Middle pipe lifting air rod

Abstract

A middle pipe lifting air rod is used for solving the problems that in the prior art, an air rod in the prior art mainly supports a seat through a telescopic rod of the air rod, but due to the fact that the gravity center of the body of a passenger cannot be located in the center of the seat for a long time, after the gravity center of the passenger is changed, the air rod is uneven in stress, the supporting performance of the air rod is reduced, and the safety of the passenger is affected. The air rod comprises an air rod body and a telescopic rod, the telescopic rod is arranged in the air rod body in a sliding mode, the top of the telescopic rod is vertically upward and stretches out of the air rod body, a mounting plate is fixedly arranged at the top of the telescopic rod, and four screw rods which are parallel to the telescopic rod and are evenly distributed in the circumferential direction with the telescopic rod as the axis are fixedly arranged on the mounting plate; a mounting ring is arranged on the outer wall of the gas rod body and abuts against the side wall of the gas rod body, four penetrating holes are formed in the mounting ring, the four screw rods slidably penetrate through the four penetrating holes in a one-to-one correspondence mode, and four locking assemblies used for locking the screw rods to prevent the screw rods from vertically moving are arranged on the mounting ring.

Description

Technical Field

[0001] The utility model relates to the technical field of gas rods, in particular to a mid-tube elevated gas rod. Background Art

[0002] The gas spring is a novel elastic element that can perform functions such as support, cushioning, braking, height adjustment and angle adjustment. It is a closed cylinder filled with gas with a certain pressure, and the pressure acting on the piston rod or piston cross section is used to make the gas spring generate thrust or tension.

[0003] The gas rod of the prior art, such as the utility model patent document with authorization announcement number "CN220442260U" and patent name "A lifting gas rod", discloses a gas rod, including a gas rod body and an outer sleeve, the outer sleeve is arranged on the outside of the gas rod body, and a guide mechanism is provided between the outer sleeve and the gas rod body, and the guide mechanism is fixedly connected to the outer sleeve, and the circumferential movement of the outer tube is limited by the mutual cooperation between the guide mechanism and the outer tube outer wall of the gas rod body. The lifting gas rod proposed in the utility model is provided with a guide mechanism between the outer sleeve and the outer tube, and the balls in the guide mechanism cooperate with the outer tube grooves on the outer tube to prevent the outer tube from rotating. During the operation of the gas rod, the balls in the guide mechanism can roll, and the gap between the balls and the outer tube is small, which ensures that the gas rod can run smoothly. The traditional sliding friction is replaced by rolling friction, and the friction between the two is small, which effectively ensures the smoothness of the outer tube sleeve and the outer tube during movement.

[0004] During use of the gas rod of the above-mentioned patent, the support for the seat is mainly provided by the telescopic rod of the gas rod. However, since the center of gravity of the passenger's body cannot be in the center of the seat for a long time, when the center of gravity of the user changes, the gas rod is unevenly stressed and the supporting performance of the gas rod is reduced, resulting in poor stability of the seat. Utility Model Content

[0005] The purpose of the present utility model is to address the deficiencies of the existing technology and propose a mid-tube lifting gas rod to solve the technical problem mentioned in the background technology that the gas rod of the existing technology mainly supports the seat by using the telescopic rod of the gas rod, but since the center of gravity of the passenger's body cannot be in the center of the seat for a long time, when the center of gravity of the user changes, the gas rod is unevenly stressed and the supporting performance of the gas rod is reduced, resulting in poor stability of the seat.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A mid-tube lifting gas rod comprises a gas rod body and a telescopic rod, the telescopic rod being slidably arranged in the gas rod body, the top of the telescopic rod being vertically upward and extending out of the gas rod body, a mounting plate being fixed to the top of the telescopic rod, four screws being parallel to the telescopic rod and evenly distributed circumferentially with the telescopic rod as the axis being fixed to the mounting plate, a mounting ring being provided on the outer wall of the gas rod body and the mounting ring being in contact with the side wall of the gas rod body, four through-holes being opened on the mounting ring, the four screws being respectively slid through the four through-holes in a one-to-one manner, and four locking components being provided on the mounting ring for locking the screws to prevent the screws from moving vertically.

[0008] Working principle:

[0009] First, the operator installs the telescopic rod and mounting plate on the gas rod body at the bottom of the seat seat. When the user needs to adjust the seat height through the gas rod body, he first releases the lock of the screw by the locking assembly. When the user adjusts the seat height to the appropriate height, the user can lock the screw through the locking assembly to prevent the screw from moving vertically and provide certain support to the mounting plate through the locking between the screw and the locking assembly, thereby expanding the supporting area of the mounting plate on the bottom of the seat.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] First, a screw and a locking assembly are provided, and locking of the screw by the locking assembly can provide a certain supporting force for the mounting plate, thereby expanding the supporting area of the mounting plate.

[0012] Secondly, a gas rod body is provided, through which the vertical height of the seat can be adjusted, making it convenient for users to adjust the height of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0014] Figure 2 Schematic diagram of the cross-sectional structure of the mounting plate and the screw;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure enlarged in the middle;

[0016] Figure 4 for Figure 1 Schematic diagram of the structure enlarged at point B.

[0017] Explanation of the accompanying drawings: gas rod body 1, telescopic rod 2, mounting plate 3, screw 4, mounting ring 5, through hole 6, sliding block 7, abutment block 8, first bolt 9, sliding groove 10, external thread 11, sliding groove 12, slider 13, bearing 14, fixing block 15, threaded hole 16, second bolt 17, rubber block 18. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0019] Example:

[0020] like Figure 1 and Figure 3 As shown, a mid-tube lifting gas rod includes a gas rod body 1 and a telescopic rod 2. The telescopic rod 2 is slidably arranged in the gas rod body 1. The top of the telescopic rod 2 is vertically upward and extends out of the gas rod body 1. A mounting plate 3 is fixed to the top of the telescopic rod 2. First, the installer installs the telescopic rod 2 and the mounting plate 3 on the bottom of the seat seat. The vertical height of the seat can be adjusted by the telescopic rod 2. A mounting ring 5 is provided on the outer wall of the gas rod body 1 and the mounting ring 5 abuts against the side wall of the gas rod body 1. A rubber block 18 is fixed on the inner wall of the mounting ring 5 and the rubber block 18 abuts against the gas rod body 1. The friction between the mounting ring 5 and the gas rod body 1 can be increased by the rubber block 18.

[0021] Four screws 4 are fixed on the mounting plate 3, which are parallel to the telescopic rod 2 and evenly distributed circumferentially with the telescopic rod 2 as the axis. Four through-holes 6 are provided on the mounting ring 5. The four screws 4 slide through the four through-holes 6 one by one. The through-holes 6 can facilitate the vertical movement of the screws 4 on the mounting ring 5. The mounting ring 5 is provided with four locking components for locking the screws 4 to prevent the screws 4 from moving vertically. The locking component includes a sliding block 7, an abutment block 8 and a first bolt 9. A sliding groove 10 is provided on the mounting ring 5. The sliding block 7 is slidably arranged in the sliding groove 10. The abutment block 8 is slidably arranged on the sliding block 7 and an external thread 11 is provided on one side of the abutment block 8. The external thread 11 is threadedly connected to the side wall of the screw 4. By moving the sliding block 7, the abutment block 8 is driven to move toward the side wall of the screw 4. The external thread 11 on the outer wall of the abutment block 8 can abut against the thread on the screw 4, thereby limiting the vertical movement of the screw 4. The first bolt 9 is threaded through the mounting ring 5 and the end of the first bolt 9 is rotatably connected to the sliding block 7. A bearing 14 is fixed on the sliding block 7. The end of the first bolt 9 is passed through the center of the bearing 14. The movement of the sliding block 7 can be driven by rotating the first bolt 9, and the first bolt 9 is connected to the internal thread of the mounting ring 5 to prevent the movement of the first bolt 9. A sliding groove 12 is provided on the sliding block 7, and a slider 13 is provided for sliding in the sliding groove 12. The abutment block 8 is fixed on the slider 13, and the sliding direction of the slider 13 is perpendicular to the sliding direction of the sliding block 7. The vertical movement of the slider 13 drives the vertical movement of the abutment block 8, which facilitates the abutment of the external thread 11 on the abutment block 8 with the thread on the screw 4.

[0022] Several screw rods 4 are provided with fixing blocks 15 at the ends away from the mounting plate 3, and several screw rods 4 are provided with threaded holes 16 along the axis. A second bolt 17 is slidably penetrated on each fixing block 15, and each second bolt 17 passes through the corresponding fixing block 15 and is threadedly connected with the corresponding threaded hole 16. The position of the fixing block 15 can be limited by the threaded connection between the second bolt 17 and the threaded hole 16, so that when the telescopic rod 2 is damaged and violently impacted, the external thread 11 on the abutment block 8 and the screw rod 4 can limit the vertical movement of the screw rod 4, and the fixing block 15 can further limit the vertical movement range of the screw rod 4.

[0023] Working principle:

[0024] When the user's seat weight is not in the center of the seat, the abutment between the screw rod 4 and the abutment block 8 is provided to the mounting plate 3 to prevent damage to the telescopic end of the gas rod. Finally, the second bolt 17 is matched with the threaded hole 16 to fix the fixing block 15 between the screw 4 and the second bolt 17.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A mid-tube raised gas rod, characterized in that: The utility model comprises a gas rod body (1) and a telescopic rod (2), wherein the telescopic rod (2) is slidably arranged in the gas rod body (1), the top of the telescopic rod (2) is vertically upward and extends out of the gas rod body (1), a mounting plate (3) is fixed on the top of the telescopic rod (2), four screw rods (4) are fixed on the mounting plate (3), and the screw rods (4) are parallel to the telescopic rod (2) and are evenly distributed circumferentially with the telescopic rod as the axis, a mounting ring (5) is provided on the outer wall of the gas rod body (1), and the mounting ring (5) abuts against the side wall of the gas rod body (1), and four through-holes (6) are opened on the mounting ring (5), and the four screw rods (4) slide through the four through-holes (6) in a one-to-one corresponding manner, and four locking components are provided on the mounting ring for locking the screw rods (4) to prevent the screw rods (4) from moving vertically.

2. The mid-tube raised gas rod according to claim 1, characterized in that: The locking assembly comprises a sliding block (7), an abutting block (8) and a first bolt (9); a sliding groove (10) is provided on the mounting ring (5); the sliding block (7) is slidably arranged in the sliding groove (10); the abutting block (8) is slidably arranged on the sliding block (7) and an external thread (11) is provided on one side of the abutting block (8); the external thread (11) is threadedly connected to the side wall of the screw rod (4); the first bolt (9) is threadedly passed through the mounting ring (5) and the end of the first bolt (9) is rotatably connected to the sliding block (7).

3. The mid-tube raised gas rod according to claim 2, characterized in that: The sliding block (7) is provided with a sliding groove (12), a sliding block (13) is slidably provided in the sliding groove (12), the abutting block (8) is fixed on the sliding block (13), and the sliding direction of the sliding block (13) is perpendicular to the sliding direction of the sliding block (7).

4. The mid-tube raised gas rod according to claim 2, characterized in that: A bearing (14) is fixedly provided on the sliding block (7), and the end of the first bolt (9) is passed through the center of the bearing (14).

5. The mid-tube raised gas rod according to claim 1, characterized in that: A plurality of the screw rods (4) are provided with a fixing block (15) at the end away from the mounting plate (3), and a plurality of the screw rods (4) are provided with a threaded hole (16) along the axis. A second bolt (17) is slidably passed through each of the fixing blocks (15), and each of the second bolts (17) passes through the corresponding fixing block (15) and is threadedly connected to the corresponding threaded hole (16).

6. The mid-tube raised gas rod according to claim 1, characterized in that: A rubber block (18) is fixedly provided on the inner wall of the mounting ring (5), and the rubber block (18) abuts against the gas rod body (1).

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