CN214946707U

CN214946707U - High-sensitivity reversing valve for drilling machine

Info

Publication number: CN214946707U
Application number: CN202121609829.3U
Authority: CN
Inventors: 应志达; 赵佳音; 应智敏; 应志琴; 杜敏勇; 刘培俊; 赵春; 蒋敏洁
Original assignee: ZHEJIANG HANDA MACHINERY CO Ltd
Current assignee: ZHEJIANG HANDA MACHINERY CO Ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-11-30
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses a high-sensitivity reversing valve for a drilling machine, which comprises a valve body, wherein one end of the valve body is connected with a valve cover, the other end of the valve body is provided with an air inlet joint, a cavity is arranged in the valve body and the valve cover, a reset ejector rod is arranged in the cavity, a dustproof assembly is arranged outside the valve body and the valve cover, the dustproof assembly comprises a dustproof shell, a first dustproof cover and a second dustproof cover, the dustproof shell is sleeved outside the valve body, the dustproof assembly is arranged outside the valve body and the valve cover, the dustproof assembly comprises a dustproof shell, a first dustproof cover and a second dustproof cover, and a sealing rubber ring is arranged between the connection parts of the dustproof shell and the first dustproof cover and the second dustproof cover respectively, so that the reversing valve is arranged in a closed cavity of the dustproof assembly, the reversing valve can work in a dust environment, and the defect of dust blockage of the reversing valve in a drilling environment is avoided, the reversing reaction is fast, the sensitivity is high, and the working efficiency is improved.

Description

High-sensitivity reversing valve for drilling machine

Technical Field

The utility model relates to a machining drilling auxiliary assembly technical field specifically is a high sensitivity switching-over valve for drilling machine.

Background

The drilling machine is a machine tool which mainly uses a drill to machine a hole on a workpiece. Typically the drill bit is rotated into a primary motion and the drill bit is moved axially into a feed motion. The drilling machine is simple in structure, relatively low in machining precision, capable of drilling through holes and blind holes, replacing special cutters, and capable of expanding, reaming or tapping and the like. In the machining process, the workpiece is fixed, the cutter moves, the center of the cutter is aligned with the center of the hole, and the cutter rotates (main motion). The drilling machine is characterized in that a workpiece is fixed and a cutter does rotary motion.

The multi-head drilling machine is used by being installed on a drilling machine, is improved from a single-head drilling machine, and is multifunctional equipment. A commonly used directional valve is a directional control valve having more than two flow patterns. The reversing valve can realize communication, cutting off and reversing of gas and liquid media, but when the reversing valve works in a drilling environment, the phenomenon of dust blockage of the reversing valve during reversing work is caused, so that the reversing reaction of the reversing valve is slow and insensitive, and the working progress and the working quality are influenced. Therefore, a need exists to provide a high sensitivity directional control valve for a drill press that solves the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high sensitivity switching-over valve for drilling machine, set up dustproof subassembly in valve body and valve gap outside, dustproof subassembly includes dust cover, first shield and second shield, dust cover is provided with the sealing rubber circle respectively with between the junction of first shield and second shield, make the switching-over valve set up in the closed cavity of dustproof subassembly, make the switching-over valve can be in work under the dusty environment, the dust jam defect of switching-over valve under drilling environment has been avoided, make the switching-over reaction fast, high sensitivity, and the work efficiency is improved, in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high sensitivity switching-over valve for drilling machine, includes the valve body, valve body one end is connected with the valve gap, the valve body other end is provided with air inlet joint, be provided with the die cavity in valve body and the valve gap, be provided with the ejector pin that resets in the die cavity, valve body and valve gap are provided with dustproof subassembly outward, dustproof subassembly includes dust cover, first shield and second shield, the valve body outside is located to the dust cover, first shield and second shield are pegged graft respectively in the dust cover both ends, dust cover is provided with the sealing rubber circle respectively with between the junction of first shield and second shield, the joint has been seted up to second shield one end, air inlet joint sets up in the joint.

Preferably, the valve body and the valve cover are both provided with internal thread holes, one end of the valve cover is in threaded connection with a fixing screw, the fixing screw is in threaded connection with the internal thread holes, and a sealing rubber ring is also arranged between the joint of the valve body and the valve cover.

Preferably, a throttling sleeve is arranged in the air inlet joint, and a diaphragm is also arranged in the air inlet joint.

Preferably, the cross sections of the dustproof shell, the first dustproof cover and the second dustproof cover are all set to be rectangular, a mandril hole is formed in the first dustproof cover and is set to be circular, and the reset mandril is arranged in the mandril hole.

Preferably, the first dust cover has a rectangular plug block at one end with equal distance, the dust-proof housing has a slot at one end, and the plug block is inserted into the slot.

Preferably, the top and the bottom of the valve body are provided with connectors, the top and the bottom of the dustproof shell are connected with flanges, and the flanges are arranged at one ends of the connectors.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up dustproof subassembly in valve body and valve gap outside, dustproof subassembly includes dustproof housing, first shield and second shield, is provided with the sealing rubber circle between the dustproof housing respectively and the junction of first shield and second shield, makes the switching-over valve set up in the closed cavity of dustproof subassembly, makes the switching-over valve can be in the work under dusty environment, has avoided the dust of switching-over valve under drilling environment to block up the defect, makes the switching-over reaction fast, sensitivity is high, has improved work efficiency;

2. the diaphragm is arranged in the air inlet joint of the valve body, so that the sealing performance of the reversing valve is kept to be enhanced under the long-term working state.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of the side view of the ejector pin hole of the present invention;

fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a valve body; 2. a valve cover; 3. a set screw; 4. an internally threaded bore; 5. an air inlet joint; 6. a throttling sleeve; 7. a membrane; 8. resetting the ejector rod; 9. a cavity; 10. an interface; 11. a dust-proof assembly; 12. a dust-proof housing; 1201. a slot; 13. a first dust cover; 1301. a jack rod hole; 14. a second dust cover; 1401. a joint; 15. a flange; 16. sealing the rubber ring; 17. and (5) inserting the blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-sensitivity reversing valve for a drilling machine comprises a valve body 1, wherein one end of the valve body 1 is connected with a valve cover 2, inner threaded holes 4 are formed in the valve body 1 and the valve cover 2, one end of the valve cover 2 is in threaded connection with a fixing screw 3, the fixing screw 3 is in threaded connection with the inner threaded holes 4, a sealing rubber ring 16 is also arranged between the connecting part of the valve body 1 and the valve cover 2, and the fixing screw 3 and the inner threaded holes 4 are arranged for matching use, so that the valve body 1 and the valve cover 2 are more stably connected;

the other end of the valve body 1 is provided with an air inlet joint 5, a cavity 9 is arranged in the valve body 1 and the valve cover 2, a reset mandril 8 is arranged in the cavity 9, dustproof components 11 are arranged outside the valve body 1 and the valve cover 2, each dustproof component 11 comprises a dustproof shell 12, a first dustproof cover 13 and a second dustproof cover 14, the dustproof shell 12 is sleeved outside the valve body 1, the first dustproof cover 13 and the second dustproof cover 14 are respectively inserted at two ends of the dustproof shell 12, a sealing rubber ring 16 is arranged between the dustproof shell 12 and the joint of the first dustproof cover 13 and the second dustproof cover 14, the valve body 1 and the valve cover 2 of the reversing valve are fixedly connected through a fixing screw 3, then the valve body 1 and the valve cover 2 are placed in the dustproof component 11, the dustproof component 11 comprises a dustproof shell 12, the first dustproof cover 13 and the second dustproof cover 14, the dustproof shell 12 is sleeved outside the valve body 1, the first dustproof cover 13 and the second dustproof cover 14 are respectively inserted at two ends of the dustproof shell 12, a sealing rubber ring 16 is arranged between the dustproof shell 12 and the joint of the first dustproof cover 13 and the second dustproof cover 14 respectively, so that the dustproof shell 12, the first dustproof cover 13 and the second dustproof cover 14 form a closed cavity, the reversing valve can work in a dusty environment, the defect of dust blockage of the reversing valve in a drilling environment is avoided, the reversing reaction is fast, the sensitivity is high, and the working efficiency is improved;

one end of the second dustproof cover 14 is provided with a joint 1401, the air inlet joint 5 is arranged in the joint 1401, a throttling sleeve 6 is arranged in the air inlet joint 5, a diaphragm 7 is also arranged in the air inlet joint 5, and the air inlet joint 5 keeps the tightness of the reversing valve in a long-term quasi-working state through the diaphragm 7; the cross sections of the dustproof shell 12, the first dustproof cover 13 and the second dustproof cover 14 are all set to be rectangular, a top rod hole 1301 is formed in the first dustproof cover 13, the top rod hole 1301 is set to be circular, the reset top rod 8 is arranged in the top rod hole 1301, and the top rod hole 1301 is formed to facilitate the penetration of the reset top rod 8;

the inserting blocks 17 are distributed at one end of the first dustproof cover 13 in a rectangular and equidistant mode, the slot 1201 is formed in one end of the dustproof shell 12, the inserting blocks 17 are inserted into the slot 1201, and a structure that the inserting blocks 17 are matched with the slot 1201 is arranged, so that the dustproof shell 12 and the first dustproof cover 13 are more convenient to mount and dismount; the top and the bottom of the valve body 1 are provided with connectors 10, the top and the bottom of the dustproof shell 12 are connected with flanges 15, the flanges 15 are installed at one ends of the connectors 10, and the two groups of flanges 15 are respectively connected with external devices to realize the normal work of the reversing valve.

The working principle is as follows: when the reversing valve is used, firstly, a valve body 1 and a valve cover 2 of the reversing valve are fixedly connected through a fixing screw 3, then the valve body 1 and the valve cover 2 are placed in a dustproof assembly 11, the dustproof assembly 11 comprises a dustproof shell 12, a first dustproof cover 13 and a second dustproof cover 14, the dustproof shell 12 is sleeved outside the valve body 1, then the first dustproof cover 13 and the second dustproof cover 14 are respectively inserted at two ends of the dustproof shell 12, and a sealing rubber ring 16 is arranged between the dustproof shell 12 and the joint of the first dustproof cover 13 and the joint of the second dustproof cover 14, so that the dustproof shell 12, the first dustproof cover 13 and the second dustproof cover 14 form a closed cavity, the reversing valve can work in a dusty environment, the defect of dust blockage of the reversing valve in a drilling environment is avoided, the reversing reaction is fast, the sensitivity is high, and the working efficiency is improved; the reversing valve realizes reversing through external device air feed, and when valve body 1 was in accurate operating condition, be equipped with throttle sleeve 6 in the air inlet connector 5, also be equipped with diaphragm 7 in the air inlet connector 5, air inlet connector 5 keeps the leakproofness of reversing valve under long-term accurate operating condition through diaphragm 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high sensitivity switching-over valve for drilling machine, includes valve body (1), its characterized in that: one end of the valve body (1) is connected with a valve cover (2), the other end of the valve body (1) is provided with an air inlet joint (5), a cavity (9) is arranged in the valve body (1) and the valve cover (2), a reset ejector rod (8) is arranged in the cavity (9), a dustproof assembly (11) is arranged outside the valve body (1) and the valve cover (2), the dustproof assembly (11) comprises a dustproof shell (12), a first dustproof cover (13) and a second dustproof cover (14), the dustproof shell (12) is sleeved outside the valve body (1), the first dustproof cover (13) and the second dustproof cover (14) are respectively inserted at two ends of the dustproof shell (12), a sealing rubber ring (16) is arranged between the dustproof shell (12) and the joint of the first dustproof cover (13) and the second dustproof cover (14), one end of the second dustproof cover (14) is provided with a joint (1401), the air inlet joint (5) is arranged in the joint (1401).

2. The high sensitivity direction valve for a drilling machine of claim 1, wherein: internal thread hole (4) have all been seted up on valve body (1) and valve gap (2), valve gap (2) one end threaded connection has set screw (3), set screw (3) threaded connection is in internal thread hole (4), also be provided with between the junction of valve body (1) and valve gap (2) sealing rubber circle (16).

3. The high sensitivity direction valve for a drilling machine of claim 1, wherein: a throttling sleeve (6) is arranged in the air inlet joint (5), and a diaphragm (7) is also arranged in the air inlet joint (5).

4. The high sensitivity direction valve for a drilling machine of claim 1, wherein: the cross section of dust cover (12), first shield (13) and second shield (14) all sets up to the rectangle, ejector pin hole (1301) has been seted up on first shield (13), ejector pin hole (1301) set up to circular, reset ejector pin (8) set up in ejector pin hole (1301).

5. The high sensitivity direction valve for a drilling machine of claim 1, wherein: insert blocks (17) are distributed at one end of the first dustproof cover (13) in a rectangular mode at equal intervals, a slot (1201) is formed in one end of the dustproof shell (12), and the insert blocks (17) are inserted into the slot (1201).

6. The high sensitivity direction valve for a drilling machine of claim 1, wherein: the dustproof valve is characterized in that the top and the bottom of the valve body (1) are provided with connectors (10), the top and the bottom of the dustproof shell (12) are connected with flanges (15), and the flanges (15) are installed at one ends of the connectors (10).