Electric ground spring with waterproof function

Abstract

The application is suitable for the field of electric floor spring production, and provides an electric floor spring with waterproof function, which comprises a shell and an end cover, and further comprises: a fixing sleeve is sleeved outside a rotating shaft, a supporting assembly is slidably connected outside the fixing sleeve, a door body rotating seat can be slidably inserted with the rotating shaft, a plurality of sealing plugs are annularly embedded outside the fixing sleeve, and the sealing plugs abut against the supporting assembly; a first sealing ring is annularly arranged on the fixing sleeve, a thrust mechanism is arranged between the fixing sleeve and the supporting assembly, and a ring sleeve is arranged outside the fixing sleeve. The electric floor spring with waterproof function provided by the application is elastically supported by a spring pushing supporting seat on a door body rotating seat, the supporting force on the door body is increased, and the problem of water leakage caused by the extrusion of the fixing sleeve on the end cover is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of electric floor springs, and particularly relates to an electric floor spring with a waterproof function. BACKGROUND

[0002] The electric floor spring is one of the common door closers in the structure of modern automatic doors, and is generally installed on the ground to solve the problem of inconvenient opening of heavy doors.

[0003] The existing waterproof ground spring with good waterproof effect disclosed in CN214786780 is used in cooperation with a sealing ring, a clamping groove, an annular plate, a sealing gasket, a hollow groove, a positioning hole, a positioning rod, a storage groove, a connecting spring, a fixing sleeve, a connecting frame and a sealing ring, solves the problem that the waterproof effect of the existing ground spring is poor, and the liquid on the ground can easily penetrate into the inside of the ground spring, affecting the internal elements, and reducing the service life of the ground spring. The ground spring shaft extends to the top of the upper installation cover through the annular plate, the sealing gasket and the sealing ring in turn, the user moves the two connecting frames upward at the same time, drives the annular plate to move upward, can tightly press the sealing gasket, makes the sealing gasket and the upper installation cover fit more closely, at the same time, the positioning hole on the connecting frame moves upward and aligns with the positioning rod, under the action of the connecting spring, the positioning rod can move outward into the positioning hole, can prevent the connecting frame from moving upward and downward at will, thereby preventing the sealing gasket and the upper installation cover from no longer fitting closely, and realizing sealing installation.

[0004] From the prior art, it can be known that the electric floor spring is generally connected with the door body rotating seat through a rotating shaft, and the rotating shaft penetrates the sealing end cover of the electric floor spring; in real life, whether it is a double-door or a single-door, the center of gravity of the door body generally deviates from the rotating center of the door body, so the rotating shaft of the electric floor spring needs to bear the moment deviating from the center line of the rotating shaft, and in the long-term use process, the rotating shaft laterally extrudes the sealing end cover, so that the sealing gasket and the sealing ring in the upper water scheme are deformed under stress, causing water to seep inward at the electric floor spring rotating shaft, and causing the internal parts of the electric floor spring to rust.

[0005] In order to avoid the above technical problems, it is necessary to provide an electric floor spring with a waterproof function to overcome the defects in the prior art. SUMMARY

[0006] The purpose of the present application is to provide an electric floor spring with a waterproof function, which aims to solve the problem that the existing electric floor spring, in the long-term use process, the rotating shaft laterally extrudes the sealing end cover, so that the sealing gasket and the sealing ring in the upper water scheme are deformed under stress, causing water to seep inward at the electric floor spring rotating shaft.

[0007] The application is achieved, a waterproof electric ground spring, including shell and end cover, the end cover is sealed with shell through bolt connection, the end cover is provided with end hole, the shell is provided with body, the body is provided with rotating shaft, rotating shaft outside and body fixed, and rotating shaft inside is provided with rotatable shaft, the rotating shaft passes through the end hole, further comprising:

[0008] The rotating shaft is provided with a fixed sleeve, the fixed sleeve is externally connected with a support assembly, the support assembly can elastically support the door body rotating seat, the door body rotating seat can be slidably connected with the rotating shaft, a plurality of sealing plugs are annularly embedded on the outer side of the fixed sleeve, and the sealing plugs abut against the support assembly;

[0009] The fixed sleeve is annularly provided with a first sealing ring, and a thrust mechanism is arranged between the fixed sleeve and the support assembly, when the support assembly moves downward, the thrust mechanism can push the first sealing ring to expand;

[0010] The fixed sleeve is provided with a ring sleeve on the outer side, the ring sleeve abuts against the inner end face of the end cover, an adjusting assembly is arranged between the ring sleeve and the fixed sleeve, and the adjusting assembly can adjust the height of the ring sleeve;

[0011] The ring sleeve is provided with a sealing assembly, and the sealing assembly abuts between the fixed sleeve and the inner wall of the end hole.

[0012] Further technical solutions, the sealing assembly comprises a second sealing ring and a sliding seat, the ring sleeve is slidably connected with a plurality of sliding seats, the sliding seats abut against the inner end face of the end cover, the second sealing ring is arranged in the ring sleeve, all the sliding seats abut against the second sealing ring, and the second sealing ring abuts between the fixed sleeve and the inner wall of the end hole.

[0013] Further technical solutions, the adjusting assembly comprises a telescopic rod, an outer cylinder and a threaded rod;

[0014] The telescopic rod is arranged between the ring sleeve and the fixed sleeve, the outer cylinder is rotatably connected with the base of the fixed sleeve, the threaded rod is fixedly connected with the ring sleeve, and the outer cylinder is threadedly connected with the threaded rod.

[0015] Further technical solutions, the support assembly comprises a support seat and a spring, the support seat is slidably connected with the fixed sleeve, and the spring is arranged between the support seat and the fixed sleeve.

[0016] Further technical solutions, the thrust mechanism comprises a piston, a plurality of sliding cavities are arranged in the inner wall of the fixed sleeve, the pistons are slidably connected in the sliding cavities, the pistons are fixedly connected with the inner wall of the support seat, and the first sealing ring is in communication with all the sliding cavities.

[0017] Further, the end face of the sealing plug away from the rotating shaft is a slope, and the slope of the sealing plug is in abutment with the side wall of the supporting seat.

[0018] Further, the outer ring of the supporting seat is provided with a plurality of connecting seats, the supporting seat is fixedly connected with an elastic telescopic sleeve, the elastic telescopic sleeve is connected with a limiting seat, and the limiting seat can be in contact with the end cover.

[0019] Further, the limiting seat is a rubber suction cup.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The electric ground spring with the waterproof function provided by the present application is characterized in that the spring drives the supporting seat to elastically support the door body rotating seat, thereby increasing the support force on the door body, avoiding excessive stress on the rotating shaft, and preventing the rotating shaft from being bent and extruding the fixing sleeve, so as to avoid the problem of water leakage caused by the extrusion of the fixing sleeve on the end cover.

[0022] When the rotating shaft is excessively stressed and is bent to a certain extent, the fixing sleeve extrudes one side of the end hole, and the side wall on one side of the end hole moves downward; at this time, the limiting seat on one side of the end hole is a rubber suction cup, and the limiting seat drives the elastic telescopic sleeve connected therewith to pull, so that the elastic telescopic sleeve provides a reverse pulling force on the side wall on one side of the end hole, thereby reducing the deformation of the side wall on one side of the end hole under the extrusion of the fixing sleeve; meanwhile, the side wall on the other side of the end hole extrudes the corresponding elastic telescopic sleeve upward, the elastic telescopic sleeve pushes the side wall on the other side of the end hole to keep stable, thereby further increasing the structural stability of the end cover under the pressure of the door body, and avoiding water leakage caused by the deformation of the end hole.

[0023] The electric ground spring with the waterproof function provided by the present application is characterized in that the outer cylinder is rotated by hand, the outer cylinder is in threaded transmission with the threaded rod, the threaded rod is telescopic relative to the outer cylinder, the threaded rod drives the ring sleeve, the sliding seat on the ring sleeve is in abutment with the end cover, and the structural stability of the end cover is further increased.

[0024] The electric ground spring with the waterproof function provided by the present application is characterized in that when the supporting seat is contracted under the thrust of the door body, the supporting seat moves downward along the fixing sleeve, and the supporting seat drives all the sealing plugs to abut against the rotating shaft and the end cover, thereby increasing the sealing property between the supporting assembly and the end hole.

[0025] The electric ground spring with the waterproof function provided by the present application is characterized in that when the end cover is deformed under stress, the supporting seat moves downward along the fixing sleeve, and the supporting seat drives the piston to slide in the sliding cavity; at this time, the air pressure in the sliding cavity is increased, the air pressure in the first sealing ring is increased to make the first sealing ring swell, the first sealing ring further fills the gaps between the fixing sleeve and the end hole and between the sealing plug and the end cover, and the sealing property between the fixing sleeve and the end hole is further increased.

[0026] The electric ground spring with waterproof function further comprises a second sealing ring which is sealingly connected between the end hole and the fixing sleeve, when the fixing sleeve extrudes one side of the end hole, one side of the side wall of the end hole moves downward, and the other side of the side wall of the end hole moves upward in the opposite direction under the pushing of the fixing sleeve and a gap is formed, at this time, the one side of the side wall of the end hole extrudes the sliding seat when moving downward, the sliding seat extrudes the second sealing ring, and the second sealing ring fills the gap between the end hole and the fixing sleeve after being stressed, so that the water leakage risk is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present application;

[0028] Figure 2 It is a connection schematic diagram of the door body rotating seat and the end cover;

[0029] Figure 3 It is a half sectional view of the supporting seat;

[0030] Figure 4 It is a front view of Figure 3 ;

[0031] Figure 5 It is an enlarged structural schematic diagram of the A area in Figure 4 ;

[0032] In the drawings: 1, shell; 2, end cover; 3, end hole; 4, body; 5, supporting assembly; 51, supporting seat; 52, spring; 6, thrust mechanism; 61, piston; 62, sliding cavity; 7, adjusting assembly; 71, telescopic rod; 72, outer cylinder; 73, threaded rod; 8, sealing assembly; 81, second sealing ring; 82, sliding seat; 9, limiting seat; 10, rotating shaft; 11, fixing sleeve; 12, door body rotating seat; 13, sealing plug; 14, first sealing ring; 15, ring sleeve; 16, connecting seat; 17, elastic telescopic sleeve. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0034] The specific implementation of the present application is described in detail below in combination with specific examples.

[0035] As Figures 1-5As shown, the electric ground spring provided by the application has a waterproof function, comprising a shell 1 and an end cover 2, the end cover 2 is sealingly connected with the shell 1 through bolts, an end hole 3 is formed in the end cover 2, a body 4 is arranged in the shell 1, a rotating shaft 10 is arranged on the body 4, the rotating shaft 10 is fixed outside the body 4, and a rotatable shaft rod is arranged inside the rotating shaft 10, the rotating shaft 10 penetrates through the end hole 3, and further comprising:

[0036] A fixing sleeve 11 is arranged outside the rotating shaft 10, a supporting assembly 5 is slidingly connected outside the fixing sleeve 11, the supporting assembly 5 can elastically support a door body rotating seat 12, the door body rotating seat 12 can be slidingly inserted with the rotating shaft 10, a plurality of sealing plugs 13 are annularly embedded outside the fixing sleeve 11, the sealing plugs 13 abut against the supporting assembly 5, the end face of the sealing plug 13 away from the rotating shaft 10 is an inclined surface, and the inclined surface of the sealing plug 13 abuts against the side wall of the supporting seat 51;

[0037] A first sealing ring 14 is annularly arranged on the fixing sleeve 11, a thrust mechanism 6 is arranged between the fixing sleeve 11 and the supporting assembly 5, when the supporting assembly 5 moves downward, the thrust mechanism 6 can push the first sealing ring 14 to expand;

[0038] A ring sleeve 15 is arranged outside the fixing sleeve 11, the ring sleeve 15 abuts against the inner end face of the end cover 2, an adjusting assembly 7 is arranged between the ring sleeve 15 and the fixing sleeve 11, and the adjusting assembly 7 can adjust the height of the ring sleeve 15;

[0039] A sealing assembly 8 is arranged in the ring sleeve 15, and the sealing assembly 8 abuts between the fixing sleeve 11 and the inner wall of the end hole 3.

[0040] Working principle:

[0041] The shell 1 is installed in a pre-installed mounting groove, the door body rotating seat 12 is inserted on the rotating shaft 10 to fix the door body, since the center of gravity of the door body deviates from the rotating axis of the rotating shaft 10, the door body has a bending force on the rotating shaft 10;

[0042] The supporting assembly 5 elastically supports the door body rotating seat 12, thereby increasing the support force on the door body, avoiding that the rotating shaft 10 is bent due to excessive stress, and further causing the rotating shaft 10 to extrude the fixing sleeve 11, and then extruding the end cover 2, thereby causing deformation at the end hole 3 and causing water leakage hidden danger;

[0043] Further, when the supporting assembly 5 is contracted under the thrust of the door body, the supporting assembly 5 pushes all the sealing plugs 13 to abut against the rotating shaft 10 and the end cover 2, thereby increasing the sealing property between the supporting assembly 5 and the end hole 3;

[0044] Further, when the support assembly 5 moves downward, the thrust mechanism 6 can push the first sealing ring 14 to expand, and the first sealing ring 14 can further fill the gap between the fixed sleeve 11 and the end hole 3 and between the sealing plug 13 and the end cover 2, thereby further increasing the sealing performance between the fixed sleeve 11 and the end hole 3.

[0045] The adjusting assembly 7 adjusts the height of the ring sleeve 15 to make the ring sleeve 15 abut against the end cover 2, thereby increasing the structural stability of the end cover 2 and avoiding deformation of the end cover 2 under the extrusion of the rotating shaft 10.

[0046] In the embodiment of the present application, as shown in Figure 4 As a preferred embodiment of the present application, the sealing assembly 8 includes a second sealing ring 81 and a sliding seat 82. The ring sleeve 15 is slidingly connected with a plurality of sliding seats 82, the sliding seats 82 abut against the inner end surface of the end cover 2, and the second sealing ring 81 is arranged in the ring sleeve 15 and abuts against all the sliding seats 82 and the inner wall of the end hole 3. The adjusting assembly 7 includes an extension rod 71, an outer cylinder 72 and a threaded rod 73. The extension rod 71 is arranged between the ring sleeve 15 and the fixed sleeve 11, the outer cylinder 72 is rotationally connected with the base of the fixed sleeve 11, and the threaded rod 73 is fixedly connected with the ring sleeve 15 and is threadedly connected with the outer cylinder 72.

[0047] In this scheme, the outer cylinder 72 is rotated by hand, the outer cylinder 72 is threadedly driven with the threaded rod 73, the threaded rod 73 is extended or retracted relative to the outer cylinder 72, the threaded rod 73 pushes the ring sleeve 15, the sliding seats 82 on the ring sleeve 15 abut against the end cover 2, thereby increasing the structural stability of the end cover 2. Further, the second sealing ring 81 is sealingly connected between the end hole 3 and the fixed sleeve 11. When the fixed sleeve 11 extrudes the end hole 3 on one side, the side wall of the end hole 3 on one side moves downward, and the side wall of the end hole 3 on the other side moves upward in the opposite direction under the pushing of the fixed sleeve 11 and generates a gap. At this time, the side wall of the end hole 3 on one side extrudes the sliding seat 82, the sliding seat 82 extrudes the second sealing ring 81, and the second sealing ring 81 fills the gap between the end hole 3 and the fixed sleeve 11 under stress, thereby avoiding the water leakage risk.

[0048] In the embodiment of the present application, as shown in Figure 2 and Figure 4As shown, in a preferred embodiment of the present invention, the support component 5 includes a support base 51 and a spring 52. The support base 51 is slidably and sealed to the fixed sleeve 11, and the spring 52 is disposed between the support base 51 and the fixed sleeve 11. The spring 52 pushes the support base 51 to elastically support the door body rotating seat 12, increasing the supporting force on the door body and preventing the rotating shaft 10 from bending due to excessive force.

[0049] In embodiments of the present invention, such as Figure 5 As shown, in a preferred embodiment of the present invention, the thrust mechanism 6 includes a piston 61, and a plurality of sliding cavities 62 are provided in the inner wall of the fixed sleeve 11. The piston 61 is slidably connected in each of the sliding cavities 62. The piston 61 is fixedly connected to the inner wall of the support seat 51. The first sealing ring 14 is in communication with all the sliding cavities 62. The support seat 51 moves down along the fixed sleeve 11, and the support seat 51 drives the piston 61 to slide in the sliding cavity 62. At this time, the air pressure in the sliding cavity 62 increases, and the air pressure in the first sealing ring 14 increases and expands. The first sealing ring 14 further fills the gap between the fixed sleeve 11 and the end hole 3, and between the sealing plug 13 and the end cap 2, further increasing the sealing performance between the fixed sleeve 11 and the end hole 3.

[0050] In embodiments of the present invention, such as Figure 1 and Figure 2 As shown, in a preferred embodiment of the present invention, the support base 51 is provided with a plurality of connecting seats 16 in an outer ring, the support base 51 is fixedly connected to an elastic telescopic sleeve 17, the elastic telescopic sleeve 17 is connected to a limiting seat 9, the limiting seat 9 can abut against the end cover 2, and the limiting seat 9 is a rubber suction cup.

[0051] In the above scheme, when the fixing sleeve 11 presses against one side of the end hole 3, the side wall of one side of the end hole 3 moves down. At this time, the limiting seat 9 on one side of the end hole 3 is a rubber suction cup. Under the action of the side wall of the end hole 3, the limiting seat 9 pulls the elastic telescopic sleeve 17 connected to it. The elastic telescopic sleeve 17 provides a reverse pulling force on one side of the end hole 3, reducing the deformation of the side wall of the end hole 3 under the pressure of the fixing sleeve 11. At the same time, the side wall of the other side of the end hole 3 presses upward against the corresponding elastic telescopic sleeve 17. The elastic telescopic sleeve 17 pushes the side wall of the other side of the end hole 3 to remain stable, further increasing the structural stability of the end cover 2 under the pressure of the door body and preventing deformation and water seepage at the end hole 3.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0053] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A waterproof electric floor spring, comprising a housing (1) and an end cap (2), wherein the end cap (2) is connected to the housing (1) by bolts, the end cap (2) has an end hole (3), a body (4) is disposed in the housing (1), and a rotating shaft (10) is disposed on the body (4), the rotating shaft (10) passing through the end hole (3), characterized in that, Also includes: The rotating shaft (10) is fitted with a fixed sleeve (11), and a support component (5) is slidably connected to the outside of the fixed sleeve (11). The support component (5) can elastically support the door rotating seat (12). The door rotating seat (12) can be slidably inserted into the rotating shaft (10). A plurality of sealing plugs (13) are annularly fitted to the outside of the fixed sleeve (11). The sealing plugs (13) abut against the support component (5). The fixing sleeve (11) is provided with a first sealing ring (14) in an annular shape. A thrust mechanism (6) is provided between the fixing sleeve (11) and the support assembly (5). When the support assembly (5) moves down, the thrust mechanism (6) can push the first sealing ring (14) to expand. A ring (15) is provided on the outside of the fixed sleeve (11). The ring (15) abuts against the inner end face of the end cap (2). An adjustment component (7) is provided between the ring (15) and the fixed sleeve (11). The adjustment component (7) can adjust the height of the ring (15). A sealing component (8) is provided in the ring sleeve (15), and the sealing component (8) abuts between the fixing sleeve (11) and the inner wall of the end hole (3).

2. The waterproof electric floor spring according to claim 1, characterized in that, The sealing assembly (8) includes a second sealing ring (81) and a sliding seat (82). The ring sleeve (15) is slidably sealed with several sliding seats (82). The sliding seats (82) abut against the inner end face of the end cover (2). The second sealing ring (81) is disposed in the ring sleeve (15). All sliding seats (82) abut against the second sealing ring (81). The second sealing ring (81) abuts between the fixed sleeve (11) and the inner wall of the end hole (3).

3. The waterproof electric floor spring according to claim 1, characterized in that, The adjustment assembly (7) includes a telescopic rod (71), an outer cylinder (72), and a threaded rod (73). A telescopic rod (71) is provided between the ring sleeve (15) and the fixed sleeve (11). The outer cylinder (72) is rotatably connected to the base of the fixed sleeve (11). The threaded rod (73) is fixedly connected to the ring sleeve (15), and the outer cylinder (72) is threadedly connected to the threaded rod (73).

4. The waterproof electric floor spring according to claim 1, characterized in that, The support assembly (5) includes a support base (51) and a spring (52). The support base (51) is slidably and sealed to the fixed sleeve (11), and the spring (52) is disposed between the support base (51) and the fixed sleeve (11).

5. The waterproof electric floor spring according to claim 4, characterized in that, The thrust mechanism (6) includes a piston (61). The inner wall of the fixed sleeve (11) is provided with several sliding cavities (62). The piston (61) is slidably connected in each of the sliding cavities (62). The piston (61) is fixedly connected to the inner wall of the support seat (51). The first sealing ring (14) is connected to all the sliding cavities (62).

6. The waterproof electric floor spring according to claim 4, characterized in that, The end face of the sealing plug (13) facing away from the rotating shaft (10) is inclined, and the inclined surface of the sealing plug (13) abuts against the side wall of the support seat (51).

7. The waterproof electric floor spring according to claim 4, characterized in that, The support base (51) has multiple connecting seats (16) arranged in an outer ring. The support base (51) is fixedly connected to an elastic telescopic sleeve (17). The elastic telescopic sleeve (17) is connected to a limiting seat (9). The limiting seat (9) can contact the end cover (2).

8. The waterproof electric floor spring according to claim 7, characterized in that, The limiting seat (9) is a rubber suction cup.

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