Piston with buffering function

Abstract

The utility model relates to the field of door body mounting parts, in particular to a piston with a buffering function, and adopts the technical scheme that the piston comprises a piston body, a cavity is formed in the piston body, a buffering cavity communicated with the cavity is formed in the piston body, a buffering piece is arranged in the buffering cavity, the buffering cavity is located at the sealed end of the cavity, and the buffering piece is arranged in the buffering cavity. The buffering piece comprises an elastic piece arranged in the buffering cavity and a buffering block arranged at the end, close to the cavity, of the elastic piece. The floor spring has the effects that the possibility of hydraulic oil leakage is reduced, the piston buffering effect is improved, and then the service life of the floor spring is prolonged.

Description

Technical Field

[0001] This application relates to the field of door mounting components, and more particularly to a piston with a buffer function. Background Technology

[0002] Glass doors are installed on the building structure using door clamps. To prevent excessive force from causing the glass door to slam against the frame and break when opened, existing glass doors are equipped with floor springs. These springs slow down the door's movement and prevent impact damage from rapid opening or closing. Most existing floor springs use hydraulic damping technology. When the door opens, the door moves the door clamp rod, causing the guide shaft to rotate, driving the clamping plates and the connecting rod. During the movement of the connecting rod, the spring is compressed, and the hydraulic oil in the upper chamber is also pressurized. The one-way valve ball inside the piston opens under hydraulic pressure, and the hydraulic oil in the upper chamber flows into the lower chamber through the one-way valve channel. When the opening process is complete, the elastic potential energy accumulated by the spring during opening is released, pushing the plunger to the left, which in turn drives the transmission gear and the door closer connecting rod to rotate, closing the door.

[0003] The existing hydraulic oil flow acts as a buffer. However, when the door opens or closes slowly, external force may force the door to continue moving. This causes the hydraulic oil to flow at an accelerated rate, which can easily lead to leakage. Over time, this can cause the stability of the floor spring structure to deteriorate, affecting its usability. Utility Model Content

[0004] In order to improve the cushioning effect of the floor spring and enhance its structural stability during use, this application provides a piston with a cushioning function.

[0005] This application provides a piston with a buffer function, which adopts the following technical solution:

[0006] A piston with a buffer function includes a piston body, a chamber inside the piston body, a buffer cavity communicating with the chamber inside the piston body, a buffer element inside the buffer cavity, the buffer cavity being located at the sealed end of the chamber, and the buffer element including an elastic element disposed inside the buffer cavity and a buffer block disposed at one end of the elastic element near the chamber.

[0007] By adopting the above technical solution, the buffer chamber provides a buffer space for the hydraulic oil, the buffer component is used to ensure that the buffer chamber is in a closed state under the normal state of the floor spring, and the elastic component is used to drive the buffer block into the buffer chamber when the buffer block is under pressure, thereby providing a buffer space for the hydraulic oil and reducing the possibility of hydraulic oil leakage.

[0008] Preferably, the buffer block has a positioning groove on the side facing the elastic member for positioning the end of the elastic member.

[0009] By adopting the above technical solution, the positioning groove improves the connection stability between the elastic element and the buffer block.

[0010] Preferably, the corner of the buffer block at the end away from the elastic element is sloping.

[0011] By adopting the above technical solution, the slope shape facilitates the contact and compression of the buffer block by subsequent hydraulic oil.

[0012] Preferably, the piston body is provided with a positioning element for positioning the buffer block, the positioning element is located inside the buffer cavity, and the positioning element is located between the buffer element and the cavity.

[0013] By adopting the above technical solution, the positioning component improves the stability of the buffer component in the buffer cavity and effectively prevents the elastic component from directly squeezing the buffer block out of the buffer cavity, thus affecting the buffering effect of the buffer cavity.

[0014] Preferably, the piston body has an embedding groove along the inner wall of the buffer cavity, and the side of the positioning member facing the piston body is located in the embedding groove.

[0015] By adopting the above technical solution, the embedded groove improves the stability of the positioning component on the piston body.

[0016] Preferably, the positioning element is arc-shaped, and the inner diameter of the positioning element is smaller than the outer diameter of the buffer block.

[0017] By adopting the above technical solution, the positioning component is arc-shaped, which makes it easy for the positioning component to be installed in the embedded groove. The inner diameter of the positioning component is smaller than the outer diameter of the buffer block, which makes it easy for the positioning component to position the buffer block and prevent the buffer block from leaving the buffer cavity.

[0018] Preferably, one end of the positioning member is provided with a positioning part one, and the other end of the positioning member is provided with a positioning part two.

[0019] By adopting the above technical solutions, positioning part one and positioning part two improve the stability of the positioning component.

[0020] Preferably, the sidewall of the buffer block has an annular groove.

[0021] By adopting the above technical solution, the annular groove facilitates the movement of the buffer block within the buffer cavity.

[0022] In summary, the buffer chamber provides a buffer space for the piston body, effectively reducing the possibility of hydraulic oil leakage due to external pressure; the buffer component is used to control the opening of the buffer chamber, ensuring the stability of the piston body under normal conditions, while improving the buffering effect of the piston body and enhancing its practicality. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the structure of a piston with a buffer function according to this application. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of a piston with a buffer function according to this application. Figure 2 ;

[0025] Figure 3 This is a cross-sectional view of a piston with a buffer function according to this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Piston body; 2. Chamber; 3. Buffer chamber; 4. Buffer component; 41. Elastic component; 42. Buffer block; 5. Positioning groove; 6. Positioning component; 7. Embedded groove; 8. Positioning part one; 9. Positioning part two; 10. Annular groove. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0028] This application discloses a piston with a buffer function. (Refer to...) Figure 1 , Figure 2 and Figure 3 The system includes a piston body 1, with a chamber 2 inside for hydraulic oil to flow through. A buffer chamber 3 is also inside the piston body 1, communicating with the chamber 2. A buffer element 4 is mounted on the piston body 1 to control the communication range between the buffer chamber 3 and the chamber 2. One end of the chamber 2 is open, and the other end is sealed. The buffer chamber 3 is located at the sealed end of the chamber 2 to facilitate the containment of hydraulic oil. The buffer element 4 includes an elastic element 41 installed within the buffer chamber 3 and a buffer block 42 installed near the end of the elastic element 41 close to the chamber 2. When the door spring is slowly closing, it is subjected to excess external force. When the hydraulic oil is compressed, it causes the buffer block 42 to compress the elastic element 41. The compression of the elastic element 41 causes the buffer block 42 to enter the buffer chamber 3, creating space within the buffer chamber 3 for the hydraulic oil to buffer.

[0029] Reference Figure 2 and Figure 3 To improve the stability between the elastic element 41 and the buffer block 42, a positioning groove 5 for positioning the end of the elastic element 41 is provided on the side of the buffer block 42 facing the elastic element 41. One end of the elastic element 41 is connected to the piston body 1, and the other end of the elastic element 41 is connected to the buffer block 42. When the buffer block 42 is subjected to pressure, it will squeeze the elastic element 41, causing the elastic element 41 to deform under pressure. After the external pressure is eliminated, the elastic element 41 will drive the buffer block 42 to return to its original position. In this embodiment, the elastic element 41 is preferably a spring.

[0030] Reference Figure 2 and Figure 3The corner of the buffer block 42 away from the elastic member 41 is sloping, which facilitates the movement of the buffer block 42 by hydraulic oil. The side wall of the buffer block 42 is provided with an annular groove 10, which facilitates the movement of the buffer block 42 in the buffer cavity 3.

[0031] Reference Figure 2 and Figure 3 To improve the stability of the buffer block 42 within the buffer cavity 3, a positioning element 6 is provided on the piston body 1. The positioning element 6 is located at the end of the buffer cavity 3 near the chamber 2, between the buffer member 4 and the chamber 2, effectively preventing the elastic member 41 from directly driving the buffer block 42 out of the buffer cavity 3. An embedding groove 7 is formed along the inner wall of the buffer cavity 3 on the piston body 1, and the side of the positioning element 6 that contacts the piston body 1 is located within the embedding groove 7. The positioning element 6 is arc-shaped, with a positioning part 1 8 fixed at one end and a positioning part 2 9 fixed at the other end. In this embodiment, the positioning part 1 8 and the positioning part 2 9 are integrally formed with the positioning element 6, improving the stability of the positioning element 6 structure. The inner diameter of the positioning element 6 is smaller than the outer diameter of the buffer block 42, facilitating the positioning and blocking of the buffer block 42 by the positioning element 6.

[0032] The implementation principle of a piston with a buffer function in this application embodiment is as follows: When the hydraulic oil moves slowly and normally, the buffer block 42 is in its normal state. When the hydraulic oil is compressed and flows rapidly under pressure, the pressure drives the buffer block 42 to move towards the interior of the buffer chamber 3, and the compression causes the elastic element 41 to compress. At this time, the buffer chamber 3 is exposed, providing a buffer space for the hydraulic oil and preventing hydraulic oil leakage. When the hydraulic oil returns to its normal state, the elastic element 41 drives the buffer block 42 to move and reset.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A piston with a buffer function, characterized in that: The piston body (1) includes a piston body (1), a chamber (2) is provided inside the piston body (1), a buffer chamber (3) communicating with the chamber (2) is provided inside the piston body (1), a buffer member (4) is provided inside the buffer chamber (3), the buffer chamber (3) is located at the sealed end of the chamber (2), and the buffer member (4) includes an elastic member (41) provided inside the buffer chamber (3) and a buffer block (42) provided at the end of the elastic member (41) near the chamber (2).

2. A piston with a buffer function according to claim 1, characterized in that: The buffer block (42) has a positioning groove (5) on the side facing the elastic member (41) for positioning the end of the elastic member (41).

3. A piston with a buffer function according to claim 1, characterized in that: The corner of the buffer block (42) away from the elastic member (41) is sloping.

4. A piston with a buffer function according to claim 1, characterized in that: The piston body (1) is provided with a positioning element (6) for positioning the buffer block (42). The positioning element (6) is located in the buffer cavity (3) and between the buffer element (4) and the cavity (2).

5. A piston with a buffer function according to claim 4, characterized in that: The piston body (1) has an embedding groove (7) along the inner wall of the buffer cavity (3), and the positioning member (6) is located in the embedding groove (7) on the side facing the piston body (1).

6. A piston with a buffer function according to claim 4, characterized in that: The positioning element (6) is arc-shaped, and the inner diameter of the positioning element (6) is smaller than the outer diameter of the buffer block (42).

7. A piston with a buffer function according to claim 4, characterized in that: One end of the positioning member (6) is provided with a positioning part one (8), and the other end of the positioning member (6) is provided with a positioning part two (9).

8. A piston with a buffer function according to claim 1, characterized in that: The buffer block (42) has an annular groove (10) on its side wall.

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