Buffer type oil cylinder split type device

Abstract

The utility model discloses a buffering type oil cylinder split type device which comprises a box body, a cavity is formed in the box body, a connecting plate is fixedly installed on the outer wall of the cavity, a cam is rotationally connected to the interior of the cavity, a peach heart blade is fixedly installed on the outer wall of the cam, a dragging plate is arranged in the cavity in a sliding mode, and the dragging plate is connected with the box body in a sliding mode. A first pulley is fixedly installed on the outer wall of the carriage, a second pulley is arranged outside the heart-shaped blade, a compression spring is fixedly installed at the end, away from the heart-shaped blade, of the carriage, a floor spring piston is fixedly installed at the end, away from the carriage, of the compression spring, and a clamping plate is fixedly installed on the outer wall of the floor spring piston. A damping cylinder is fixedly mounted at the end, away from the floor spring piston, of the floor spring piston, a mounting plate is fixedly mounted at the end, away from the floor spring piston, of the damping cylinder, a cavity is formed in the distance between the floor spring piston and the damping cylinder, and a mounting part is fixedly mounted on the inner wall of the box body.

Description

Technical Field

[0001] The utility model relates to the technical field of buffer type oil cylinders, in particular to a buffer type oil cylinder split device. Background Art

[0002] At present, the floor springs (also called door closers, etc.) on the market are connected to glass, wood, profiles, fire doors, etc. through connectors. When a person pushes the door open manually, the door opens to 90 degrees and transmits force to the inside of the floor spring. The spring is compressed by the connecting rod mechanism to store energy for closing the door. When you let go or open the door manually, the spring energy storage releases the door to close quickly and automatically and has a certain force to keep the door in place. In this process, we don't want it to close too quickly. If it closes too quickly, the door can hit people or objects in the door opening and closing area under the inertia of closing the door and the force of the spring itself, which is dangerous to the operator. To avoid such problems, hydraulic oil is added to the inside of the floor spring to buffer the inertia of the door closing and the force released by the spring. The speed of the hydraulic oil flow determines how fast the door closes. Adjusting the speed of the hydraulic oil flow can adjust the closing speed.

[0003] The hydraulic floor springs commonly used at present are cast with gray iron or aluminum, and then through precision machining, and then assembled with other parts with relatively high precision and material requirements. The interior is filled with hydraulic oil for closing buffer, and seals are used in many places to prevent hydraulic oil leakage. Because hydraulic oil plays an important role in the work of floor springs, leakage is not allowed. Once it leaks, it is not only environmentally friendly, but also the closing speed of the floor spring will fail. However, due to factors such as machining accuracy, improper use, relative movement wear of parts, looseness of the material, and failure of seals, the hydraulic oil filled inside the floor spring will leak out. Once the hydraulic oil leaks out, the previous hydraulic buffer will fail, and the closing speed will be uncontrolled. In order to prevent the leakage of hydraulic oil, in reality, there are only ways to improve machining accuracy, choose better materials, and increase detection methods. This will increase the manufacturing cost, the defective rate of production is too high, the production process is numerous, and the production cycle is too long. The cost of preventing hydraulic oil leakage and the cost of hydraulic oil itself accounts for a large proportion in the manufacturing of floor springs, and it is also extremely unstable and unreliable.

[0004] Therefore, we propose a method of replacing the internal hydraulic oil with a damping cylinder (or hydraulic rod, hydraulic cylinder, etc.), which can make the floor spring realize the function of controlled door closing without adding hydraulic oil, and achieve the automatic speed-controlled door closing function of the traditional floor spring. Utility Model Content

[0005] The purpose of the utility model is to provide a buffer type oil cylinder split device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a buffer-type oil cylinder split device, comprising a box body, the box body is provided with a cavity, the outer wall of the cavity is fixedly installed with a connecting plate, the cavity is rotatably connected with a cam, the outer wall of the cam is fixedly installed with a heart-shaped blade, a drag plate is slidably arranged inside the cavity, a first pulley is fixedly installed on the outer wall of the drag plate, and a second pulley is arranged outside the heart-shaped blade, the end of the drag plate away from the heart-shaped blade is fixedly installed with a compression spring, the end of the compression spring away from the drag plate is fixedly installed with a floor spring piston, the outer wall of the floor spring piston is fixedly installed with a clamping plate, the end of the floor spring piston away from the floor spring piston is fixedly installed with a damping cylinder, the end of the damping cylinder away from the floor spring piston is fixedly installed with a mounting plate, a chamber is arranged at the distance between the floor spring piston and the damping cylinder, a mounting piece is fixedly installed on the inner wall of the box body, and a panel is fixedly installed on the outer wall of the box body.

[0007] Preferably, the first pulley and the second pulley are symmetrically distributed about the center line of the heart-shaped blade, and the outer wall of the heart-shaped blade is slidably arranged with the outer walls of the first pulley and the second pulley, so as to drive the heart-shaped blade to rotate when the cam rotates, so as to squeeze the first pulley and the second pulley.

[0008] Preferably, the outer wall of the floor spring piston is slidably arranged with the inner wall of the cavity, and the outer wall of the floor spring piston is fixedly installed with the end of the compression spring away from the drag plate, so that when the peach-shaped blade rotates, the first pulley and the second pulley are squeezed, driving the drag plate to slide inside the cavity to squeeze the compression spring.

[0009] Preferably, there are several damping cylinders distributed around the center of the floor spring piston, so as to install a suitable number of damping cylinders according to the weight of the door leaf, so as to achieve the best use effect and save costs.

[0010] Preferably, the drag plate is arranged in a Y shape, and the drag plate is slidably arranged with the inner wall of the cavity. One end of the drag plate away from the peach-shaped blade and the first pulley is fixedly installed with one end of the compression spring, so that the compression spring can be squeezed when the drag plate slides.

[0011] Preferably, there are two clamping plates, which are symmetrically distributed around the center of the floor spring piston and are used to limit the compression and release of the compression spring.

[0012] Preferably, the outer wall of the peach-shaped blade is arranged in an arc shape, and the peach-shaped blade is made of a material with a low friction coefficient, which is used to reduce the friction with the peach-shaped blade when it is squeezed with the first pulley and the second pulley, so as to extend the service life of the peach-shaped blade.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The buffer-type oil cylinder split device needs to buffer the closed door leaf when the door leaf needs to be closed. The door leaf is sleeved with a cam. When the door leaf rotates, the cam is driven to rotate accordingly, so that the cam drives the peach-shaped blade fixedly installed at the bottom to rotate, so that the outer wall of the peach-shaped blade is squeezed with the outer wall of the first pulley and the second pulley, and the squeezed first pulley and second pulley drive the drag plate fixedly installed at the bottom to move accordingly, so that the drag plate slides inside the cavity, and the end of the drag plate away from the peach-shaped blade is squeezed with the compression spring, so as to buffer the closing of the door leaf to achieve a buffering effect.

[0015] 2. For the split-type buffer cylinder device, when the door leaf is closed, the compression spring is squeezed and compressed. As the compression of the compression spring weakens along with the closing speed of the door leaf, the door leaf may collide with the door frame, causing damage to the door leaf. The elastic potential energy generated by the compression spring needs to be buffered. At this time, the compression spring can squeeze the floor spring piston, so that the floor spring piston is squeezed with the damping cylinder under the restriction of the clamping plate. The elastic potential energy generated by the compression spring can be buffered by the damping cylinder. By setting the damping cylinder to replace the traditional hydraulic oil buffer, hydraulic oil leakage can be avoided, and there is no need to prevent internal oil leakage. The processing requirements are simpler, the manufacturing cost is lower, the processing steps are reduced, and the manufacturing cycle is shortened accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional appearance diagram of the structure of the utility model.

[0017] Figure 2 It is a three-dimensional cross-sectional view of the structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the explosion of the structure of the utility model.

[0019] Figure 4 It is a right side cross-sectional view of the structure of the utility model.

[0020] In the figure: 1. box body; 2. cavity; 3. connecting plate; 4. heart-shaped blade; 5. first pulley; 6. second pulley; 7. drag plate; 8. floor spring piston; 9. compression spring; 10. cam; 11. panel; 12. clamping plate; 13. damping cylinder; 14. mounting plate; 15. chamber; 16. mounting part. DETAILED DESCRIPTION

[0021] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A buffer-type oil cylinder split device comprises a box body 1;

[0024] A cavity 2 is opened inside the box body 1, a connecting plate 3 is fixedly installed on the outer wall of the cavity 2, a cam 10 is rotatably connected inside the cavity 2, a heart-shaped blade 4 is fixedly installed on the outer wall of the cam 10, a drag plate 7 is slidably arranged inside the cavity 2, a first pulley 5 is fixedly installed on the outer wall of the drag plate 7, a second pulley 6 is arranged outside the heart-shaped blade 4, a compression spring 9 is fixedly installed on the end of the drag plate 7 away from the heart-shaped blade 4, a floor spring piston 8 is fixedly installed on the end of the compression spring 9 away from the drag plate 7, a clamping plate 12 is fixedly installed on the outer wall of the floor spring piston 8, a damping cylinder 13 is fixedly installed on the end of the floor spring piston 8 away from the floor spring piston 8, a mounting plate 14 is fixedly installed on the end of the damping cylinder 13 away from the floor spring piston 8, a chamber 15 is arranged at the distance between the floor spring piston 8 and the damping cylinder 13, a mounting piece 16 is fixedly installed on the inner wall of the box body 1, and a panel 11 is fixedly installed on the outer wall of the box body 1.

[0025] Working principle: when the door leaf needs to be closed, the closed door leaf needs to be buffered. The door leaf is sleeved with the cam 10. When the door leaf rotates, the cam 10 is driven to rotate accordingly, so that the cam 10 drives the peach-shaped blade 4 fixedly installed at the bottom thereof to rotate, so that the outer wall of the peach-shaped blade 4 is squeezed with the outer wall of the first pulley 5 and the second pulley 6. The squeezed first pulley 5 and the second pulley 6 drive the drag plate 7 fixedly installed at the bottom thereof to move accordingly, so that the drag plate 7 slides inside the cavity 2, and the end of the drag plate 7 away from the peach-shaped blade 4 is squeezed with the compression spring 9, so as to buffer the closing of the door leaf, so as to achieve a buffering effect. When the door leaf is closed, the compression spring 9 is squeezed and Compression: As the compression of the compression spring 9 decreases with the closing speed of the door leaf, the door leaf will collide with the door frame, causing damage to the door leaf. The elastic potential energy generated by the compression spring 9 needs to be buffered. At this time, the compression spring 9 can squeeze the floor spring piston 8, so that the floor spring piston 8 is squeezed with the damping cylinder 13 under the restriction of the clamping plate 12. The elastic potential energy generated by the compression spring 9 can be buffered by the damping cylinder 13. By setting the damping cylinder 13 to replace the traditional hydraulic oil buffer, hydraulic oil leakage can be avoided, and there is no need to prevent internal oil leakage. The processing requirements are simpler, the manufacturing cost is lower, the processing steps are reduced, and the manufacturing cycle is shortened accordingly.

[0026] The first pulley 5 and the second pulley 6 are symmetrically distributed with respect to the center line of the heart blade 4. The outer wall of the heart blade 4 is slidably arranged with the outer wall of the first pulley 5 and the second pulley 6, so that when the cam 10 rotates, the heart blade 4 is driven to rotate accordingly, so as to squeeze the first pulley 5 and the second pulley 6.

[0027] Among them, the outer wall of the floor spring piston 8 is slidably arranged with the inner wall of the cavity 2, and the outer wall of the floor spring piston 8 is fixedly installed with the end of the compression spring 9 away from the drag plate 7. When the peach-shaped blade 4 rotates, the first pulley 5 and the second pulley 6 are squeezed, driving the drag plate 7 to slide inside the cavity 2 to squeeze the compression spring 9.

[0028] There are several damping cylinders 13 distributed around the center of the floor spring piston 8, and a suitable number of damping cylinders 13 are installed according to the weight of the door leaf to achieve the best use effect and save costs.

[0029] Among them, the drag plate 7 is set in a Y shape, and the drag plate 7 is set to slide with the inner wall of the cavity 2. The end of the drag plate 7 away from the peach-shaped blade 4 and the first pulley 5 is fixedly installed with one end of the compression spring 9, so that the compression spring 9 can be squeezed when the drag plate 7 slides.

[0030] There are two clamping plates 12 , which are symmetrically distributed around the center of the floor spring piston 8 and are used to limit the compression spring 9 during compression and release.

[0031] Among them, the outer wall of the heart-shaped blade 4 is set in an arc shape, and the heart-shaped blade 4 is made of a material with a low friction coefficient. It is used to reduce the friction with the heart-shaped blade 4 when it is squeezed with the first pulley 5 and the second pulley 6, so as to extend the service life of the heart-shaped blade 4.

[0032] The above is only an illustrative specific implementation method of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model. It should also be noted that the various components of the utility model are not limited to the above-mentioned overall application. The various technical features described in the specification of the utility model can be selected one by one or multiple ones can be selected and used in combination according to actual needs. Therefore, the utility model should naturally cover other combinations and specific applications related to the utility model points of this case.

Claims

1. A buffer-type oil cylinder split device, comprising a box body (1); The box body (1) has a cavity (2) formed inside, which is characterized by: A connecting plate (3) is fixedly mounted on the outer wall of the cavity (2); a cam (10) is rotatably connected inside the cavity (2); a heart-shaped blade (4) is fixedly mounted on the outer wall of the cam (10); a drag plate (7) is slidably mounted inside the cavity (2); a first pulley (5) is fixedly mounted on the outer wall of the drag plate (7); a second pulley (6) is arranged outside the heart-shaped blade (4); a compression spring (9) is fixedly mounted on one end of the drag plate (7) away from the heart-shaped blade (4); and the compression spring (9) is fixedly mounted on one end of the drag plate (7) away from the heart-shaped blade (4). A floor spring piston (8) is fixedly installed, a clamping plate (12) is fixedly installed on the outer wall of the floor spring piston (8), a damping cylinder (13) is fixedly installed on the end of the floor spring piston (8) away from the floor spring piston (8), a mounting plate (14) is fixedly installed on the end of the damping cylinder (13) away from the floor spring piston (8), a chamber (15) is provided at the distance between the floor spring piston (8) and the damping cylinder (13), a mounting piece (16) is fixedly installed on the inner wall of the box body (1), and a panel (11) is fixedly installed on the outer wall of the box body (1).

2. A buffer type oil cylinder split device according to claim 1, characterized in that: The first pulley (5) and the second pulley (6) are symmetrically distributed about the center line of the heart-shaped blade (4), and the outer wall of the heart-shaped blade (4) is slidably arranged with the outer walls of the first pulley (5) and the second pulley (6).

3. The buffer type oil cylinder split device according to claim 1, characterized in that: The outer wall of the floor spring piston (8) is slidably arranged with the inner wall of the cavity (2), and the outer wall of the floor spring piston (8) is fixedly installed with the end of the compression spring (9) away from the drag plate (7).

4. The buffer type oil cylinder split device according to claim 1, characterized in that: The damping cylinders (13) are in multiple numbers and are distributed around the center of the floor spring piston (8).

5. The buffer type oil cylinder split device according to claim 1, characterized in that: The carriage (7) is arranged in a Y shape, and is slidably arranged with the inner wall of the cavity (2). One end of the carriage (7) away from the heart-shaped blade (4) and the first pulley (5) is fixedly mounted with one end of the compression spring (9).

6. The buffer type oil cylinder split device according to claim 1, characterized in that: There are two clamping plates (12) which are symmetrically distributed around the center of the floor spring piston (8).

7. The buffer type oil cylinder split device according to claim 1, characterized in that: The outer wall of the core blade (4) is arranged in an arc shape, and the core blade (4) is made of a material with a low friction coefficient.

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