CN212480207U - Ball valve with improved valve rod connecting structure - Google Patents
Ball valve with improved valve rod connecting structure Download PDFInfo
- Publication number
- CN212480207U CN212480207U CN202021108989.5U CN202021108989U CN212480207U CN 212480207 U CN212480207 U CN 212480207U CN 202021108989 U CN202021108989 U CN 202021108989U CN 212480207 U CN212480207 U CN 212480207U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- fixing
- ball
- fixing cap
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a ball valve with an improved valve rod connecting structure, a fixing cap is fixedly matched with a valve rod in a clamping way, a frustum-shaped channel is arranged inside the fixing cap, and a sealing layer is arranged between the valve rod and the fixing cap; the upper end of the valve body is provided with an internal thread through hole, and the internal thread through hole is connected with a detachable fixing cap through threads; the top of the valve ball is provided with a fixing groove, and the upper part of the fixing groove is a fixing area; the lower part of the fixed groove is a placing area; the utility model has the advantages that the installation process of the valve rod is simple, and the fixing cap is convenient to replace and maintain; the valve rod is pressed to the fixing cap by the elastic component, and the sealing effect between the valve rod and the fixing cap can be ensured due to the frustum-shaped channel structure in the fixing cap.
Description
Technical Field
The utility model belongs to ball valve structure field, concretely relates to ball valve with improve valve rod connection structure.
Background
The seven valves of the prior gate valve, stop valve, plunger valve, butterfly valve, plug valve, diaphragm valve and ball valve account for more than 80 percent of the total valve. The ball valve has the advantages of small fluid resistance, no restriction on flow direction, quick opening and closing, low height and the like, and has better comprehensive performance.
In the ball valve, the fixing and waterproofing of the valve stem are relatively complicated. A plurality of fasteners are required to attach the valve stem to the valve body and to the valve ball. The waterproof sealing effect between valve rod and the valve body is especially important, and the connection structure of valve rod has multiple waterproof settings, also is inconvenient influence to the installation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the technical problem who exists among the above-mentioned background art, providing a ball valve with improve valve rod connection structure.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
a ball valve with an improved valve rod connecting structure comprises a valve body, a valve ball, a valve seat, a sealing structure, a fixing cap, a valve rod and an elastic component.
The fixing cap and the valve rod form clamping fit, a frustum-shaped channel is arranged in the fixing cap, and the shape of the part of the valve rod matched with the fixing cap is consistent with that of the frustum-shaped channel; a sealing layer is arranged between the valve rod and the fixing cap; the upper end of the valve body is provided with an internal thread through hole, and the internal thread through hole is connected with a fixing cap in a detachable mode through threads.
The top of the valve ball is provided with a fixing groove, and the upper part of the fixing groove is a fixing area for fixing the valve rod; the lower part of the fixing groove is a placing area for placing the elastic component; the valve rod is pressed to the fixing cap by the elastic component, and the sealing effect between the valve rod and the fixing cap can be ensured due to the frustum-shaped channel structure in the fixing cap.
The valve body both ends detachable connect the disk seat, the disk seat is equipped with seal structure with the position that supports of valve ball.
In the specific installation process, firstly, the valve ball is installed in the valve body, the elastic component is installed in the placing area at the lower part of the fixing groove, the valve rod penetrates through the internal thread through hole to be connected with the fixing area at the upper part of the fixing groove, the fixing cap is sleeved on the valve rod and then screwed into the internal thread through hole, the valve seat is connected to two ends of the valve body, and finally the valve ball bottom fixing mechanism is connected.
Preferably, the sealing layer is sleeved and fixed on the valve rod, so that replacement and maintenance are facilitated.
Optionally, the sealing layer is sealed on the valve rod, so that the sealing layer does not need to be fixed, and the operation is convenient.
Optionally, the sealing structure is a sealing plastic ring.
Preferably, a ring groove is formed in the sealing layer, a sealing ring is arranged in the ring groove, and the sealing ring assists in sealing effect of the sealing layer.
Preferably, be fixed with rain-proof cap on the valve rod, the cooperation gap of valve rod and locking cap is sheltered from to rain-proof cap, the fixed mode of rain-proof cap on the valve rod can be threaded connection etc..
The utility model provides a ball valve with improved valve rod connection structure, the installation process of the valve rod is simple, and the fixing cap is convenient for replacement and maintenance; the valve rod is pressed to the fixing cap by the elastic component, and the sealing effect between the valve rod and the fixing cap can be ensured due to the frustum-shaped channel structure in the fixing cap.
Drawings
FIG. 1 is a schematic view of the fitting of the fixing cap, the valve rod and the valve body of the present invention;
FIG. 2 is a schematic view of the position of the valve ball in the valve body according to the present invention;
FIG. 3 is a partial enlarged view of the fitting of the fixing cap, the valve rod and the valve body of the present invention;
reference numerals: the valve comprises a valve body (1), an internal thread through hole (101), a valve ball (2), a fixing groove (21), a valve seat (3), a sealing structure (4), a fixing cap (5), a valve rod (6), an elastic component (7), a sealing layer (61) and a sealing ring (62).
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1 to 3, a ball valve having an improved valve stem coupling structure includes a valve body 1, a valve ball 2, a valve seat 3, a sealing structure 4, a fixing cap 5, a valve stem 6, and an elastic member 7.
The fixing cap 5 and the valve rod 6 form clamping fit, a frustum-shaped channel is arranged in the fixing cap 5, and the shape of the part, matched with the fixing cap 5, of the valve rod 6 is consistent with that of the frustum-shaped channel; a sealing layer 61 is arranged between the valve rod 6 and the fixing cap 5; the upper end of the valve body 1 is provided with an internal thread through hole 101, and the internal thread through hole 101 is detachably connected with a fixing cap 5 through thread connection.
The top of the valve ball 2 is provided with a fixing groove 21, and the upper part of the fixing groove 21 is a fixing area for fixing the valve rod 6; the lower part of the fixing groove 21 is a placing area for placing the elastic component 7; the valve rod 6 is pressed to the fixing cap 5 by the elastic component 7, and due to the frustum-shaped channel structure in the fixing cap 5, the sealing effect between the valve rod 6 and the fixing cap 5 can be ensured.
The valve body 1 both ends detachable connect disk seat 3, disk seat 3 and the position of leaning on of valve ball 2 are equipped with seal structure 4. The sealing structure 4 is a sealing plastic ring.
The sealing layer 61 is sealed on the valve rod 6, so that the sealing layer 61 does not need to be fixed additionally, and the operation is convenient.
In a specific implementation, a ring groove (not shown) is formed in the sealing layer 61, a sealing ring 62 is arranged in the ring groove, and the sealing ring 62 assists in the sealing effect of the sealing layer 61.
In the specific installation process, firstly, the valve ball 2 is installed in the valve body 1, the elastic component 7 is installed in the placing area at the lower part of the fixing groove 21, the valve rod 6 penetrates through the internal thread through hole 101 to be connected with the fixing area at the upper part of the fixing groove 21, the fixing cap 5 is sleeved on the valve rod 6 and then screwed into the internal thread through hole 101, the valve seat 3 is connected to two ends of the valve body 1, and finally, a fixing mechanism (not shown) at the bottom of the valve ball 2 is connected.
Example 2:
The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The embodiment is only a single implementation manner of the present invention, and for those skilled in the art, other embodiments can be obtained according to the attached drawings without any creative effort, and are also within the protection scope of the present invention.
Claims (6)
1. A ball valve with an improved valve rod connecting structure is characterized in that: the valve comprises a valve body, a valve ball, a valve seat, a sealing structure, a fixing cap, a valve rod and an elastic component;
the fixing cap and the valve rod form clamping fit, a frustum-shaped channel is arranged in the fixing cap, and the shape of the part of the valve rod matched with the fixing cap is consistent with that of the frustum-shaped channel; a sealing layer is arranged between the valve rod and the fixing cap; the upper end of the valve body is provided with an internal thread through hole, and the internal thread through hole is connected with a fixing cap in a detachable mode through threads;
the top of the valve ball is provided with a fixing groove, and the upper part of the fixing groove is a fixing area; the lower part of the fixing groove is a placing area;
the valve body both ends detachable connect the disk seat, the disk seat is equipped with seal structure with the position that supports of valve ball.
2. The ball valve with improved valve stem connection structure of claim 1, wherein the sealing layer is sleeved and fixed on the valve stem.
3. The ball valve having an improved stem connection of claim 1, wherein said sealing layer seals to the stem.
4. The ball valve having an improved stem attachment configuration as claimed in claim 1, wherein said sealing structure is a sealing plastic ring.
5. The ball valve with the improved valve rod connecting structure as claimed in claim 3, wherein the sealing layer is provided with a ring groove, and a sealing ring is arranged in the ring groove.
6. The ball valve with the improved valve rod connecting structure as claimed in claim 3, wherein a rain cap is fixed on the valve rod, and the rain cap shields a matching gap between the valve rod and the fixed cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108989.5U CN212480207U (en) | 2020-06-16 | 2020-06-16 | Ball valve with improved valve rod connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108989.5U CN212480207U (en) | 2020-06-16 | 2020-06-16 | Ball valve with improved valve rod connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212480207U true CN212480207U (en) | 2021-02-05 |
Family
ID=74417688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021108989.5U Expired - Fee Related CN212480207U (en) | 2020-06-16 | 2020-06-16 | Ball valve with improved valve rod connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212480207U (en) |
-
2020
- 2020-06-16 CN CN202021108989.5U patent/CN212480207U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 Termination date: 20210616 |