CN104675799A - Self-locking support rod - Google Patents
Self-locking support rod Download PDFInfo
- Publication number
- CN104675799A CN104675799A CN201510110720.8A CN201510110720A CN104675799A CN 104675799 A CN104675799 A CN 104675799A CN 201510110720 A CN201510110720 A CN 201510110720A CN 104675799 A CN104675799 A CN 104675799A
- Authority
- CN
- China
- Prior art keywords
- piston
- joint
- self
- steel ball
- cylinder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a self-locking support rod, which comprises a piston body, a support rod cylinder block, a left piston joint, a control piston, a right piston joint, a moving joint, a push rod, a reset spring, a steel ball bracket and a set of steel balls, wherein the support rod cylinder block sheathes the piston body; from the outer outline, the steel ball bracket is provided with a pawl-shaped self-locking cavity; the steel balls are put in the self-locking cavity; a moving pressing sleeve is arranged in the steel ball bracket; the outer edge of the moving pressing sleeve is elastically matched with the inner wall of the support rod cylinder block. The self-locking support rod disclosed by the invention is convenient in use; the support rod cylinder block can freely stretch out and draw back only by pressing a control button, and when the button is released, the self-locking function of the piston body on the support rod cylinder block can be realized; such an operating mode is very simple; moreover, the whole support rod is high in working stability, is safe and reliable, and is worthy of being widely popularized.
Description
Technical field
The present invention relates to a kind of self-locking support bar.
Background technique
At present, in fire life-saving equipment, usually need to use support telescopic external member or support telescopic bar as support equipment, but support telescopic external member or support telescopic bar are when strut stretches out use, strut after mainly needing additionally operational lock structure to carry out locking stretching after reaching certain length, such design operation gets up cumbersome, and it is long once length, manual operation possibly cannot operate locking structure, there is very large narrow limitation, the needs of modern fire equipment cannot be met.
Summary of the invention
The present invention, in order to solve the above-mentioned deficiency of prior art, proposes a kind of self-locking support bar.
In order to solve the problems of the technologies described above, the present invention by the following technical solutions: a kind of self-locking support bar, comprises piston only and is set in strut cylinder body on piston only; One end of described piston only is provided with left piston joint, the radial control knob installed and the control piston axially installed are installed in described left piston joint, the end of this control knob is arranged with button spring, described control knob and control piston are that criss-crossing is installed, and the contact position that is upper and control piston of leaning to one side of control knob is a rake, described control piston is provided with the oblique nibs of the described rake of coupling, coordinating and then ejecting control piston forward by rake and oblique nibs when described control knob presses down; The described piston only the other end is provided with right piston joint, is provided with a movable joint in described right piston joint, and described movable joint is by push rod connection control piston, and the inside of movable joint is provided with Returnning spring; The outer end of described right piston joint is arranged with annular steel ball bracket and inserts the inside of described strut cylinder body, one group of steel ball is provided with in gap between described steel ball bracket and described strut cylinder body, the exterior contour of this steel ball bracket has runcinate self-locking chamber, and described steel ball is inserted in described self-locking chamber; The inside of described steel ball bracket is provided with movable gland, the outer rim of described movable gland and the inwall resilient engagement of described strut cylinder body.
Further, the outer end of described left piston joint is also provided with supported joint.
Further, described strut cylinder body is connected to the outside of piston only by attachment cap, and described attachment cap is inner is provided with QY RunddichtringO with the contact position of piston only, and the joint of described strut cylinder body and attachment cap is provided with O RunddichtringO.
Further, the front end of described strut cylinder body is provided with cylinder joint.
Further, the middle part of described movable gland is provided with the spring pull bar running through self, and the front end of described spring pull bar is connected to the outer end of described right piston joint.
Compared with prior art, the present invention is easy to use, only needing to pin control knob just can telescopic supporting rod cylinder body freely, and when decontroling button, can realize the auto-lock function of piston only to shoring cylinder body, such mode of operation is very simple, and the good operating stability of whole strut, safe and reliable, be worth significantly promoting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged view at a-a place of the present invention.
Embodiment
Below in conjunction with drawings and Examples, invention is described in detail.
As shown in Figure 1, 2, the self-locking support bar that the present invention proposes, the strut cylinder body 2 comprising piston only 1 and be set on piston only 1; The length of piston only 1 is substantially identical with the length of strut cylinder body 2, and the cylinder inner circle of strut cylinder body 2 can accommodate the cylindrical of piston only 1 just.
The left end of piston only 1 is provided with left piston joint 3, the left end (outer end) of left piston joint 3 is a circle structure, periphery, outer end arranges and is provided with a supported joint 16, and the Main Function of supported joint 16 whole self-locking support bar can be facilitated to be connected with other device use.
The left end of piston only 1 can be surrounded at the right-hand member of left piston joint 3, then penetrate mounting screw from the side and formed fixing.Have a criss-cross installation cavity in the inside of left piston joint 3, in this installation cavity, radial direction is provided with control knob 4, is axially installed with control piston 5.Wherein, the end of control knob 4 is arranged with button spring 6, control knob 4 and control piston 5 are installed in criss-crossing, the contact position that is upper and control piston of leaning to one side of control knob is a rake 7, control piston 5 is provided with the oblique nibs of the described rake of coupling, coordinating and then ejecting forward control piston 5 by rake and oblique nibs when control knob presses down.
Piston only 1 the other end is provided with right piston joint 8, is provided with a movable joint 9 in right piston joint 8, and movable joint 9 is by push rod 10 connection control piston 5, and the inside of movable joint 9 is provided with Returnning spring 11.The means of fixation of right piston joint 8 is formed fixing by penetrating set screw from the sidewall of piston only 1.
The outer end of right piston joint 8 is arranged with the steel ball bracket 12 of annular, the inside of strut cylinder body 2 is inserted in the outer end of right piston joint 8 together with steel ball bracket 12, be provided with one group of steel ball 13 in gap between steel ball bracket 12 and strut cylinder body 2, the exterior contour of this steel ball bracket has runcinate self-locking chamber 14.Steel ball 13 is inserted in described self-locking chamber 14.
The similar rounded tooth of cross section structure in self-locking chamber 14, the size of its outer accent is less than the chamber inner tank mouths of below, and such steel ball can not contact with strut cylinder body 2 when self-locking chamber is inner, and steel ball can contact with strut cylinder body 2 when the position of accent.
The inside of bracket 12 is provided with movable gland 15, the outer rim of movable gland 15 and the inwall resilient engagement of strut cylinder body 2.The middle part of movable gland 15 is provided with the spring pull bar 21 running through self, and the front end of spring pull bar 21 is connected to the outer end of right piston joint 8.The so movable gland 15 of downward pulling force by spring pull bar 21 can press down steel ball 13 all the time and move, so that the operation of steel ball toward the accent in self-locking chamber 14.
Strut cylinder body 2 is connected to the outside of piston only 1 by attachment cap 17, and described attachment cap 17 is inner is provided with QY RunddichtringO 18 with the contact position of piston only 1, and the joint of strut cylinder body 2 and attachment cap 17 is provided with O RunddichtringO 19.The front end of strut cylinder body 2 is provided with cylinder joint 20.
During concrete use, first press control knob, coordinating in conjunction with the work structuring of rake 7 and oblique nibs when control knob presses down, control piston 5 can be ejected forward.Control piston 5 driven forward push rod 10, conduct driven forward movable joint 9 again, and then driven forward steel ball bracket, radial direction (inwardly) motion made by such steel ball in the scope of the restriction of steel ball bracket, and then formation free gap, so just can manual stretch support bar cylinder body 2 freely, and shortening freely.
And when decontroling control knob, in movable joint, Returnning spring returns back to top push rod, the drop-down movable gland 15 of pulling force of spring pull bar 21, movable gland 1 makes steel ball and steel ball bracket move backward together according to stressed size, radial direction (outwardly) motion made by steel ball in the scope of the restriction of steel ball bracket 12, and the activity of corresponding radial direction (outwards) is made according to the size of required support force, and at steel ball bracket, contrary power of tiltedly carving (support force) is produced between steel ball and strut cylinder body, along with the increasing of steel ball radial direction (outwards) activity, the power of tiltedly carving produced is also larger, namely need the object by supporting heavier, strut cylinder body will produce larger support force, also referred to as self-lock force, this self-lock force firmly can support the required object supported, produce safety, reliable support force.
Above-described embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, patent of the present invention and protection domain should be as the criterion with appended claims.
Claims (5)
1. a self-locking support bar, is characterized in that: comprise piston only (1) and be set in the strut cylinder body (2) on piston only (1);
One end of described piston only (1) is provided with left piston joint (3), the radial control knob (4) installed and the control piston (5) axially installed are installed in described left piston joint (3), the end of this control knob (4) is arranged with button spring (6), described control knob (4) and control piston (5) are installed in criss-crossing, and the contact position that is upper and control piston of leaning to one side of control knob is a rake (7), described control piston (5) is provided with the oblique nibs of the described rake of coupling, coordinating and then ejecting forward control piston (5) by rake and oblique nibs when described control knob presses down,
Described piston only (1) the other end is provided with right piston joint (8), in described right piston joint (8), a movable joint (9) is installed, described movable joint (9) is by push rod (10) connection control piston (5), and the inside of movable joint (9) is provided with Returnning spring (11); The outer end of described right piston joint (8) is arranged with annular steel ball bracket (12) and inserts the inside of described strut cylinder body (2), one group of steel ball (13) is provided with in gap between described steel ball bracket (12) and described strut cylinder body (2), the exterior contour of this steel ball bracket has runcinate self-locking chamber (14), and described steel ball (13) is inserted in described self-locking chamber (14); The inside of described steel ball bracket (12) is provided with movable gland (15), the outer rim of described movable gland (15) and the inwall resilient engagement of described strut cylinder body (2).
2. self-locking support bar as claimed in claim 1, is characterized in that: the outer end of described left piston joint (3) is also provided with supported joint (16).
3. self-locking support bar as claimed in claim 1, it is characterized in that: described strut cylinder body (2) is connected to the outside of piston only (1) by attachment cap (17), described attachment cap (17) is inner is provided with QY RunddichtringO (18) with the contact position of piston only (1), and the joint of described strut cylinder body (2) and attachment cap (17) is provided with O RunddichtringO (19).
4. self-locking support bar as claimed in claim 3, is characterized in that: the front end of described strut cylinder body (2) is provided with cylinder joint (20).
5. self-locking support bar as claimed in claim 1, it is characterized in that: the middle part of described movable gland (15) is provided with the spring pull bar (21) running through self, the front end of described spring pull bar (21) is connected to the outer end of described right piston joint (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110720.8A CN104675799A (en) | 2015-03-14 | 2015-03-14 | Self-locking support rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110720.8A CN104675799A (en) | 2015-03-14 | 2015-03-14 | Self-locking support rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675799A true CN104675799A (en) | 2015-06-03 |
Family
ID=53311259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510110720.8A Pending CN104675799A (en) | 2015-03-14 | 2015-03-14 | Self-locking support rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675799A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060157A (en) * | 2015-07-16 | 2015-11-18 | 九江消防装备有限公司 | Heavy type supporting set |
| CN106427008A (en) * | 2016-12-13 | 2017-02-22 | 中船重工中南装备有限责任公司 | Self-locking hydraulic machine of energy-storage-type gear rack cylinder |
| CN111438479A (en) * | 2020-04-27 | 2020-07-24 | 江西铭源电气有限公司 | Self-locking type transformer support rod |
-
2015
- 2015-03-14 CN CN201510110720.8A patent/CN104675799A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060157A (en) * | 2015-07-16 | 2015-11-18 | 九江消防装备有限公司 | Heavy type supporting set |
| CN106427008A (en) * | 2016-12-13 | 2017-02-22 | 中船重工中南装备有限责任公司 | Self-locking hydraulic machine of energy-storage-type gear rack cylinder |
| CN111438479A (en) * | 2020-04-27 | 2020-07-24 | 江西铭源电气有限公司 | Self-locking type transformer support rod |
| CN111438479B (en) * | 2020-04-27 | 2021-07-27 | 江西铭源电气有限公司 | Self-locking type transformer support rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |
|
| WD01 | Invention patent application deemed withdrawn after publication |