CN202971382U - Novel valve core with spring seat - Google Patents
Novel valve core with spring seat Download PDFInfo
- Publication number
- CN202971382U CN202971382U CN 201220732427 CN201220732427U CN202971382U CN 202971382 U CN202971382 U CN 202971382U CN 201220732427 CN201220732427 CN 201220732427 CN 201220732427 U CN201220732427 U CN 201220732427U CN 202971382 U CN202971382 U CN 202971382U
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- spring seat
- spring
- valve core
- boss
- shaped
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Abstract
The utility model discloses a novel valve core with a spring seat. The novel valve core comprises a valve core rod body which is assembled in a lower valve cavity of a valve body in a slide mode. Seven annular sealing bosses are arranged on the valve core rod body. The periphery surface of each annular sealing boss is matched with inner periphery wall liquid of the lower valve cavity in a sealing slide mode. The spring seat connected on the back face of the seventh annular sealing boss is arranged on the tail portion of the valve core rod body in an integrally-machining mode, and a novel spring seat valve core structure with the spring seat is formed. A spring guide rod is arranged in the center of the spring seat. A compressed spring is arranged on the spring guide rod in a sleeved mode. The front end of the compressed spring is connected with a locating annular face of the spring seat in an abutting mode and is matched with the locating annular face of the spring seat. The valve core rod body is assembled in the lower valve cavity of the valve body through the compressed spring in a pressing abutting mode, and a pressure adjusting plug is arranged at the back end of the compressed spring in a spiral pressing mode. The novel valve core with the spring seat is simple in structure, convenient to machine and low in assembling requirement, mounting success rate of PVECVP valves is greatly improved, and production manufacturing cost is lowered, and the novel valve core with the spring seat has the advantages of being quick in mounting speed and stable in performance.
Description
Technical field
The utility model relates to the hydraulics field, especially is applied in a kind of valve core structure in PVECVP Series Hydraulic valve, specifically a kind of Novel valve core with spring seat.
Background technique
The PVECVP valve is a kind of combination brake switch and proporting of up-down structure at present, be separately installed with upper valve rod and lower valve rod in the upper strata of valve body valve pocket and lower floor's valve pocket, the afterbody of upper valve rod and lower valve rod is arc structure, and the afterbody apical grafting of this arc structure is in the spring seat cavity that spring seat is shaped with.In prior art, particularly lower floor's valve assembly yield at lower valve rod place is relatively low, looking for its reason to find is mainly that spring seat is shorter due to the stem guiding effect in assembly process, installing space is limited, cause spring seat and stem dropping, the space that makes the screw plug of valve pocket mouth tighten is inadequate, twist not tight, seal ring has lost seal action institute extremely, therefore how to solve the problem that spring seat often comes off, and the assembly yield that improves valve is the prerequisite that improves this valve manufacturing efficiency and quality.
Summary of the invention
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, and a kind of Novel valve core with spring seat that row is simple in structure, easy to process, assembly yield is high is provided.
the utility model solves the problems of the technologies described above the technological scheme that adopts: a kind of Novel valve core with spring seat, comprising that slip is fitted in the spool body of rod in the valve body lower valve chamber, be shaped with seven road ring packing boss on the spool body of rod, the circumferential surface of per pass ring packing boss all slides with the inner circle wall liquid sealing of lower valve chamber and matches, spool body of rod afterbody one processing is shaped with the new spring seat valve core structure that the spring seat that is connected to the 7th ring packing boss back side consists of a kind of related spring seat, the center of spring seat is shaped with spring guide, be set with Compress Spring on this spring guide, and the front end of Compress Spring matches with the location ring surface apical grafting of spring seat, the compressed spring top of the spool body of rod is press-fitted in the lower valve chamber that is contained in valve body, the rear end spiral of Compress Spring is pressed with pressure and regulates screw plug.
For optimizing technique scheme, Adopts measure also comprises:
The tail end of above-mentioned spring guide is shaped with the tapering guiding surface.
Above-mentioned lower valve chamber expands the assembly cavity that is shaped with concentric, spring seat and Compress Spring and pressure are regulated screw plug and all are arranged in assembly cavity, less than the diameter of assembly cavity, and this spring seat is shaped with the spacing ring surface that coordinates with the spacing thrust of assembly cavity diapire to the diameter of spring seat greater than the diameter of lower valve chamber.
Between above-mentioned the first annular seal boss and the second ring packing boss, between the 3rd ring packing boss and Fourth Ring shape seal boss, between five rings shape seal boss and the 6th ring packing boss and be formed with respectively first ring connected in star, the second annular groove, the 3rd annular groove and Fourth Ring connected in star between the 6th ring packing boss and the 7th ring packing boss, and have at least one annular groove to be configured for being communicated with the circumferential connecting passage of hydraulic pressure runner in valve body in four road annular grooves.
Above-mentioned valve core rod system has the front rod section that is connected to the first annular seal boss front end, and the periphery of front rod section front-end face is shaped with circular arc and smears the angle, and is formed with the arc platform between being connected of front rod section and the first annular seal boss.
Above-mentioned valve core rod body is positioned between the second ring packing boss and the 3rd ring packing boss and is shaped with middle rod section, and be shaped with the rear bar section between Fourth Ring shape seal boss and five rings shape seal boss, the diameter of rear bar section is greater than the diameter of middle rod section, and the diameter of middle rod section equals the diameter of front rod section.
The length of above-mentioned middle rod section is greater than the length of rear bar section, the length of rear bar section is greater than the length of front rod section, has a bar section to match with the valve body lower valve chamber to be configured for being communicated with the axial connecting passage of hydraulic pressure runner in valve body in front rod section, middle rod section and rear bar section at least.
Above-mentioned Compress Spring rear end is set with the spring back seat, and Compress Spring is regulated screw plug phase apical grafting through spring back seat and above-mentioned pressure.
Compared with prior art, be shaped with seven road ring packing boss on the spool body of rod of the present utility model, and be shaped with spring seat in the processing of the back side of the 7th ring packing boss one, form a kind of new spring seat valve core structure of related spring seat, Compress Spring acts directly on the spring seat spool relatively, increased the guiding length of spring seat, thereby be more prone to the valve body assembling, assembly yield improves greatly, the lower valve that efficiently solves conventional P VECVP valve is installed difficulty, manufacturing efficiency is low, the technological deficiency that working life is short.The utility model is simple in structure, and is easy to process, reduced the matching requirements of PVECVP valve, and the assembly yield that makes such valve brings up to present 99% from original 40%.
Description of drawings
Fig. 1 is the structural representation of the utility model and valve body assembling;
Fig. 2 is the utility model embodiment's structural representation;
Fig. 3 is the structural representation of traditional spool in prior art.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 to 2 is structural representation of the present utility model.
reference character wherein is: the first annular seal boss A1, the second ring packing boss A2, the 3rd ring packing boss A3, Fourth Ring shape seal boss A4, five rings shape seal boss A5, the 6th ring packing boss A6, the 7th ring packing boss A7, first ring connected in star B1, the second annular groove B2, the 3rd annular groove B3, Fourth Ring connected in star B4, valve body 1, lower valve chamber 1a, assembly cavity 1b, the spool body of rod 2, front rod section 21, front-end face 211, middle rod section 22, rear bar section 23, spring seat 24, location ring surface 24a, spacing ring surface 24b, spring guide 241, tapering guiding surface 242, Compress Spring 3, pressure is regulated screw plug 4, spring back seat 5, tradition spool 6, end circular arc guide pillar 61, conventional springs seat 7, locking screw plug 8.
as extremely shown in Figure 2 in Fig. 1, a kind of Novel valve core with spring seat of the present utility model, comprising that slip is fitted in the spool body of rod 2 in valve body 1 lower valve chamber 1a, be shaped with seven road ring packing boss on the spool body of rod 2, the circumferential surface of per pass ring packing boss all slides with the inner circle wall liquid sealing of lower valve chamber 1a and matches, the 2 afterbody one processing of the spool body of rod are shaped with the new spring seat valve core structure that the spring seat 24 that is connected to the 7th ring packing boss A7 back side consists of a kind of related spring seats, the center of spring seat 24 is shaped with spring guide 241, be set with Compress Spring 3 on this spring guide 241, and the front end of Compress Spring 3 matches with the location ring surface 24a apical grafting of spring seat 24, the compressed spring of the spool body of rod 23 tops are press-fitted in the lower valve chamber 1a that is contained in valve body 1, and the rear end spiral of Compress Spring 3 is pressed with pressure and regulates screw plug 4.The utility model is for a kind of PVECVP valve, in prior art as shown in Figure 3, traditional spool 6 is installed in the lower valve chamber of such valve, the afterbody of tradition spool 6 is shaped with end circular arc guide pillar 61, end circular arc guide pillar 61 apical graftings are in the arc cavity of conventional springs seat 7, and traditional spool 6 is fitted in the lower valve chamber 1a of PVECVP valve by Compress Spring 3 through the transfer function of conventional springs seat 7.Because traditional spool 6 and conventional springs seat 7 are two parts of split, cause the complicated trouble of installation steps, and in assembly process, because the installing space of this valve is limited, the guiding stroke that tradition spool 6 contacts with conventional springs seat 7 is short, often cause 7 deflections of conventional springs seat to slide and come off, the locking screw plug 8 that makes valve can not lock sealing and cause leakage of oil to be lost efficacy.Thereby assembly yield is not high, and manufacturing efficiency is low, has virtually increased workman's labor intensity.The spool body of rod of the present utility model 2 one processing are shaped with spring seat 24 and form an integrally-built spring seat spool, and spring seat 24 also is shaped with the spring guide 241 that coordinates with Compress Spring 3 suits, have guaranteed to install the stability of connection.Pressure is regulated the preload pressure that screw plug 4 is used for regulating Compress Spring 3, and Compress Spring 3 is by storing elastic force, this spring band flexible spring seat valve core motion after pressurized.Drive the valve core motion because Compress Spring 3 acts directly on the spring seat valve core, relatively increased guiding length, thereby the problem of having avoided traditional Split type structure often to come off, make to be mounted to power and greatly to improve.Simultaneously the utility model has been simplified installation steps relatively, reduced matching requirements and difficulty, thereby manufacturing efficiency is higher, its assembly yield can from before 40% bring up to present 99%.
In order further to optimize the structure of this product, as can be seen from Figure 2, the tail end of spring guide 241 of the present utility model is shaped with tapering guiding surface 242.Tapering guiding surface 242 can guarantee spring guide 241 and Compress Spring 3 more smoothly installation sleeve join.
In embodiment, as depicted in figs. 1 and 2, lower valve chamber 1a expands the assembly cavity 1b that is shaped with concentric, spring seat 24 and Compress Spring 3 and pressure are regulated screw plug 4 and all are arranged in assembly cavity 1b, less than the diameter of assembly cavity 1b, and this spring seat 24 is shaped with the spacing ring surface 24b that coordinates with the spacing thrust of assembly cavity 1b diapire to the diameter of spring seat 24 greater than the diameter of lower valve chamber 1a.
In embodiment, between the first annular seal boss A1 and the second ring packing boss A2, between the 3rd ring packing boss A3 and Fourth Ring shape seal boss A4, between five rings shape seal boss A5 and the 6th ring packing boss A6 and be formed with respectively first ring connected in star B1, the second annular groove B2, the 3rd annular groove B3 and Fourth Ring connected in star B4 between the 6th ring packing boss A6 and the 7th ring packing boss A7, and have at least one annular groove to be configured for being communicated with the circumferential connecting passage of the interior hydraulic pressure runner of valve body 1 in four road annular grooves.The ring packing boss is divided into lower valve chamber 1a the space segment that multistage seals mutually, be shaped with the multipath hydraulic runner in valve body 1, every road hydraulic pressure runner all is communicated with lower valve chamber 1a, and the spool body of rod 2 is realized break-make between the multipath hydraulic runner by the slide displacement of ring packing boss sealing position.
In embodiment, the spool body of rod 2 is shaped with the front rod section 21 that is connected to the first annular seal boss A1 front end, and the periphery of front rod section 21 front-end faces 211 is shaped with circular arc and smears the angle, and is formed with the arc platform between being connected of front rod section 21 and the first annular seal boss A1.
In embodiment, the spool body of rod 2 is shaped with middle rod section 22 between the second ring packing boss A2 and the 3rd ring packing boss A3, and be shaped with rear bar section 23 between Fourth Ring shape seal boss A4 and five rings shape seal boss A5, the diameter of rear bar section 23 is greater than the diameter of middle rod section 22, and the diameter of middle rod section 22 equals the diameter of front rod section 21.
In embodiment, the length of middle rod section 22 is greater than the length of rear bar section 23, the length of rear bar section 23 has at least a bar section to match with valve body 1 lower valve chamber 1a and is configured for being communicated with the axial connecting passage of the interior hydraulic pressure runner of valve body 1 greater than the length of front rod section 21 in front rod section 21, middle rod section 22 and rear bar section 23.Each bar section of the present utility model has specific length, and each bar section can be used for determining the control position of ring packing boss, and the annulated column shape space that can utilize also certainly that bar section and lower valve chamber 1a form is as the connecting passage use of hydraulic pressure runner.
In embodiment, Compress Spring 3 rear ends are set with spring back seat 5, and Compress Spring 3 is regulated screw plug 4 phase apical graftings through spring back seat 5 and above-mentioned pressure.
Great advantage of the present utility model is: simple for structure, easy to process, matching requirements are low, are assembled into the effect rate high, and stable performance, and reliable in quality can reduce manufacturing cost effectively.
Claims (8)
1. Novel valve core with spring seat, comprising that slip is fitted in the spool body of rod (2) in valve body (1) lower valve chamber (1a), it is characterized in that: be shaped with seven road ring packing boss on the described spool body of rod (2), the circumferential surface of described per pass ring packing boss all slides with the inner circle wall liquid sealing of lower valve chamber (1a) and matches, the described spool body of rod (2) afterbody one processing is shaped with the new spring seat valve core structure that the spring seat (24) that is connected to the 7th ring packing boss (A7) back side consists of a kind of related spring seat, the center of described spring seat (24) is shaped with spring guide (241), be set with Compress Spring (3) on this spring guide (241), and the front end of described Compress Spring (3) matches with location ring surface (24a) apical grafting of spring seat (24), the compressed spring of the described spool body of rod (2) (3) top is press-fitted in the lower valve chamber (1a) that is contained in valve body (1), and the rear end spiral of Compress Spring (3) is pressed with pressure and regulates screw plug (4).
2. a kind of Novel valve core with spring seat according to claim 1, it is characterized in that: the tail end of described spring guide (241) is shaped with tapering guiding surface (242).
3. a kind of Novel valve core with spring seat according to claim 2, it is characterized in that: described lower valve chamber (1a) expands the assembly cavity (1b) that is shaped with concentric, described spring seat (24) and Compress Spring (3) and pressure are regulated screw plug (4) and all are arranged in assembly cavity (1b), the diameter of described spring seat (24) greater than the diameter of lower valve chamber (1a) less than the diameter of assembly cavity (1b), and this spring seat (24) is shaped with the spacing ring surface (24b) that coordinates with the spacing thrust of assembly cavity (1b) diapire.
4. a kind of Novel valve core with spring seat according to claim 3, it is characterized in that: between the described first annular seal boss (A1) and the second ring packing boss (A2), between the 3rd ring packing boss (A3) and Fourth Ring shape seal boss (A4), be formed with respectively first ring connected in star (B1) between five rings shape seal boss (A5) and the 6th ring packing boss (A6) and between the 6th ring packing boss (A6) and the 7th ring packing boss (A7), the second annular groove (B2), the 3rd annular groove (B3) and Fourth Ring connected in star (B4), and have at least one annular groove to be configured for being communicated with the circumferential connecting passage of the interior hydraulic pressure runner of valve body (1) in described four road annular grooves.
5. a kind of Novel valve core with spring seat according to claim 4, it is characterized in that: the described spool body of rod (2) is shaped with the front rod section (21) that is connected to the first annular seal boss (A1) front end, the periphery of described front rod section (21) front-end face (211) is shaped with circular arc and smears the angle, and is formed with the arc platform between being connected of front rod section (21) and the first annular seal boss (A1).
6. a kind of Novel valve core with spring seat according to claim 5, it is characterized in that: the described spool body of rod (2) is positioned between the second ring packing boss (A2) and the 3rd ring packing boss (A3) and is shaped with middle rod section (22), and be shaped with rear bar section (23) between Fourth Ring shape seal boss (A4) and five rings shape seal boss (A5), the diameter of described rear bar section (23) is greater than the diameter of middle rod section (22), and the diameter of described middle rod section (22) equals the diameter of front rod section (21).
7. a kind of Novel valve core with spring seat according to claim 6, it is characterized in that: the length of described middle rod section (22) is greater than the length of rear bar section (23), the length of described rear bar section (23) has at least a bar section to match with valve body (1) lower valve chamber (1a) and is configured for being communicated with the axial connecting passage of the interior hydraulic pressure runner of valve body (1) greater than the length of front rod section (21) in described front rod section (21), middle rod section (22) and rear bar section (23).
8. a kind of Novel valve core with spring seat according to claim 7, it is characterized in that: described Compress Spring (3) rear end is set with spring back seat (5), and described Compress Spring (3) is regulated screw plug (4) phase apical grafting through spring back seat (5) and above-mentioned pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220732427 CN202971382U (en) | 2012-12-27 | 2012-12-27 | Novel valve core with spring seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220732427 CN202971382U (en) | 2012-12-27 | 2012-12-27 | Novel valve core with spring seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971382U true CN202971382U (en) | 2013-06-05 |
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ID=48512466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220732427 Expired - Lifetime CN202971382U (en) | 2012-12-27 | 2012-12-27 | Novel valve core with spring seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032400A (en) * | 2012-12-27 | 2013-04-10 | 宁波广天赛克思液压有限公司 | Novel valve core with spring seat |
-
2012
- 2012-12-27 CN CN 201220732427 patent/CN202971382U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032400A (en) * | 2012-12-27 | 2013-04-10 | 宁波广天赛克思液压有限公司 | Novel valve core with spring seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jiangbei District, Zhejiang city of Ningbo Province China 315021 Street No. 195 Patentee after: SKS HYDRAULIC TECHNOLOGY CO.,LTD. Address before: Jiangbei District, Zhejiang city of Ningbo Province China 315021 Street No. 195 Patentee before: NINGBO WIDE SKY SKS HYDRAULIC Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |