CN210034587U

CN210034587U - Valve lock cover

Info

Publication number: CN210034587U
Application number: CN201920901153.1U
Authority: CN
Inventors: 刘国洪
Original assignee: Wenzhou Special Valve Co Ltd
Current assignee: Wenzhou Special Valve Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-02-07
Anticipated expiration: 2029-06-14

Abstract

The utility model relates to a valve locking cover, which comprises an upper cover body and a lower cover body, wherein one side of the upper cover body is provided with a first locking piece, the lower cover body is provided with a second locking piece corresponding to the first locking piece, the first locking piece and the second locking piece are respectively provided with locking pin holes with the same size, the bottom surface of the lower cover body is provided with a through hole matched with a valve rod, the bottom surface of the lower cover body is also provided with a connecting device, the lower cover body is matched and connected with a valve cover through the connecting device, the connecting device comprises an elastic connecting mechanism for preventing the lower cover body from rotating circumferentially after being matched with the valve cover in a butting way and a pressing mechanism which is coaxial with the through hole and is used for pressing the elastic connecting mechanism, the elastic connecting mechanism is arranged at equal intervals around the center of the through hole, the upper end of the valve cover is provided with a clamping hole corresponding to the elastic connecting mechanism, the lower bottom surface of the pressing mechanism is mutually matched and abutted with the upper top surface of the elastic connecting mechanism.

Description

Valve lock cover

Technical Field

The utility model relates to a valve locking closure.

Background

The valve locking device is an anti-theft mechanism widely applied to valves, is usually installed at the top of the valve and used for protecting a valve rod, and drives the valve to be freely opened and closed by limiting the rotation of the valve rod so as to prevent a medium in a pipeline system from being stolen. At present, locking devices installed on locking ball valves and locking gate valves in the market often cannot effectively play a role in preventing burglary, such as a double-protection valve lock with the published Chinese patent number of 201310285010.X, which discloses a locking structure formed by adopting the magnetism of two magnetic blocks to repel or attract each other and combining the elastic force, and the locking device has low reliability in actual use and is easy to cause locking and blocking. Therefore, it is necessary to design a locking device with good anti-theft performance and reliable use to overcome the defects and shortcomings of the prior valve locking device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem existing in the prior art and providing a valve locking device which is reliable in use and has better anti-theft performance.

In order to achieve the above purpose, the utility model provides a following technical scheme: a valve lock cover comprises an upper cover body and a lower cover body which is connected with the upper cover body in a matched mode through an articulated piece, wherein a first locking piece is arranged on the other side, opposite to the articulated piece, of the upper cover body, a second locking piece is arranged on the position, corresponding to the first locking piece, of the lower cover body, locking pin holes with the same size are formed in the first locking piece and the second locking piece respectively, through holes matched with a valve rod are formed in the bottom surface of the lower cover body, a connecting device is further arranged on the bottom surface of the lower cover body, the lower cover body is connected with a valve cover in a matched mode through the connecting device, the connecting device comprises an elastic connecting mechanism used for preventing the lower cover body from rotating in the circumferential direction after being abutted and matched with the valve cover and a pressing mechanism which is coaxially arranged with the through holes and used for pressing the elastic connecting mechanism, the elastic connecting mechanism is, the clamping hole is matched with the elastic connection mechanism, the pressing mechanism is arranged in the cavity of the lower cover body and is in matched connection with the valve rod through threads, and the lower bottom surface of the pressing mechanism is in matched butt connection with the upper top surface of the elastic connection mechanism.

By adopting the technical scheme, the handle of the valve is taken down to expose the valve rod, the valve rod passes through the through hole on the bottom surface of the lower cover body to be arranged, so that the lower bottom surface of the lower cover body is mutually abutted with the upper top surface of the valve cover, the valve cover is provided with a clamping hole, the elastic connecting mechanism of the connecting device is arranged on the bottom surface of the lower cover body at equal intervals around the center of the through hole, the elastic connecting mechanism is clamped into the clamping hole, the pressing mechanism is arranged on the elastic connecting device and is matched and connected with the valve rod through threads, the pressing mechanism is mutually screwed with the valve rod through the threads, so that the lower bottom surface of the pressing mechanism is mutually abutted and matched with the upper top surface of the elastic connecting mechanism, the elastic connecting mechanism can be fully clamped into the clamping hole, the lower cover body is more stably connected with the valve cover body, the upper cover body is mutually buckled with the lower, go up lid and the mutual lock back of lid down, go up the lower bottom surface of the first locking piece on the lid and the cooperation of the last top surface of the second locking piece on the lid down of butt each other, locking pinhole on the first locking piece is coaxial setting with the locking pinhole on the second locking piece, pass the locking pinhole through tool to lock or other locking device, lock first locking piece and second locking piece, make the lock locking of going up lid and lower lid, the realization is to the protection of valve rod, avoid other people to utilize the instrument to rotate the valve rod and operate the valve. The elastic connecting mechanism is matched with the clamping hole, so that the circumferential rotation caused by the stress after the lower cover body and the valve cover are mutually abutted and matched is avoided; hold-down mechanism passes through the screw thread and is connected with the valve rod cooperation in the through-hole, and hold-down mechanism's lower bottom surface and the mutual butt of last top surface of elastic connection mechanism for elastic connection mechanism and the abundant joint in joint hole have also avoided lid and valve gap to throw off down when lid or the last lid of axial direction pulling along the valve rod, make down the lid more firm with being connected of valve gap, the theftproof performance of the valve lock lid of improvement.

The utility model discloses further set up: elastic connection mechanism includes that the cross section is the elasticity preforming, joint spare, elastic component, marble, the shell fragment groove of "factory" font, the center equidistant setting that the shell fragment groove encircles the through-hole in the bottom surface of lid down, the elasticity preforming includes the rake and the connecting portion of being connected with the rake, the other end of the relative connecting portion of rake is connected with one side that the shell fragment groove corresponds the through-hole, the joint spare sets up in connecting portion correspond the interior bottom surface one side of lid down and run through the shell fragment groove, the elastic component cover is located on the joint spare and is run through the shell fragment groove, the one end and the connecting portion of elastic component are connected, and the other end is connected with the marble cooperation, hold-down mechanism's lower bottom surface and the mutual butt cooperation of last top surface of connecting portion.

By adopting the technical scheme, the elastic sheet grooves are equidistantly arranged on the bottom surface of the lower cover body around the center of the through hole, the elastic pressing sheet comprises an inclined part and a connecting part, one end of the inclined part is matched and connected with one side of the elastic sheet groove on the lower cover body, the other end of the inclined part is connected with the connecting part, the clamping part is arranged on one side of the connecting part corresponding to the bottom surface of the lower cover body and penetrates through the elastic sheet groove, the elastic part is sleeved on the clamping part and penetrates through the elastic sheet groove, one end of the elastic part is connected with the connecting part, the other end of the elastic part is connected with the marble, the lower bottom surface of the lower cover body is mutually abutted and matched with the upper bottom surface of the valve cover, the elastic sheet groove of the elastic connecting mechanism is opposite to the clamping hole on the valve cover, the clamping part is clamped into the clamping hole, meanwhile, the elastic part with the marble is also clamped into the clamping hole, the pressing, hold-down mechanism compresses tightly the connecting portion application of force, and connecting portion receive hold-down mechanism to compress tightly the interior bottom surface that is close to down the lid downwards, and the rake of elasticity preforming also is close to the interior ground of lid down gradually for joint spare, elastic component and the marble card that sets up on connecting portion go into the joint inslot better, make down the lid more firm with being connected of valve gap. The clamping piece is matched with the clamping hole, so that the circumferential rotation caused by the stress after the lower cover body and the valve cover are mutually abutted and matched is avoided; when the clamping hole is a through hole, the elastic piece and the marble are arranged, so that external impurities or media can be prevented from permeating into the lower cover body through the clamping hole; when the joint hole is the blind hole, marble and elastic component set up in the joint downthehole, the mutual butt in bottom surface in marble and joint hole, and the elastic component possesses the elastic compensation function, and hold-down mechanism compresses tightly elastic connection mechanism, but the elastic component automatic compensation packing force for hold-down mechanism's the effect that compresses tightly is better, improves the steadiness and the reliability of connecting.

The utility model discloses further set up: the elastic piece is a spring.

Through adopting above-mentioned technical scheme, the elastic component is the spring, has good elasticity compensation ability for device overall structure is simple compact.

The utility model discloses further set up: the pressing mechanism comprises a pressing nut and a pressing gasket, the pressing gasket is sleeved on the valve rod, the lower bottom surface of the pressing gasket is mutually matched and abutted with the upper top surface of the connecting portion, the locking nut is sleeved on the valve rod and is matched and connected with the valve rod through threads, and the lower bottom surface of the locking nut is mutually abutted with the upper top surface of the pressing gasket.

Through adopting above-mentioned technical scheme, hold-down mechanism's compress tightly the gasket cover establish with the valve rod on, compress tightly the mutual butt of lower bottom surface and the connecting portion of elasticity preforming of gasket, gland nut passes through the screw thread and is connected with the valve rod cooperation, gland nut screws downwards along the axial direction of valve rod, make gland nut's lower bottom surface and the mutual butt of last top surface that compresses tightly the gasket, gland nut is to compressing tightly the gasket application of force, make the gasket to the connecting portion application of force, connecting portion receive decurrent pressure, drive the joint spare on the connecting portion, elastic component and marble cooperate with the mutual joint in joint hole better, make down the lid more firm with being connected of valve gap.

The utility model discloses further set up: the upper cover body is further provided with a sealing structure matched with the lower cover body, the sealing structure is a sealing flange arranged at the opening end of the upper cover body, and the outer circumferential wall of the sealing flange is matched with the inner side wall of the lower cover body.

Through adopting above-mentioned technical scheme, sealing flange sets up in the open end of the corresponding lower lid of last lid, it is sealed with the mutual lock of lower lid to work as last lid, the opening terminal surface of going up the lid cooperates with the mutual butt of the opening terminal surface of lid down, the outer periphery wall of sealing flange cooperates with the mutual butt of the inside wall of lid down, make go up lid and lid closed gap down sealed by sealing flange, the infiltration from the closed gap of last lid and lower lid of external rainwater or impurity has been avoided, can prevent simultaneously that the lid from being prized open from closed gap when buckling each other with lower lid.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of an embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

the reference numbers in the figures mean: the valve comprises a valve cover-1, a clamping hole-11, a valve rod-2, an upper cover body-3, a first locking piece-31, a sealing flange-32, a lower cover body-4, a second locking piece-41, a locking pin hole-42, a through hole-43, a hinge piece-5, a connecting device-6, an elastic connecting mechanism-61, an elastic pressing piece-611, an inclined part-6111, a connecting part-6112, a clamping piece-612, an elastic piece-613, a marble-614, a spring piece groove-615, a pressing mechanism-62, a pressing nut-621 and a pressing gasket-622.

Detailed Description

The present embodiment is only an explanation of the present embodiment, and it is not a limitation of the present embodiment, and a person skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present embodiment.

Referring to fig. 1-3, the present embodiment discloses a valve lock cover, including an upper cover body 3 and a lower cover body 4 cooperatively connected with the upper cover body 3 through a hinge 5, the other side of the upper cover body 3 opposite to the hinge 5 is provided with a first locking member 31, the lower cover body 4 is provided with a second locking member 41 corresponding to the first locking member 31, the first locking member 31 and the second locking member 41 are respectively provided with locking pin holes 42 having the same size, the bottom surface of the lower cover body 4 is provided with a through hole 43 matching with the valve rod 2, the bottom surface of the lower cover body 4 is further provided with a connecting device 6, the lower cover body 4 is cooperatively connected with the valve cap 1 through the connecting device 6, the connecting device 6 includes an elastic connecting mechanism 61 for preventing the lower cover body 4 from circumferentially rotating after abutting and matching with the valve cap 1, and a pressing mechanism 62 coaxially arranged with the through hole 43 and used for pressing the elastic connecting mechanism, elastic connection mechanism 61 encircles the equidistant setting in center of through-hole 43, the upper end of valve gap 1 corresponds elastic connection mechanism 61 department and is equipped with joint hole 11, joint hole 11 and elastic connection mechanism 61 phase-match, hold-down mechanism 62 set up in be connected with the cooperation of valve rod 2 through the screw thread in the cavity of lower lid 4, hold-down mechanism 62 lower bottom surface with elastic connection mechanism 61's last top surface mutually supports the butt. By adopting the technical scheme, the handle of the valve is taken down to expose the valve rod 2, the valve rod 2 passes through the through hole 43 on the bottom surface of the lower cover body 4 to be arranged so that the lower bottom surface of the lower cover body 4 is mutually abutted with the upper top surface of the valve cover 1, the valve cover 1 is provided with the clamping hole 11, the elastic connecting mechanism 61 of the connecting device 6 is arranged on the bottom surface of the lower cover body 4 at equal intervals around the center of the through hole 43, the elastic connecting mechanism 61 is clamped into the clamping hole 11, the pressing mechanism 62 is arranged on the elastic connecting device 6, the pressing mechanism 62 is matched and connected with the valve rod 2 through threads, the pressing mechanism 62 is mutually screwed with the valve rod 2 through threads so that the lower bottom surface of the pressing mechanism 62 is mutually abutted and matched with the upper top surface of the elastic connecting mechanism 61, the elastic connecting mechanism 61 can be fully clamped into the clamping hole 11, the lower cover body 4 is more stably connected with the valve cover 1, the upper, make the tip of valve rod 2 set up in the cavity that last lid 3 and lower lid 4 make up into, go up lid 3 and the mutual lock back of lid 4 down, go up the lower bottom surface of first locking piece 31 on the lid 3 and the mutual butt cooperation of last top surface of second locking piece 41 on the lid 4 down, locking pinhole 42 on the first locking piece 31 and the locking pinhole 42 on the second locking piece 41 are coaxial setting, pass locking pinhole 42 through tool to lock or other locking device, lock first locking piece 31 and second locking piece 41, make the lock of going up lid 3 and lower lid 4 lock, realize the protection to valve rod 2, avoid other people to utilize the instrument to rotate valve rod 2 and operate the valve. The elastic connecting mechanism 61 is matched with the clamping hole 11, so that the circumferential rotation caused by stress after the lower cover body 4 is abutted and matched with the valve cover 1 is avoided; hold-down mechanism 62 is connected through the screw thread and the cooperation of valve rod 2 in the through-hole 43, hold-down mechanism 62's lower bottom surface and elastic connection mechanism 61 last top surface butt each other for elastic connection mechanism 61 and the abundant joint of joint hole 11, lid 4 and valve gap 1 throw off down when also having avoided lid 4 or last lid 3 under the axial direction pulling of valve rod 2, make lid 4 and valve gap 1's connection more firm down, the theftproof performance of the valve locking lid of improvement.

The embodiment further provides that: the elastic connecting mechanism 61 comprises an elastic pressing piece 611 with a cross section shaped like a Chinese character 'ji', a clamping piece 612, an elastic piece 613, a marble 614 and an elastic piece groove 615, the elastic piece groove 615 is arranged on the bottom surface of the lower cover body 4 at equal intervals around the center of the through hole 43, the elastic pressing piece 611 comprises an inclined portion 6111 and a connecting portion 6112 connected with the inclined portion 6111, the other end of the inclined portion 6111, opposite to the connecting portion 6112, is connected with one side of the elastic piece groove 615, corresponding to the through hole 43, the clamping piece 612 is arranged on one side of the inner bottom surface of the lower cover body 4, corresponding to the connecting portion 6112, and penetrates through the marble groove 615, the elastic piece 613 is sleeved on the clamping piece 612 and penetrates through the marble groove 615, one end of the elastic piece 613 is connected with the connecting portion 6112, the other end of the elastic piece is connected with the marble 614 in a matched manner, and. By adopting the above technical scheme, the elastic sheet groove 615 is equidistantly arranged on the bottom surface of the lower cover body 4 around the center of the through hole 43, the elastic pressing piece 611 comprises an inclined portion 6111 and a connecting portion 6112, one end of the inclined portion 6111 is connected with one side of the elastic sheet groove 615 on the lower cover body 4 in a matched manner, the other end of the inclined portion 6111 is connected with the connecting portion 6112, the clamping member 612 is arranged on one side of the connecting portion 6112 corresponding to the bottom surface of the lower cover body 4 and penetrates through the elastic sheet groove 615, the elastic member 613 is sleeved on the clamping member 612 and penetrates through the elastic sheet groove 615, one end of the elastic member 613 is connected with the connecting portion 6112, the other end of the elastic member is connected with the marble 614, the lower bottom surface of the lower cover body 4 is mutually abutted and matched with the upper bottom surface of the valve cover 1, the elastic sheet groove 615 of the elastic connecting mechanism 61 is opposite to the clamping hole 11 on the valve cover 1, the clamping member, when the pressing mechanism 62 is screwed downwards along the axial direction of the valve rod 2, the lower bottom surface of the pressing mechanism 62 is abutted to the upper top surface of the connecting portion 6112 of the elastic pressing piece 611, the pressing mechanism 62 applies force to the connecting portion 6112 to press the connecting portion 6112, the connecting portion 6112 presses the inner bottom surface of the lower cover body 4 downwards, the inclined portion 6111 of the elastic pressing piece 611 is gradually close to the inner ground surface of the lower cover body 4, the clamping piece 612, the elastic piece 613 and the marble 614 arranged on the connecting portion 6112 are better clamped into the clamping groove, and the lower cover body 4 is more stably connected with the valve cover 1. The clamping piece 612 is matched with the clamping hole 11, so that the circumferential rotation caused by stress after the lower cover body 4 and the valve cover 1 are mutually abutted and matched is avoided; when the fastening hole 11 is the through hole 43, the elastic member 613 and the marble 614 are disposed to prevent external impurities or media from penetrating into the lower cover 4 through the fastening hole 11; when the joint hole 11 is a blind hole, the marble 614 and the elastic piece 613 are arranged in the joint hole 11, the marble 614 and the bottom surface of the joint hole 11 are mutually abutted, the elastic piece 613 has an elastic compensation function, the pressing mechanism 62 presses the elastic connecting mechanism 61, and the elastic piece 613 can automatically compensate pressing force, so that the pressing effect of the pressing mechanism 62 is better, and the connection stability and reliability are improved.

The embodiment further provides that: the elastic member 613 is a spring. By adopting the above technical solution, the elastic element 613 is a spring, which has good elastic compensation capability, so that the whole structure of the device is simple and compact.

The embodiment further provides that: the pressing mechanism 62 includes a pressing nut 621 and a pressing gasket 622, the pressing gasket 622 is sleeved on the valve rod 2, the lower bottom surface of the pressing gasket 622 is mutually matched and abutted with the upper top surface of the connecting portion 6112, the locking nut is sleeved on the valve rod 2 and is matched and connected with the valve rod 2 through threads, and the lower bottom surface of the locking nut is mutually abutted with the upper top surface of the pressing gasket 622. Through adopting above-mentioned technical scheme, hold-down mechanism 62's pressure pad 622 cover establish with the valve rod 2 on, the lower bottom surface of pressure pad 622 and the connecting portion 6112 of elasticity preforming 611 butt each other, gland nut 621 is connected with the cooperation of valve rod 2 through the screw thread, gland nut 621 screws downwards along the axial direction of valve rod 2, make gland nut 621 lower bottom surface and the last top surface of pressure pad 622 butt each other, gland nut 621 is to pressure pad 622 application of force, make pressure pad 622 to connecting portion 6112 application of force, connecting portion 6112 receives decurrent pressure, drive joint spare 612 on the connecting portion 6112, elastic component 613 and marble 614 are the mutual joint cooperation with joint hole 11 better, make lower lid 4 and valve gap 1 be connected more firmly.

The embodiment further provides that: the upper cover body 3 is also provided with a sealing structure matched with the lower cover body 4, the sealing structure is a sealing flange 32 arranged at the opening end of the upper cover body 3, and the outer circumferential wall of the sealing flange 32 is matched with the inner side wall of the lower cover body 4. Through adopting above-mentioned technical scheme, sealing flange 32 sets up in the open end of upper cover body 3 corresponding lid 4 down, it is sealed with lid 4 mutual lock down to work as upper cover body 3, the opening terminal surface of upper cover body 3 and the mutual butt cooperation of the opening terminal surface of lid 4 down, sealing flange 32's outer periphery wall and the mutual butt cooperation of the inside wall of lid 4 down, make upper cover body 3 sealed by sealing flange 32 with lid 4 closed gap down, the infiltration from the closed gap of upper cover body 3 with lid 4 has been avoided external rainwater or impurity, can prevent simultaneously that upper cover body 3 from being prized from closed gap department when lid 4 is mutual lock.

Although the valve cap-1, the snap hole-11, the valve stem-2, the upper cover-3, the first locking member-31, the sealing flange-32, the lower cover-4, the second locking member-41, the locking pin hole-42, the through hole-43, the hinge-5, the connecting means-6, the elastic connecting mechanism-61, the elastic pressing piece-611, the inclined portion-6111, the connecting portion-6112, the snap member-612, the elastic member-613, the marble-614, the elastic piece groove-615, the pressing mechanism-62, the pressing nut-621 and the pressing washer-622 are more commonly used herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present embodiments; they are to be construed as being without limitation to any one of the additional limitations which are within the spirit of the present embodiments.

Claims

1. A valve locking closure, characterized by: the valve cover comprises an upper cover body and a lower cover body which is connected with the upper cover body in a matched mode through an articulated piece, a first locking piece is arranged on the other side, opposite to the articulated piece, of the upper cover body, a second locking piece is arranged at the position, corresponding to the first locking piece, of the lower cover body, locking pin holes which are the same in size are formed in the first locking piece and the second locking piece respectively, a through hole matched with a valve rod is formed in the bottom surface of the lower cover body, a connecting device is further arranged on the bottom surface of the lower cover body, the lower cover body is connected with the valve cover in a matched mode through the connecting device, the connecting device comprises an elastic connecting mechanism used for preventing the lower cover body from rotating in the circumferential direction after being abutted and matched with the valve cover and a pressing mechanism which is coaxially arranged with the through hole and used for pressing the elastic connecting, the clamping hole is matched with the elastic connection mechanism, the pressing mechanism is arranged in the cavity of the lower cover body and is in matched connection with the valve rod through threads, and the lower bottom surface of the pressing mechanism is in matched butt connection with the upper top surface of the elastic connection mechanism.

2. A valve closure according to claim 1, wherein: elastic connection mechanism includes that the cross section is the elasticity preforming, joint spare, elastic component, marble, the shell fragment groove of "factory" font, the center equidistant setting that the shell fragment groove encircles the through-hole in the bottom surface of lid down, the elasticity preforming includes the rake and the connecting portion of being connected with the rake, the other end of the relative connecting portion of rake is connected with one side that the shell fragment groove corresponds the through-hole, the joint spare sets up in connecting portion correspond the interior bottom surface one side of lid down and run through the shell fragment groove, the elastic component cover is located on the joint spare and is run through the shell fragment groove, the one end and the connecting portion of elastic component are connected, and the other end is connected with the marble cooperation, hold-down mechanism's lower bottom surface and the mutual butt cooperation of last top surface of connecting portion.

3. A valve closure according to claim 2, wherein: the elastic piece is a spring.

4. A valve closure according to claim 3, wherein: the pressing mechanism comprises a pressing nut and a pressing gasket, the pressing gasket is sleeved on the valve rod, the lower bottom surface of the pressing gasket is mutually matched and abutted with the upper top surface of the connecting portion, the locking nut is sleeved on the valve rod and is matched and connected with the valve rod through threads, and the lower bottom surface of the locking nut is mutually abutted with the upper top surface of the pressing gasket.

5. A valve closure according to claim 4, wherein: the upper cover body is further provided with a sealing structure matched with the lower cover body, the sealing structure is a sealing flange arranged at the opening end of the upper cover body, and the outer circumferential wall of the sealing flange is matched with the inner side wall of the lower cover body.