CN202023450U

CN202023450U - Hydraulic damping floor spring

Info

Publication number: CN202023450U
Application number: CN2011200933072U
Authority: CN
Inventors: 邱兆生
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-01
Filing date: 2011-04-01
Publication date: 2011-11-02
Anticipated expiration: 2021-04-01

Abstract

The utility model relates to a hydraulic damping floor spring, which comprises a machine body, a spring, a guide block, a cam, a piston, a damping spring and an upper end cover, wherein the upper end cover is matched with the machined body; oil is filled in the inner cavity of the machine body; the front part of the machine body is provided with a damping oil circuit and a return oil circuit, and the middle part of the machine body is provided with a cam turn trough; the cam is an eudipleural heart cam; the upper part of the cam is fixedly connected with an extension shaft; the lower part of the cam is provided with a bearing; the bearing is embedded in the cam turn trough; the energy storing part of the hydraulic damping floor spring comprises the guide block and the spring and is located at the rear half part of the hydraulic damping floor spring; and the damping part of the hydraulic damping floor spring comprises the piston and the damping spring and is located at the front half part of the hydraulic damping floor spring. The utility model has the beneficial effects that (1) the hydraulic damping floor spring has fewer construction members and low processing cost; (2) the hydraulic damping floor spring has a simple structure and reliable performance and is not easy to damage; and (3) the hydraulic damping floor spring has high tightness and is easy to maintain.

Description

The damping floor spring surges

Technical field

The utility model belongs to a kind of fluid pressure type door closer, and the damping floor spring particularly surges.

Background technology

Floor spring is widely used in the various students at present, and door not only can forward and backwardly respectively be rotated with an angle of 90 degrees, and can automatically revert to zero degree position at closing time, has brought convenience for people's life.But mostly the complex structure member is many for existing floor spring, is fragile on the one hand, on the other hand since floor spring to the having relatively high expectations of sealing, member requires the member precision that matches high more more at most, has increased processing cost, moreover is easy-maintaining not.

The utility model content

At the defective that prior art exists, the utility model provides the damping floor spring that surges, and has obtained useful effect.

In order to solve the problems of the technologies described above, the damping floor spring that surges of the present utility model, comprise body, spring, guide block, cam, piston, damping spring and upper end cover, upper end cover cooperates with body, be full of oil in the described body inner chamber, there are damping oil circuit and oil return circuit in the front portion of body, and there is the cam turn trough at the middle part; Described cam is symmetrical heart-shaped cam, and top is connected with the extension axle, and the bottom is equipped with bearing, and bearing is embedded in the cam turn trough; The energy storage section that described guide block and spring have been formed this device is positioned at the latter half of of this device; The damping portion that described piston and damping spring have been formed this device is positioned at the first half of this device.

On the basis of technique scheme, on described guide block and the piston runner is arranged, three or four locating slots are arranged on the described cam, so can be convenient to the location of cam.

Further again, the bisector of the runner on the described guide block and formed line of the runner on the piston and cam top and the bottom coincides, the purpose of this design is to make a power that is subjected to that connects cam be always radial load rather than be subjected to radial load and twisting resistance simultaneously, so can improve anti-damage property.

The damping floor spring that surges of the present utility model has an one way valve in the described oil return circuit.

The damping floor spring that surges of the present utility model has a flow speed control valve on the described damping oil circuit, the purpose of this design is to use the family can regulate at closing time speed as required.

The damping floor spring that surges of the present utility model, described spring is at least one, safeguards more conveniently in the time of piece, and many then can make guide block stressed more even.

Operating principle is: when being subjected to the external force door leaf and opening, the extension axle drives heart-shaped cam and rotates the rotation drive guide block compression spring energy-storage of cam simultaneously, after external force disappears, the energy of spring discharges, the guide block actuating cam realizes closing the door action, simultaneously because the effect of the damping portion of this device front portion is the process of a deceleration at closing time.

The beneficial effects of the utility model are: the few processing cost of (1) member is low; (2) simple in structure, dependable performance, not fragile; (3) good airproof performance, easy care.

Description of drawings

The utility model has following accompanying drawing:

Fig. 1 is the vertical view of embodiment 1

Fig. 2 is that the A-A of Fig. 1 is to sectional view

Fig. 3 is the close the door top plan view of state of embodiment 1

Fig. 4 is the top plan view of embodiment 1 door opening state

Fig. 5 is the vertical view of body among the embodiment 1

Fig. 6 is that the B-B of Fig. 5 is to sectional view

Fig. 7 is the cross section view of overlooking of body among the embodiment 1

Fig. 8 is the vertical view of upper end cover among the embodiment 1

Fig. 9 is the top plan view of embodiment 2

Among the figure: 1, body, 2, spring, 3, guide block, 4, cam, 5, flow speed control valve, 6, piston, 7, damping spring, 8, upper end cover, 1-1, cam turn trough, 1-2, damping oil circuit, 1-3, oil return circuit, 4-1, locating slot.

The specific embodiment

Embodiment 1

Below in conjunction with accompanying drawing present embodiment is described in further detail.

Comprise body 1, spring 2, guide block 3, cam 4, piston 6, damping spring 7 and upper end cover 8 as Fig. 1 to the damping floor spring that surges of present embodiment shown in Figure 9, upper end cover 8 cooperates with body 1, be full of oil in described body 1 inner chamber, there are damping oil circuit 1-2 and oil return circuit 1-3 in the front portion of body 1, and there is cam turn trough 1-1 at the middle part; Described cam 4 is symmetrical heart-shaped cam, and top is connected with the extension axle, and the bottom is equipped with bearing, and bearing is embedded among the cam turn trough 1-1; The energy storage section that described guide block 3 and spring 2 have been formed this device is positioned at the latter half of of this device; The damping portion that described piston 6 and damping spring 7 have been formed this device is positioned at the first half of this device.

The damping floor spring that surges of present embodiment has runner on described guide block 3 and the piston 6 as shown in Figure 3, and three locating slot 4-1 are arranged on the described cam 4.

On the basis of technique scheme, the bisector of the runner on the described guide block 3 and formed line of runner on the piston 6 and cam 4 top and the bottom coincides.

Further scheme has an one way valve among the described oil return circuit 1-3.

Further again, on the described damping oil circuit 1-2 flow speed control valve 5 is arranged.

The damping floor spring that surges of present embodiment, described spring 2 is two.

Concrete operating principle:

One, this device is in original state as shown in Figure 3, after applying an external force, cam 4 begins to rotate, move behind the guide block 3, spring 1 is compressed and carries out energy storage, simultaneously the fluid in the big chamber before the piston 6 enters in the loculus behind the piston 6 by oil return circuit 1-3, stops as shown in Figure 4 after cam 4 revolves and turn 90 degrees, and the runner on the guide block 3 is stuck among the locating slot 4-1 of cam 4.

Two, apply an external force slightly after, cam 4 beginning backwards rotation, the dispensing of spring 1 energy stored, guide block 3 reach no longer needs to apply any external force this moment, and this device just can be realized the action of closing the door, simultaneously because the effect of the damping portion of this device front portion, at closing time is the process of a deceleration, accidents such as the people that can not damage, and the user can be as required by regulating the speed that flow speed control valve 5 is regulated at closing time in addition.

Embodiment 2

As shown in Figure 9, the damping floor spring that surges of present embodiment, described spring 2 is one, other structure and using method and embodiment 1 basically identical.

The utility model is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the present utility model.

Claims

1. the damping floor spring that surges comprises body (1), spring (2), guide block (3), cam (4), piston (6), damping spring (7) and upper end cover (8), upper end cover (8) cooperates with body (1), it is characterized in that: be full of oil in described body (1) inner chamber, there are damping oil circuit (1-2) and oil return circuit (1-3) in the front portion of body (1), and there is cam turn trough (1-1) at the middle part; Described cam (4) is symmetrical heart-shaped cam, and top is connected with the extension axle, and the bottom is equipped with bearing, and bearing is embedded in the cam turn trough (1-1); The energy storage section that described guide block (3) and spring (2) have been formed this device is positioned at the latter half of of this device; The damping portion that described piston (6) and damping spring (7) have been formed this device is positioned at the first half of this device.

2. the damping floor spring that surges according to claim 1 has runner on described guide block (3) and the piston (6), and three or four locating slots (4-1) are arranged on the described cam (4).

3. the damping floor spring that surges according to claim 2, the bisector of formed line of runner on runner on the described guide block (3) and the piston (6) and cam (4) top and the bottom coincides.

4. the damping floor spring that surges according to claim 1 has an one way valve in the described oil return circuit (1-3).

5. the damping floor spring that surges according to claim 1 has a flow speed control valve (5) on the described damping oil circuit (1-2).

6. the damping floor spring that surges according to claim 1, described spring (2) is at least one.