, the second cam 200 is provided with a first protrusion 230 on the same side as the first recess 210;The clamping assembly includes a rotating plate 240 and a clamping plate 250, the rotating plate 240 is provided with an opening 260, the main body 100 is arranged at the opening 260, the both ends of the camshaft 180 are rotatably connected with both sides of the opening 260, and the clamping plate 250 is parallelly installed on the rotating plate 240 for clamping the door leaf;The mounting plate 270 is connected with the side surface of the main body 100 and covers the first side hole 120 and the second side hole 130, and the mounting plate 270 is used for mounting on the door frame. Figure 2As shown, the opening of the door needs external force to drive the rotating plate 240 to rotate and the cam shaft 180 to rotate. In the process of rotating the cam shaft 180, the outer surface of the first cam 190 is in rolling cooperation with the roller 150. When the first cam 190 rotates from the first recess 210 to the high point between the first recess 210 and one of the second recesses 220, it pushes the driving sleeve 140 to move to one side of the mounting plate 270, and the reset spring 160 on the other side of the driving sleeve 140 is compressed to store energy, realizing the energy storage function of opening the door. Correspondingly, the second cam 200 rotates from the first protrusion 230 to the low point, and the piston 450 of the reset buffer oil cylinder 170 extends to reset. As shown, Figure 1 When the external force is removed, the reset spring 160 releases energy to push the driving sleeve 140 to move to one side of the first through hole 110, and the roller 150 pushes the first cam 190 to slide from the high point to the first recess 210, realizing the reset rotation of the cam shaft 180. In this process, the second cam 200 rotates from the low point to the first protrusion 230, and the reset buffer oil cylinder 170 realizes the buffer control of the rotating speed of the cam shaft 180, playing the role of buffering the closing of the door. When the cam shaft 180 rotates to the position where the second recess 220 on the first cam 190 is opposite to the roller 150, the roller 150 and the second recess 220 are clamped under the pressure released by the reset spring 160, so that the cam shaft 180 stays at the corresponding position and is not easy to rotate, realizing the positioning function of the door stopper. The bidirectional self-closing door stopper with buffer adopts a double-roller 150 driving device, which is not easy to wear during use. The two-point positioning of the double-roller 150 corresponding to the cam shaft 180 makes the reset angle of the product more stable. The pressure released by the reset spring 160 pushes the roller 150 to tightly contact the surface of the first cam 190 and the second cam 200, effectively eliminating the gap between the moving components and positioning more accurately. Figure 9 As shown, the two-point positioning and the center of the cam shaft 180 form a triangular relationship, making the reset angle of the product more stable. The pressure released by the reset spring 160 pushes the roller 150 to tightly contact the surface of the first cam 190, effectively eliminating the gap between the moving components and positioning more accurately.

[0047] As shown, Figure 5 The first through hole 110 is provided with a rolling bearing 280 at both ends. The rolling bearing 280 is more conducive to the rotating cooperation and installation of the cam shaft 180 and the first through hole 110 of the main body 100, and the rotating process is more smooth.

[0048] As shown, Figure 7As shown, the main body 100 side is provided with a first threaded hole 290, the mounting plate 270 is provided with a first butt joint hole 300 matched with the first threaded hole 290, and the first threaded hole 290 and the first butt joint hole 300 are connected through a screw. The first threaded hole 290 and the first butt joint hole 300 are beneficial to the butt joint installation of the mounting plate 270 and the main body 100. Moreover, the top of the driving sleeve 140 is provided with two shaft holes 310, the shaft holes 310 are provided with shaft rods 320, and the rollers 150 are installed on the shaft rods 320. The shaft holes 310 and the shaft rods 320 are beneficial to the installation of the rollers 150 on the top of the driving sleeve 140. In addition, the bottom of the driving sleeve 140 is provided with a bottom cylinder cavity 330, and one end of the reset spring 160 is embedded in the bottom cylinder cavity 330. The bottom of the driving sleeve 140 is provided with the bottom cylinder cavity 330, which is beneficial to the fixed installation of the reset spring 160. Correspondingly, the mounting plate 270 is provided with a mounting hole 350 for connecting with the door frame. The mounting hole 350 is beneficial to the mounting and connection of the mounting plate 270 on the door frame.

[0049] Further, as shown in Figure 1 and Figure 2 , the mounting plate 270 is provided with a mounting groove 340, and the mounting groove 340 is used for cooperating with the reset spring 160 and the self-resetting buffer oil cylinder 170. The mounting groove 340 is beneficial to the fixing of the reset spring 160 and the self-resetting buffer oil cylinder 170 on the mounting plate 270, and prevents the position from running. According to some embodiments of the present application, the mounting seat 360 is arranged on both sides of the opening 260 of the rotating plate 240, the top surface of the mounting seat 360 is provided with a first clamping groove 370 and a second threaded hole 380 arranged on both sides of the first clamping groove 370, the mounting seat 360 is provided with a pressing seat 390, the bottom surface of the pressing seat 390 is provided with a second clamping groove 400 and a second butt joint hole 410 arranged on both sides of the second clamping groove 400, the first clamping groove 370 and the second clamping groove 400 are used for clamping both ends of the camshaft 180, so that the camshaft 180 is fixedly connected with the rotating plate 240, and the second threaded hole 380 and the second butt joint hole 410 are connected through a screw. The mounting seat 360 and the pressing seat 390 are beneficial to the clamping of both ends of the camshaft 180 through the first clamping groove 370 and the second clamping groove 400, and finally the second threaded hole 380 and the second butt joint hole 410 are fixed through a screw, so that the connection is fastened and the disassembly and assembly are convenient.

[0050] It can be understood that, as shown in Figure 4 , the rotating plate 240 is provided with a stud 420, the stud 420 is provided with a third threaded hole 430, the clamping plate 250 is provided with a third butt joint hole 440, and the third threaded hole 430 and the third butt joint hole 440 are connected through a screw. The third threaded hole 430 and the third butt joint hole 440 are beneficial to the cooperative installation and connection of the rotating plate 240 and the clamping plate 250, so that the installation position of the door leaf is clamped and fixed.

[0051] It is worth mentioning that, asFigure 8 As shown, the self-resetting buffer oil cylinder 170 is provided with a piston 450, which divides the oil cylinder cavity into an oil storage cavity 460 and a pressure oil cavity 470, the piston 450 is provided with a rod part 480 extending from the top of the self-resetting buffer oil cylinder 170, and the pressure oil cavity 470 is provided with a pressure spring 490. In this way, when the door is closed, the second cam 200 rotates from the low point to the first convex part 230, the piston 450 extends and moves, the hydraulic oil in the pressure oil cavity 470 slowly flows to the oil storage cavity 460, the pressure spring 490 is compressed, the piston 450 extends and moves under the damping force to achieve the effect of buffering the closing of the door, and when the door is opened, the rod part 480 extends and resets under the action of the pressure spring 490, and the hydraulic oil in the oil storage cavity 460 flows to the pressure oil cavity 470.

[0052] In the description of the present specification, the description of the terms "one embodiment, some embodiments, illustrative embodiments, examples, specific examples, or some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner without departing from the purpose of the present application.

[0053] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled persons in the art without departing from the purpose of the present application.

Claims

1. A two-way self-closing, self-latching door stop, comprising: The utility model relates to a door closer, including: The main part (100) is provided with first through -hole (110) transversely, and the side is provided with first side hole (120) and second side hole (130) in proper order with first through -hole (110) communication, first side hole (120) is provided with drive sleeve (140), drive sleeve (140) is provided with two parallel gyro wheel (150) near first through -hole (110) side, drive sleeve (140) is provided with reset spring (160) on the other side, second side hole (130) is provided with self-resetting buffer oil cylinder (170), first through -hole (110) is provided with camshaft (180), camshaft (180) is provided with first cam (190) with gyro wheel (150) abutment, second cam (200) with self-resetting buffer oil cylinder (170) abutment, first cam (190) is provided with first recess (210), second recess (220) on the both sides of first recess (210), second cam (200) is provided with first convex part (230) with the same side of first recess (210); Clamping assembly includes rotating plate (240) and clamping plate (250), rotating plate (240) is provided with opening (260), main part (100) sets up at opening (260), camshaft (180) both ends are connected with the both sides of opening (260) respectively, clamping plate (250) is installed in the rotating plate (240) for clamping door leaf in parallel, Mounting plate (270) is connected with the side of main part (100) and covers first side hole (120) and second side hole (130), and mounting plate (270) is used for mounting on door frame.

2. A two-way self-closing door closer according to claim 1, wherein, First through -hole (110) both ends are provided with gyro wheel (280).

3. The two-way self-closing door closer according to claim 1, wherein, The side of main part (100) is provided with first threaded hole (290), and the first threaded hole (290) is provided with first docking hole (300) matched with the first threaded hole (290) on mounting plate (270), and the first threaded hole (290) and the first docking hole (300) are connected through screw.

4. The two-way self-closing door closer according to claim 1, wherein, The top of drive sleeve (140) is provided with two shaft holes (310), and shaft rod (320) is installed in shaft hole (310).

5. The two-way self-closing door closer according to claim 1, wherein, The bottom of drive sleeve (140) is provided with bottom cylinder cavity (330), and one end of reset spring (160) is embedded in bottom cylinder cavity (330).

6. The two-way self-closing door closer according to claim 1, wherein, Mounting plate (270) is provided with mounting groove (340), and mounting groove (340) is used for mounting reset spring (160) and self-resetting buffer oil cylinder (170) in cooperation.

7. The two-way self-closing door closer according to claim 1, wherein, Mounting plate (270) is provided with mounting hole (350) for connecting with door frame.

8. The two-way self-closing door closer according to claim 1, wherein, The rotating plate (240) is provided with a mounting seat (360) on both sides of the opening (260), the top surface of the mounting seat (360) is provided with a first clamping groove (370) and a second threaded hole (380) located on both sides of the first clamping groove (370), the mounting seat (360) is provided with a pressing seat (390), the bottom surface of the pressing seat (390) is provided with a second clamping groove (400) and a second butt joint hole (410) located on both sides of the second clamping groove (400), the first clamping groove (370) and the second clamping groove (400) are used for clamping and mounting the two ends of the camshaft (180), and the second threaded hole (380) and the second butt joint hole (410) are connected through a screw.

9. The two-way self-closing doorstop according to claim 1, wherein, The rotating plate (240) is provided with a stud (420), the stud (420) is provided with a third threaded hole (430), the clamping plate (250) is provided with a third butt joint hole (440), and the third threaded hole (430) and the third butt joint hole (440) are connected through a screw.

10. The two-way self-closing door closer according to claim 1, wherein, The self-resetting buffer oil cylinder (170) is provided with a piston (450), the piston (450) divides the oil cylinder cavity into an oil storage cavity (460) and a pressure receiving cavity (470), the piston (450) is provided with a rod portion (480) extending from the top of the self-resetting buffer oil cylinder (170), and the pressure receiving cavity (470) is provided with a pressure spring (490).

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