Valve flashboard linkage mechanism and valve

Abstract

The utility model discloses a valve flashboard linkage mechanism and a valve and relates to the technical field of valves, the valve flashboard linkage mechanism comprises a wrench, a connecting rod, a flashboard and a sleeve, the wrench is fixedly arranged at one end of the connecting rod, the flashboard is fixedly connected with the sleeve, the sleeve is sleeved on the connecting rod, the sleeve is provided with a limiting hole, and the connecting rod is provided with a free section and a first limiting section. The free section is used for being arranged in the limiting hole after flow regulation is completed, the free section can rotate relative to the sleeve in the limiting hole, the first limiting section is located between the free section and the wrench, the first limiting section is used for being arranged in the limiting hole during flow regulation, the first limiting section can be connected with the limiting hole in a clamped mode, and the wrench is moved in the direction of the center line of the connecting rod. The free section or the first limiting section can be arranged in the limiting hole; according to the utility model, the risk that the flashboard is opened or closed due to the fact that the wrench is mistakenly touched can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve gate linkage mechanism and a valve. Background Art

[0002] Currently, the gate of most manually controlled valves is connected to a valve wrench via a connecting rod. When the wrench is pulled, the valve gate rotates accordingly, controlling the flow of the medium passing through the valve. However, in actual use, there is a risk that the valve gate could be opened or closed by someone accidentally touching the wrench, which could easily cause water or gas outages, or even serious safety accidents. Utility Model Content

[0003] The purpose of the utility model is to provide a valve gate linkage mechanism and a valve to solve the problems existing in the above-mentioned prior art and to effectively reduce the risk of the gate being opened or closed due to the wrench being accidentally touched.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] The utility model provides a valve gate linkage mechanism, including a wrench, a connecting rod, a gate and a sleeve, the wrench is fixedly arranged at one end of the connecting rod, the gate is fixedly connected to the sleeve, the sleeve is sleeved on the connecting rod, a limiting hole is provided on the sleeve, the connecting rod has a free section and a first limiting section, the free section is used to be placed in the limiting hole after flow adjustment is completed, the free section can rotate relative to the sleeve in the limiting hole, the first limiting section is located between the free section and the wrench, the first limiting section is used to be placed in the limiting hole during flow adjustment, the first limiting section can be engaged with the limiting hole, and the wrench is moved in the direction of the center line of the connecting rod, so that the free section or the first limiting section can be placed in the limiting hole.

[0006] Preferably, it also includes a first support seat and a first elastic member, the first support seat is fixed in the valve housing, a first avoidance hole is opened on the first support seat, the first avoidance hole can avoid the end of the connecting rod away from the wrench, one end of the first elastic member is in contact with the first support seat, and the other end of the first elastic member is in contact with the connecting rod; when the connecting rod moves toward the limiting hole in the first limiting section, the first elastic member can be compressed.

[0007] Preferably, the connecting rod has a second limiting section, the free section and the first limiting section in sequence, the second limiting section is used to be placed in the limiting hole during flow adjustment, the second limiting section can be engaged with the limiting hole, and the free section, the first limiting section or the second limiting section can be placed in the limiting hole by moving the wrench in the direction of the center line of the connecting rod.

[0008] Preferably, one end of the first elastic member is fixedly connected to the first support seat, and the other end of the first elastic member is fixedly connected to the connecting rod.

[0009] Preferably, it also includes a second support seat and a second elastic member, the second support seat is fixed in the valve housing, a second avoidance hole is opened on the second support seat, the second avoidance hole can avoid the end of the connecting rod away from the first support seat, one end of the second elastic member is in contact with the second support seat, and the other end of the second elastic member is in contact with the connecting rod; when the connecting rod moves toward the limiting hole in the second limiting section, the second elastic member can be compressed.

[0010] Preferably, one end of the second elastic member is fixedly connected to the second support seat, and the other end of the second elastic member is fixedly connected to the connecting rod.

[0011] Preferably, the cross section of the free section is circular, the cross section of the first limiting section is a regular hexagon, and the inner side wall of the limiting hole fits with the outer side wall of the first limiting section.

[0012] Preferably, the cross section of the free section is circular, the cross section of the first limiting section is a regular quadrilateral, and the inner side wall of the limiting hole fits with the outer side wall of the first limiting section.

[0013] Preferably, the wrench is bolted to the connecting rod.

[0014] The utility model further provides a valve, comprising a valve housing and the valve gate linkage mechanism as described above, wherein the gate is arranged in the valve housing, and the wrench is arranged outside the valve housing.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The valve gate linkage mechanism and valve provided by the present invention, when it is necessary to adjust the gate position to adjust the flow, the first limit section is moved into the limit hole, and the first limit section is fixed to the limit hole by clamping, and the connecting rod is driven to rotate by pulling the wrench, thereby driving the sleeve and the gate to rotate. When the gate position needs to be fixed after the flow adjustment is completed, the first limit section is moved out of the limit hole, and the free section is moved into the limit hole. Since the free section can rotate relative to the sleeve in the limit hole, even if the wrench is accidentally touched and the connecting rod rotates, the sleeve and the gate will not rotate accordingly. The artificial addition of the confirmation step increases the confirmation mechanism of the regulating valve, reduces the possibility of misoperation, realizes the safe control of the opening and closing of the gate, and can effectively reduce the risk of the gate being opened or closed due to the wrench being accidentally touched. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the valve gate linkage mechanism provided by the utility model;

[0019] In the figure: 1-wrench, 2-connecting rod, 3-gate, 4-sleeve, 5-limiting hole, 6-free section, 7-first limiting section, 8-first supporting seat, 9-first elastic member, 10-second limiting section. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The purpose of the utility model is to provide a valve gate linkage mechanism and a valve to solve the problems existing in the above-mentioned prior art and to effectively reduce the risk of the gate being opened or closed due to the wrench being accidentally touched.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Example 1

[0024] like Figure 1 As shown, this embodiment provides a valve gate linkage mechanism, including a wrench 1, a connecting rod 2, a gate 3 and a sleeve 4. The wrench 1 is fixedly arranged at one end of the connecting rod 2, the gate 3 is fixedly connected to the sleeve 4, the sleeve 4 is sleeved on the connecting rod 2, and a limiting hole 5 is provided on the sleeve 4. The connecting rod 2 has a free section 6 and a first limiting section 7. The free section 6 is used to be placed in the limiting hole 5 after the flow adjustment is completed. The free section 6 can rotate relative to the sleeve 4 in the limiting hole 5. The first limiting section 7 is located between the free section 6 and the wrench 1. The first limiting section 7 is used to be placed in the limiting hole 5 during flow adjustment. The first limiting section 7 can be engaged with the limiting hole 5. Moving the wrench 1 in the direction of the center line of the connecting rod 2 can place the free section 6 or the first limiting section 7 in the limiting hole 5.

[0025] The valve gate linkage mechanism provided in this embodiment has the following features: when it is necessary to adjust the position of the gate 3 to adjust the flow, the first limiting section 7 is moved into the limiting hole 5, and the first limiting section 7 is fixed with the limiting hole 5 by clamping, and the wrench 1 is pulled to drive the connecting rod 2 to rotate, thereby driving the sleeve 4 and the gate 3 to rotate. After the flow adjustment is completed and the position of the gate 3 needs to be fixed, the first limiting section 7 is moved out of the limiting hole 5, and the free section 6 is moved into the limiting hole 5. Since the free section 6 can rotate relative to the sleeve 4 in the limiting hole 5, even if the wrench 1 is accidentally touched and the connection is When the rod 2 rotates, the sleeve 4 and the gate 3 will not rotate accordingly. The artificial addition of the confirmation step increases the confirmation mechanism of the regulating valve, reduces the possibility of misoperation, and realizes the safe control of the opening and closing of the gate 3. It can effectively reduce the risk of the gate 3 being opened or closed due to the wrench 1 being accidentally touched, and can improve the inherent safety of equipment and facilities, reduce the risk of water and gas outages, and reduce the risk of serious safety accidents. In addition, the valve gate linkage mechanism provided in this embodiment is a purely mechanical structure, which does not require the addition of a circuit control identification system, etc., and has a simple and reliable structure.

[0026] Furthermore, the valve gate linkage mechanism provided in this embodiment also includes a first support seat 8 and a first elastic member 9. The first support seat 8 is fixed in the valve housing. A first avoidance hole is opened on the first support seat 8. The first avoidance hole can avoid the end of the connecting rod 2 away from the wrench 1. One end of the first elastic member 9 contacts the first support seat 8, and the other end of the first elastic member 9 contacts the connecting rod 2; when the connecting rod 2 moves toward the limiting hole 5 in the first limiting section 7, the first elastic member 9 can be compressed, which can facilitate the resetting of the connecting rod 2 and is easy to use; as a more preferred implementation method of this embodiment, the first elastic member 9 can be a spring.

[0027] Furthermore, the connecting rod 2 has a second limiting section 10, a free section 6 and a first limiting section 7 in sequence. The second limiting section 10 is used to be placed in the limiting hole 5 when the flow is adjusted. The second limiting section 10 can be engaged with the limiting hole 5. By moving the wrench 1 in the center line direction of the connecting rod 2, the free section 6, the first limiting section 7 or the second limiting section 10 can be placed in the limiting hole 5. The second limiting section 10 can be used interchangeably with the first limiting section 7. When the first limiting section 7 is needed, the connecting rod 2 is pressed inward, and when the second limiting section 10 is needed, the connecting rod 2 is pulled outward. It is flexible and convenient to use.

[0028] As a more preferred implementation of this embodiment, one end of the first elastic member 9 is fixedly connected to the first support seat 8, and the other end of the first elastic member 9 is fixedly connected to the connecting rod 2, so that the first elastic member 9 is stretched when the connecting rod 2 is pulled outward, which can facilitate the resetting of the connecting rod 2 and facilitate use.

[0029] As a more preferred implementation of this embodiment, the cross-section of the free section 6 is circular, the cross-section of the first limiting section 7 is a regular hexagon, the inner wall of the limiting hole 5 fits with the outer wall of the first limiting section 7, the structure is simple, and it is easy to use.

[0030] As another more preferred implementation of this embodiment, the cross-section of the free section 6 is circular, the cross-section of the first limiting section 7 is a regular quadrilateral, the inner wall of the limiting hole 5 fits with the outer wall of the first limiting section 7, the structure is simple, and it is easy to use.

[0031] It should be noted here that the cross-section of the free section 6 is not limited to a circle, and the cross-section of the first limiting section 7 is not limited to a regular quadrilateral or a regular hexagon. The shape of the cross-section of the free section 6 and the shape of the cross-section of the first limiting section 7 can be different or the same. For example, the shape of the cross-section of the free section 6 and the shape of the cross-section of the first limiting section 7 can both be regular quadrilaterals, but the size of the cross-section of the free section 6 needs to be smaller than the size of the cross-section of the first limiting section 7.

[0032] As a more preferred implementation of this embodiment, the wrench 1 is connected to the connecting rod 2 by bolts, which is easy to manufacture and use.

[0033] Example 2

[0034] The valve gate linkage mechanism provided in this embodiment is different from the valve gate linkage mechanism in Example 1 in that the valve gate linkage mechanism provided in this embodiment also includes a second support seat and a second elastic member. The second support seat is fixed in the valve housing. A second avoidance hole is opened on the second support seat. The second avoidance hole can avoid the end of the connecting rod 2 away from the first support seat 8. One end of the second elastic member contacts the second support seat, and the other end of the second elastic member contacts the connecting rod 2. When the connecting rod 2 moves toward the limiting hole 5 in the second limiting section 10, the second elastic member can be compressed, which can facilitate the resetting of the connecting rod 2 and is easy to use.

[0035] Furthermore, one end of the second elastic member is fixedly connected to the second support seat, and the other end of the second elastic member is fixedly connected to the connecting rod 2. The second elastic member can be used in conjunction with the first elastic member 9 to improve the movement stability of the connecting rod 2.

[0036] Example 3

[0037] This embodiment provides a valve, including a valve housing and the valve gate linkage mechanism of embodiment one or embodiment two, the gate 3 is arranged in the valve housing, and the wrench 1 is arranged outside the valve housing. A limiting structure for the gate 3 needs to be provided in the valve housing. The limiting structure can be but is not limited to an annular groove. During adjustment, the gate 3 rotates with the connecting rod 2 in the annular groove, and the annular groove can prevent the gate 3 from moving in a direction parallel to the center line of the connecting rod 2.

[0038] In the valve provided in this embodiment, when it is necessary to adjust the position of the gate plate 3 to adjust the flow, the first limiting section 7 is moved into the limiting hole 5, and the first limiting section 7 is fixedly engaged with the limiting hole 5. By pulling the wrench 1, the connecting rod 2 is driven to rotate, and then the sleeve 4 and the gate plate 3 are driven to rotate. After the flow adjustment is completed and the position of the gate plate 3 needs to be fixed, the first limiting section 7 is moved out of the limiting hole 5, and the free section 6 is moved into the limiting hole 5. Since the free section 6 can rotate relative to the sleeve 4 in the limiting hole 5, even if the wrench 1 is accidentally touched and causes the connecting rod 2 to rotate, The sleeve 4 and the gate 3 will not rotate accordingly. The artificial addition of the confirmation step increases the confirmation mechanism of the regulating valve, reduces the possibility of misoperation, and realizes the safe control of the opening and closing of the gate 3. It can effectively reduce the risk of the gate 3 being opened or closed due to the wrench 1 being accidentally touched, and can improve the inherent safety of equipment and facilities, reduce the risk of water and gas outages, and reduce the risk of serious safety accidents. In addition, the valve gate linkage mechanism in the valve provided in this embodiment is a purely mechanical structure, which does not require the addition of a circuit control identification system, etc., and has a simple and reliable structure.

[0039] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A valve gate linkage mechanism, characterized by: It includes a wrench, a connecting rod, a gate plate and a sleeve, the wrench is fixedly arranged at one end of the connecting rod, the gate plate is fixedly connected to the sleeve, the sleeve is sleeved on the connecting rod, a limiting hole is provided on the sleeve, the connecting rod has a free section and a first limiting section, the free section is used to be placed in the limiting hole after the flow adjustment is completed, the free section can rotate relative to the sleeve in the limiting hole, the first limiting section is located between the free section and the wrench, the first limiting section is used to be placed in the limiting hole during flow adjustment, the first limiting section can be engaged with the limiting hole, and the wrench is moved in the direction of the center line of the connecting rod, so that the free section or the first limiting section can be placed in the limiting hole.

2. The valve gate linkage mechanism according to claim 1, characterized in that: The valve body further comprises a first support seat and a first elastic member, wherein the first support seat is fixedly disposed in the valve housing, a first avoidance hole is formed on the first support seat, and the first avoidance hole can avoid an end of the connecting rod away from the wrench, one end of the first elastic member contacts the first support seat, and the other end of the first elastic member contacts the connecting rod; The connecting rod can compress the first elastic member when the first limiting section moves toward the limiting hole.

3. The valve gate linkage mechanism according to claim 2, characterized in that: The connecting rod has a second limiting section, a free section and the first limiting section in sequence. The second limiting section is used to be placed in the limiting hole during flow adjustment. The second limiting section can be engaged with the limiting hole. By moving the wrench in the direction of the center line of the connecting rod, the free section, the first limiting section or the second limiting section can be placed in the limiting hole.

4. The valve gate linkage mechanism according to claim 3, characterized in that: One end of the first elastic member is fixedly connected to the first support seat, and the other end of the first elastic member is fixedly connected to the connecting rod.

5. The valve gate linkage mechanism according to claim 3, characterized in that: It also includes a second support seat and a second elastic member. The second support seat is fixed in the valve housing. A second avoidance hole is opened on the second support seat. The second avoidance hole can avoid the end of the connecting rod away from the first support seat. One end of the second elastic member is in contact with the second support seat, and the other end of the second elastic member is in contact with the connecting rod; when the second limiting section of the connecting rod moves toward the limiting hole, the second elastic member can be compressed.

6. The valve gate linkage mechanism according to claim 5, characterized in that: One end of the second elastic member is fixedly connected to the second support seat, and the other end of the second elastic member is fixedly connected to the connecting rod.

7. The valve gate linkage mechanism according to claim 1, characterized in that: The cross section of the free section is circular, the cross section of the first limiting section is a regular hexagon, and the inner side wall of the limiting hole is in contact with the outer side wall of the first limiting section.

8. The valve gate linkage mechanism according to claim 1, characterized in that: The cross section of the free section is circular, the cross section of the first limiting section is a regular quadrilateral, and the inner side wall of the limiting hole is in contact with the outer side wall of the first limiting section.

9. The valve gate linkage mechanism according to claim 1, characterized in that: The wrench is bolted to the connecting rod.

10. A valve, characterized in that: It comprises a valve housing and a valve gate linkage mechanism according to any one of claims 1 to 9, wherein the gate is arranged in the valve housing, and the wrench is arranged outside the valve housing.

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