DBB jacket valve with interlocking structure

Abstract

The invention relates to the field of flow control, in particular to a DBB jacket valve with an interlocking structure, which comprises a flow pipeline, two sides of the upper end of the flow pipeline are fixedly communicated with valve sealing holes, and valve devices are sleeved in the valve sealing holes; gear rotating supporting tables are fixedly connected to the two sides of the upper end of the flow pipeline on the inner sides of the valve sealing holes correspondingly, and transmission devices are arranged at the upper ends of the gear rotating supporting tables; an interlocking supporting frame is fixedly connected to the middle of the upper end of the flow pipeline, an interlocking device is arranged in the interlocking supporting frame in a sleeved mode, and the interlocking device mainly comprises a fastening locking frame, a first interlocking buckle and a second interlocking buckle. The DBB valve has the beneficial effects that by arranging the interlocking device, when the DBB valve is used, the interlocking buckle can be buckled through the fastening frame by adjusting the gold fastening screw rotating assembly, namely interlocking operation is completed, two independent ball valves can be locked and unlocked at the same time, after unlocking is conducted at the same time, the two ball valves still do not affect each other, and the safety of the DBB valve is improved. And the locking and unlocking efficiency of the valve is improved.

Description

Technical Field

[0001] The invention relates to the field of flow control, in particular to a DBB jacket valve with an interlocking structure. Background Art

[0002] The DBB valve is a valve with double-off and double-off and release functions. It consists of two sealing pairs. When in the closed position, the two sealing pairs can maintain a sealed state at the same time. The valve body in the middle cavity is equipped with an interface for discharging the medium pressure. This design is intended to replace the complex form of multiple valves in traditional pipelines, reduce leakage points in the system, quickly achieve discharge and closing functions, and at the same time save installation space to the maximum extent, simplify the installation procedure, and reduce the pressure of the pipeline system; the principle of the DBB valve is that its design allows two balls to be opened and closed at the same time, and each ball has an independent sealing pair to ensure that when any ball is closed, the entire system can achieve a completely sealed state.

[0003] Since traditional DBB valves are used independently of each other, when the ball valves on both sides are adjusted to the desired positions, the two ball valves need to be locked simultaneously to prevent the two ball valves from loosening. This operation requires two lockings, and when the two ball valves need to be unlocked at the same time, they still need to be unlocked one by one, which is cumbersome. Therefore, the present invention proposes a DBB jacketed valve with an interlocking structure to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a DBB jacketed valve with an interlocking structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a DBB jacketed valve with an interlocking structure, comprising a flow pipe, wherein both sides of the upper end of the flow pipe are fixedly connected with valve sealing holes, and a valve device is sleeved in the valve sealing hole; both sides of the upper end of the flow pipe are respectively fixedly connected with gear rotating support platforms on the inner side of the valve sealing hole, and a transmission device is arranged on the upper end of the gear rotating support platform; an interlocking support frame is fixedly connected to the middle of the upper end of the flow pipe, and an interlocking device is sleeved in the inner sleeve of the interlocking support frame, and the interlocking device mainly comprises a fastening locking frame, an interlocking buckle 1, and an interlocking buckle 2; a threaded hole is opened at the upper end of the interlocking support frame, and a fastening screw rotating assembly is sleeved in the threaded hole, and the lower end of the fastening screw rotating assembly is rotatably sleeved on the upper end surface of the fastening locking frame, and the cross-section of the inner groove of the fastening locking frame is trapezoidal; the fastening clamp in the fastening locking frame holds an interlocking buckle 1 and an interlocking buckle 2.

[0006] Preferably, the valve device comprises a valve wheel, a valve shaft is fixedly connected to the lower end surface of the valve wheel, a ball valve is fixedly connected to the lower end of the valve shaft, and the ball valve sealing sleeve is arranged in the flow pipe.

[0007] Preferably, a driving gear is fixedly connected to the outer side of the valve shaft at the upper end of the valve sealing hole, and a transmission device is connected to the right gear of the driving gear. The transmission device includes a transmission gear, and the transmission gear shaft is connected to the upper end of the gear rotation support platform.

[0008] Preferably, the outer gear of the driving gear is connected to a transmission gear, the upper end of the transmission gear is fixedly connected to a pulling turntable, the eccentric part of the upper end surface of the pulling turntable is fixedly connected to a pulling shaft, the outer shaft sleeve of the pulling shaft is provided with a pulling rod, the end shaft of the pulling rod is connected to a propulsion rod, the end of the propulsion rod is fixedly connected to a transverse limiting sliding frame, and the left end of the transverse limiting sliding frame is fixedly connected to a blocking frame.

[0009] Preferably, a sliding sleeve is provided in the transverse limiting sliding frame, wherein an interlocking buckle 1 is fixedly connected to the left end face of the interlocking sliding frame on the left side of the interlocking support frame, an inner end of the interlocking buckle 1 is provided with an inner plug-in groove, a plurality of elastic bent frames are fixedly connected to the end face of the inner plug-in groove, a snap-in tilting frame is fixedly connected to the upper end of the elastic bent frame, and one end of the snap-in tilting frame is fixedly connected to the end face of the inner plug-in groove.

[0010] Preferably, the two inner ends of the interlocking buckle are fixedly connected to a docking platform, a plurality of locking buckle grooves are linearly opened in the docking platform, the cross-section of the locking buckle grooves is a right triangle, and a corresponding locking tilt frame is snapped into the locking buckle grooves.

[0011] Preferably, the inner end surfaces of the interlocking buckle 1 and the interlocking buckle 2 are provided with anti-slip grooves.

[0012] Preferably, a limit slot is fixedly provided on the side end of the fastening and locking frame, and the limit slot is slidably connected to the inner side end of the interlocking support frame.

[0013] Preferably, the upper end surface of the flow pipe is fixedly connected with a connecting rod limiting frame on both sides of the interlocking support frame, and a push rod is provided in a sliding sleeve inside the connecting rod limiting frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides an interlocking device so that when the DBB valve is in use, the interlocking buckles can be mutually buckled through the fastening frame by adjusting the gold fastening screw rotation assembly, thereby completing the interlocking operation, and can realize simultaneous locking and unlocking of two independent ball valves. After simultaneous unlocking, the two ball valves still do not affect each other, thereby improving the efficiency of valve locking and unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the interlocking connection structure of the present invention;

[0018] Figure 3 It is a schematic diagram of a partial fixed structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the connection of the locking and clamping structure of the present invention;

[0020] Figure 5 It is a schematic diagram of a partial transmission structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the interlocking of the interlocking parts of the present invention;

[0022] Figure 7 A schematic diagram of one of the interlocking buckles of the interlocking parts;

[0023] Figure 8 Another schematic diagram of the interlocking buckle of the interlocking parts.

[0024] In the figure: 1 flow pipe, 2 driving gear, 3 valve wheel, 4 valve shaft, 5 valve sealing hole, 6 gear rotation support platform, 7 transmission gear, 8 pulling turntable, 9 connecting rod limit frame, 10 interlocking support frame, 11 ball valve, 12 pulling rod, 13 pushing rod, 14 lateral limit sliding frame, 15 interlocking buckle one, 16 interlocking buckle two, 17 limit guide hole, 18 fastening locking frame, 19 fastening screw rotation assembly, 20 limit slot, 21 blocking frame, 22 clamping sliding frame, 23 anti-slip pattern, 24 plug-in platform, 25 locking buckle slot, 26 plug-in inner slot, 27 elastic bending frame, 28 clamping tilt frame. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0029] See also Figures 1 to 8The present invention provides a technical solution: a DBB jacket valve with an interlocking structure, comprising a flow pipe 1, wherein both sides of the upper end of the flow pipe 1 are fixedly connected with valve sealing holes 5, and a valve device is sleeved in the valve sealing hole 5; both sides of the upper end of the flow pipe 1 are respectively fixedly connected with gear rotating support platforms 6 on the inner sides of the valve sealing holes 5, and a transmission device is arranged on the upper end of the gear rotating support platform 6; an interlocking support frame 10 is fixedly connected to the middle of the upper end of the flow pipe 1, and an interlocking device is sleeved in the interlocking support frame 10, and the interlocking device mainly includes a fastening locking frame 18, an interlocking buckle 15 , interlocking buckle 2 16; a threaded hole is provided on the upper end of the interlocking support frame 10, and a fastening screw rotating assembly 19 is provided in the threaded sleeve in the threaded hole. The lower end of the fastening screw rotating assembly 19 is rotatably sleeved on the upper end surface of the fastening locking frame 18, and the inner groove cross-section of the fastening locking frame 18 is trapezoidal; the fastening clamp in the fastening locking frame 18 holds interlocking buckle 15 and interlocking buckle 2 16, and the valve device can control the flow in the flow pipe 1, and the transmission device is used to connect the rotation state of the valve device during adjustment with the mechanical transmission of the interlocking device, and the locking of the interlocking device can lock the valve device through the transmission device.

[0030] The valve device includes a valve wheel 3, the lower end surface of the valve wheel 3 is fixedly connected to a valve shaft 4, the lower end of the valve shaft 4 is fixedly connected to a ball valve 11, the sealing sleeve of the ball valve 11 is arranged in the flow pipe 1, the outer side of the valve shaft 4 is fixedly connected to a driving gear 2 at the upper end of the valve sealing hole 5, the right gear of the driving gear 2 is connected to a transmission device, the transmission device includes a transmission gear 7, the transmission gear 7 shaft is connected to the upper end of the gear rotation support platform 6, the outer gear of the driving gear 2 is connected to the transmission gear 7, the upper end of the transmission gear 7 is fixedly connected to a pulling turntable 8, the upper end surface of the pulling turntable 8 is fixedly connected to a pulling shaft, the outer shaft sleeve of the pulling shaft is provided with a pulling rod 12, the pulling rod 12 The end rotating shaft is connected with a propulsion rod 13, the end of the propulsion rod 13 is fixedly connected with a transverse limiting sliding frame 14, the left end of the transverse limiting sliding frame 14 is fixedly connected with a blocking frame 21, and the sliding sleeve inside the transverse limiting sliding frame 14 is provided with a card-connecting sliding frame 22, wherein the left end face of the card-connecting sliding frame 22 on the left side of the interlocking support frame 10 is fixedly connected with an interlocking buckle 15, and the inner end of the interlocking buckle 15 is provided with an inner plug-in groove 26, and the end face of the inner plug-in groove 26 is fixedly connected with a plurality of elastic bent frames 27, and the upper end of the elastic bent frame 27 is fixedly connected with a card-connecting tilting frame 28, and one end of the card-connecting tilting frame 28 is fixedly connected to the end face of the inner plug-in groove 26, and the inner end of the interlocking buckle 216 is fixedly connected with a plug-in platform 24 A plurality of locking buckle grooves 25 are linearly provided in the plug-in platform 24, and the cross-section of the locking buckle grooves 25 is a right-angled triangle. A corresponding locking tilting frame 28 is clamped in the locking buckle grooves 25. When the valve runner 3 is adjusted, the driving gear 2 rotates, driving the transmission gear 7 to rotate. At this time, the pull plate 8 rotates, so that the pull rod 12 drives the propulsion rod 13 to telescopically transmit in the limiting guide hole 17, and the linear telescopic transmission of the lateral limiting sliding frame 14 can be realized. When the interlocking buckle 15 and the interlocking buckle 2 16 are not restricted by the fastening locking frame 18, the valve runner 3 can rotate freely, so that the flow cross-section size of the ball valve 11 in the flow pipe 1 is adjusted to realize flow regulation. When the fastening screw is adjusted, The rod rotating assembly 19 makes the fastening locking frame 18 engage the interlocking buckle 15 and the interlocking buckle 2 16 with each other, and the inclined surfaces of the interlocking buckle 15 and the interlocking buckle 2 16 are in close contact with each other. Due to the limiting of the inclined surfaces, the interlocking buckle 15 and the interlocking buckle 2 16 will not fall off during adjustment. At the same time, the plug-in platform 24 is plugged into the plug-in inner groove 26, and the card-connecting tilting frame 28 is card-connected in the locking buckle groove 25 to achieve anti-retraction locking. The mutually engaged inclined surfaces of the interlocking buckle 15 and the interlocking buckle 2 16 cooperate to achieve stable interlocking, so that the interlocking buckle 15 and the interlocking buckle 2 16 will not have relative movement, which can prevent the rotation of the valve shaft 4 and achieve interlocking of the ball valve 11.

[0031] A limiting slot 20 is fixedly provided on the side end of the fastening and locking frame 18, and the limiting slot 20 is slidably connected to the inner end of the interlocking support frame 10. The upper end surface of the flow pipe 1 is fixedly connected with a connecting rod limiting frame 9 on both sides of the interlocking support frame 10. A push rod 13 is slidably sleeved in the connecting rod limiting frame 9. The limiting slot 20 allows the fastening and locking frame 18 to be stably raised and lowered in the interlocking support frame 10, and the connecting rod limiting frame 9 allows the push rod 13 to perform stable linear telescopic movement without tilting.

[0032] In actual use, when interlocking, when adjusting the valve wheel 3, the driving gear 2 rotates, driving the transmission gear 7 to rotate, and at this time, the pull plate 8 rotates, so that the pull rod 12 drives the propulsion rod 13 to telescopically transmit in the limiting guide hole 17, and the linear telescopic transmission of the lateral limiting sliding frame 14 can be realized. When the interlocking buckle 15 and the interlocking buckle 2 16 are not restricted by the fastening locking frame 18, the valve wheel 3 can rotate freely, so that the flow cross-section size of the ball valve 11 in the flow pipe 1 is adjusted to achieve flow regulation. When the fastening screw rotating assembly 19 is adjusted so that the fastening locking frame 18 engages the interlocking buckle 15 and the interlocking buckle 2 16 with each other, the inclined surfaces of the interlocking buckle 15 and the interlocking buckle 2 16 are in close contact with each other. Due to the limiting of the inclined surfaces, , so that the interlocking buckle 15 and the interlocking buckle 2 16 will not fall off during adjustment, and at the same time, the plug-in platform 24 is plugged into the plug-in inner groove 26, and the card-connected inclined frame 28 is card-connected in the locking buckle groove 25 to achieve anti-retraction locking, and the mutually card-connected inclined surfaces of the interlocking buckle 15 and the interlocking buckle 2 16 can cooperate to achieve stable interlocking, so that the interlocking buckle 15 and the interlocking buckle 2 16 will not have relative movement, which can prevent the rotation of the valve shaft 4 and achieve the interlocking of the ball valve 11. When it is necessary to release the lock, the fastening locking frame 18 is threadedly driven to release the fastening lock between the interlocking buckle 15 and the interlocking buckle 2 16. Under the elastic support of the elastic bent frame 27, the interlocking buckle 15 and the interlocking buckle 2 16 are released, and the valves on both sides can be freely adjusted.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DBB jacketed valve with an interlocking structure, characterized in that: include A flow pipe (1), wherein both sides of the upper end of the flow pipe (1) are fixedly connected with valve sealing holes (5), and a valve device is sleeved in the valve sealing hole (5); Gear rotating support platforms (6) are fixedly connected to the inner sides of the valve sealing holes (5) on both sides of the upper end of the flow pipe (1), and a transmission device is arranged on the upper end of the gear rotating support platform (6); An interlocking support frame (10) is fixedly connected to the middle of the upper end of the flow pipe (1), and an interlocking device is sleeved inside the interlocking support frame (10), and the interlocking device mainly includes a fastening locking frame (18), an interlocking buckle 1 (15), and an interlocking buckle 2 (16); The interlocking support frame (10) has a threaded hole at its upper end, a fastening screw rotating assembly (19) is threadedly sleeved in the threaded hole, the fastening screw rotating assembly (19) is rotatably sleeved at its lower end on the upper end surface of the fastening locking frame (18), and the inner groove cross section of the fastening locking frame (18) is trapezoidal; The fastening and locking frame (18) has an interlocking buckle 1 (15) and an interlocking buckle 2 (1) (6) in the fastening clamp.

2. A DBB jacketed valve with an interlocking structure according to claim 1, characterized in that: The valve device comprises a valve wheel (3), the lower end surface of the valve wheel (3) is fixedly connected to a valve shaft (4), the lower end of the valve shaft (4) is fixedly connected to a ball valve (11), and the sealing sleeve of the ball valve (11) is arranged in the flow pipe (1).

3. A DBB jacketed valve with an interlocking structure according to claim 2, characterized in that: The outer side of the valve shaft (4) is fixedly connected to a transmission gear (2) at the upper end of the valve sealing hole (5); the right gear of the transmission gear (2) is connected to a transmission device, and the transmission device includes a transmission gear (7); the rotation shaft of the transmission gear (7) is connected to the upper end of the gear rotation support platform (6).

4. A DBB jacketed valve with an interlocking structure according to claim 3, characterized in that: The outer gear of the transmission gear (2) is connected to a transmission gear (7), the upper end of the transmission gear (7) is fixedly connected to a pulling turntable (8), the upper end surface of the pulling turntable (8) is fixedly connected to a pulling shaft, the outer shaft sleeve of the pulling shaft is provided with a pulling rod (12), the end shaft of the pulling rod (12) is connected to a propulsion rod (13), the end of the propulsion rod (13) is fixedly connected to a transverse limiting sliding frame (14), and the left end of the transverse limiting sliding frame (14) is fixedly connected to a blocking frame (21).

5. A DBB jacketed valve with an interlocking structure according to claim 4, characterized in that: The sliding sleeve inside the transverse limit sliding frame (14) is provided with a snap-on sliding frame (22), wherein the left end face of the snap-on sliding frame (22) on the left side of the interlocking support frame (10) is fixedly connected with an interlocking buckle (15), the inner end of the interlocking buckle (15) is provided with an inserting inner groove (26), the end face of the inserting inner groove (26) is fixedly connected with a plurality of elastic bent frames (27), the upper end of the elastic bent frame (27) is fixedly connected with a snap-on tilting frame (28), and one end of the snap-on tilting frame (28) is fixedly connected to the end face of the inserting inner groove (26).

6. A DBB jacketed valve with an interlocking structure according to claim 4, characterized in that: The inner end of the interlocking buckle 2 (16) is fixedly connected to a plug-in platform (24), and a plurality of locking buckle grooves (25) are linearly provided in the plug-in platform (24). The cross-section of the locking buckle grooves (25) is a right triangle, and a locking tilting frame (28) is correspondingly locked in the locking buckle grooves (25).

7. A DBB jacketed valve with an interlocking structure according to claim 4, characterized in that: The inner end surfaces of the interlocking buckle 1 (15) and the interlocking buckle 2 (16) are provided with anti-slip grooves (23).

8. The DBB jacketed valve with an interlocking structure according to claim 1, characterized in that: A limit slot (20) is fixedly provided on the side end of the fastening and locking frame (18), and the limit slot (20) is slidably engaged with the inner side end of the interlocking support frame (10).

9. The DBB jacketed valve with an interlocking structure according to claim 1, characterized in that: The upper end surface of the flow pipe (1) is fixedly connected to a connecting rod limiting frame (9) on both sides of the interlocking support frame (10), and a propulsion rod (13) is slidably sleeved in the connecting rod limiting frame (9).

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