CN217381697U

CN217381697U - Top-mounted zero-abrasion telescopic quick-closing gate valve

Info

Publication number: CN217381697U
Application number: CN202221412508.9U
Authority: CN
Inventors: 高慎灿; 李相伟; 李胜国; 杨张策; 李胜全
Original assignee: Yongjia Wanzhong Valve Co ltd
Current assignee: Yongjia Wanzhong Valve Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-06
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses an upper-mounted zero-abrasion telescopic quick-closing gate valve, which comprises a valve body, a flow passage, a bracket, a valve rod and a flashboard; the valve body is provided with a heat preservation cavity which is in contact with the valve rod; the outer side of the valve body is provided with a heat-insulating component, and the heat-insulating component comprises a fixed base, a fixed arm, a locking bolt, a compression cavity, a sliding sealing block, a compression spring and a force application piece; the valve body is internally provided with a communicating channel which communicates the heat preservation cavity with the compression cavity. The utility model has the advantages of it is following and effect: the inside of the gate valve can be insulated, and the insulation effect is good; and through the heat preservation component who sets up, can effectually seal the heat preservation chamber, prevent the leakage of heat preservation medium.

Description

Top-mounted zero-abrasion telescopic quick-closing gate valve

Technical Field

The utility model relates to the technical field of valves, in particular to telescopic fast gate valve of zero wearing and tearing of facial make-up formula.

Background

The gate valve is a shutter plate, the moving direction of which is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and can not be adjusted and throttled. The gate valve is used as a stopping medium, wherein the medium comprises water, oil and the like, and the valve rod drives the gate plate to reciprocate during operation, so that communication or partition of a flow passage is realized.

In a cold low-temperature environment, the residual medium is easy to freeze or crystallize, so that the valve rod in the gate valve is difficult to rotate. The existing coping method generally comprises the steps that a heat insulation material is paved outside a gate valve, and the heat insulation material can cover the gate valve to realize heat insulation; however, the method has the defects of complex laying process and poor heat preservation effect. If can keep warm to the inside of gate valve, can effectively improve the heat preservation effect undoubtedly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a telescopic fast floodgate valve that closes of zero wearing and tearing of facial make-up formula to solve the problem that proposes among the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions: a top-mounted zero-abrasion telescopic quick-closing gate valve comprises a valve body, wherein a flow channel for a fluid medium to circulate is formed in the valve body, a support is mounted at the upper end of the valve body, a valve rod is vertically mounted in the support, a flashboard penetrating the flow channel is fixedly mounted at the lower end of the valve rod, and the valve rod drives the flashboard to reciprocate along the axial direction of the valve rod so as to control the cut-off and communication of the flow channel;

the valve body is provided with a heat preservation cavity which is contacted with the valve rod;

the heat insulation component comprises a fixed base, the fixed base is longitudinally attached to the outer side of the valve body, fixed arms extend from the upper end and the lower end of the fixed base, and locking bolts are screwed into the two fixed arms so as to fix the fixed base on the outer side of the valve body; a longitudinal compression cavity is formed in the fixed base, a sliding sealing block is arranged in the compression cavity, the sliding sealing block can slide longitudinally in the compression cavity, a compression spring is arranged between the sliding sealing block and the bottom of the compression cavity in a compression mode, and the sliding sealing block always has the upward sliding tendency based on the elastic acting force of the compression spring; a force application part which can apply an acting force to make the sliding sealing block move downwards under the force is arranged on the fixed base;

a communicating channel for communicating the heat preservation cavity with the compression cavity is arranged in the valve body; when the force application member does not apply an acting force to the sliding sealing block, the sliding sealing block moves upwards under the acting force of the compression spring and abuts against and seals the communication channel; when the force application piece applies acting force to the sliding sealing block, the sliding sealing block is stressed to move downwards, the communication channel is open, and therefore the heat preservation medium can be injected into the heat preservation cavity through the communication channel.

The further setting is that: the left end of the compression cavity of the fixed base is provided with a limiting groove, the left end of the sliding sealing block extends downwards to be provided with an extension support arm, the lower end of the extension support arm is fixedly provided with an extension lug, the extension lug extends into the limiting groove, and the sliding sealing block is limited based on the propping of the extension lug and the upper and lower end walls of the limiting groove;

and a limit fixing block for limiting the sliding sealing block is fixedly arranged on the fixing base.

The further setting is that: the force application piece comprises a rotating rod and a force application block, a rotating base is fixedly arranged on the fixed base, the rotating rod is rotatably arranged on the rotating base, and the force application block is fixed on the rotating rod and synchronously rotates along with the rotating rod; the force application block is rotated by applying force, so that the lower end of the force application block is contacted with the sliding sealing block and applies force to the sliding sealing block.

The further setting is that: and a balancing weight is fixedly arranged at the lower end of the right side of the force application block.

The further setting is that: and an injection channel is arranged in the force application block, one end of the injection channel is communicated with the outside of the force application block, and the other end of the injection channel is communicated with the compression cavity.

The beneficial effects of the utility model reside in that:

1. the utility model discloses in seted up the heat preservation chamber in the valve body, the heat preservation chamber contacts with the valve rod, and the valve body outside is provided with a heat preservation component, has seted up in the valve body and has said the intercommunication, says through the intercommunication and pours into heat preservation medium to the heat preservation intracavity into, can realize the inside heat preservation of gate valve, and heat preservation medium can contact with the valve rod and heat up, solves to freeze or crystallization, has the good advantage of heat preservation effect. Simultaneously, in order to avoid the leakage of heat preservation medium, seted up fore-and-aft compression chamber in the heat preservation component, be provided with sliding seal piece and compression spring in the compression chamber, under initial condition, sliding seal piece can shift up and support and sealed intercommunication way under compression spring's effort, and compression spring's setting has guaranteed sliding seal piece to the sealing stability who communicates the way. When the heat preservation medium is injected into the cavity, the force application part applies an acting force to the sliding sealing block, the sliding sealing block is stressed to move downwards, the communicating channel is open, the heat preservation medium is injected into the heat preservation cavity through the communicating channel, and the heat preservation medium injection cavity has the advantages of being simple and reasonable in structure and enabling the heat preservation medium to be injected more conveniently.

2. The utility model discloses in come to carry on spacingly to the left end of sliding seal piece through setting up spacing groove and extension lug, come to carry on spacingly to the right-hand member of sliding seal piece through setting up spacing fixed block, can prevent effectively from sliding seal piece to deviate from sealed chamber under compression spring's elastic force from this.

3. The utility model discloses well application of force spare is including bull stick and application of force piece, and application of force piece is fixed on the bull stick, and the rotatable setting of bull stick is on rotating the base, and user's application of force rotates application of force piece, can make the lower extreme of application of force piece and the contact of sliding seal piece and to its application of force effort, has convenient operation's advantage.

4. The utility model discloses in the fixed balancing weight that is provided with of lower extreme on the right side of application of force piece, can guarantee application of force piece and sliding seal piece contact and push down sliding seal piece.

5. The utility model discloses in having seted up the injection channel in the application of force piece inside, the accessible injects the passageway and pours into the heat preservation medium into, and is more convenient.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

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

FIG. 3 is an enlarged view of portion B of FIG. 2;

fig. 4 is an enlarged view of a portion C in fig. 2.

In the figure: 11. a valve body; 12. a flow channel; 13. a support; 14. a valve stem; 15. a shutter plate; 21. a heat preservation cavity; 22. a communicating channel; 31. a fixed base; 32. a fixed arm; 33. a locking bolt; 41. a compression chamber; 42. a compression spring; 43. sliding the sealing block; 51. a limiting groove; 52. extending the support arm; 53. extending the bump; 54. a limit fixing block; 61. a rotating rod; 62. a force application block; 71. rotating the base; 81. a balancing weight; 91. and (3) injecting the liquid into the channel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, the top-mounted zero-wear telescopic quick-closing gate valve comprises a valve body 11, a flow passage 12 for a fluid medium to flow is formed in the valve body 11, a support 13 is mounted at the upper end of the valve body 11, a valve rod 14 is vertically mounted in the support 13, a gate plate 15 penetrating the flow passage 12 is fixedly mounted at the lower end of the valve rod 14, and the valve rod 14 drives the gate plate 15 to reciprocate along the axial direction of the valve rod 14 so as to control the cutting and communication of the flow passage 12. The above conventional structure of the gate valve belongs to the prior art, and will not be further described herein.

A heat preservation cavity 21 is arranged on the valve body 11, and the heat preservation cavity 21 is contacted with the valve rod 14;

a heat insulation component is arranged on the outer side of the valve body 11, the heat insulation component comprises a fixed base 31, the fixed base 31 is longitudinally attached to the outer side of the valve body 11, fixed arms 32 extend from the upper end and the lower end of the fixed base 31, and locking bolts 33 are screwed into the two fixed arms 32 to fix the fixed base 31 on the outer side of the valve body 11; the fixing of the locking bolt 33 is in a conventional manner. A longitudinal compression cavity 41 is formed in the fixed base 31, a sliding sealing block 43 is arranged in the compression cavity 41, the sliding sealing block 43 can slide longitudinally in the compression cavity 41, a compression spring 42 is compressed between the sliding sealing block 43 and the bottom of the compression cavity 41, and the sliding sealing block 43 always has the tendency of sliding upwards based on the elastic acting force of the compression spring 42; a force applying member capable of applying an acting force to make the sliding seal block 43 move downward under force is arranged on the fixed base 31;

a communicating channel 22 for communicating the heat preservation cavity 21 with the compression cavity 41 is arranged in the valve body 11; when the force applying member does not apply force to the sliding seal block 43, the sliding seal block 43 will move upwards under the force of the compression spring 42 and abut against and seal the communication channel 22; when the force applying member applies a force to the sliding seal block 43, the sliding seal block 43 is forced to move downward, and the communication channel 22 is opened, so that the thermal insulation medium can be injected into the thermal insulation chamber 21 through the communication channel 22. In this embodiment, the insulating medium is an insulating gas; of course, the insulating gas in the insulating chamber 21 can be drawn out by the exhaust fan.

The fixed base 31 is provided with a limiting groove 51 at the left end of the compression cavity 41, the left end of the sliding sealing block 43 extends downwards to be provided with an extension support arm 52, the lower end of the extension support arm 52 is fixedly provided with an extension lug 53, the extension lug 53 extends into the limiting groove 51, and the sliding sealing block 43 is limited based on the propping of the extension lug 53 and the upper and lower end walls of the limiting groove 51;

and a limit fixing block 54 for limiting the sliding seal block 43 is fixed on the fixing base 31.

The force application piece comprises a rotating rod 61 and a force application block 62, a rotating base 71 is fixedly arranged on the fixed base 31, the rotating rod 61 is rotatably arranged on the rotating base 71, and the force application block 62 is fixed on the rotating rod 61 and synchronously rotates along with the rotating rod 61; the urging block 62 is urged to rotate, and the lower end of the urging block 62 is brought into contact with the sliding seal block 43 to urge the same.

Wherein, a balancing weight 81 is fixedly arranged at the lower end of the right side of the force application block 62; the weight 81 is heavier than the force application block 62.

Wherein, an injection channel 91 is arranged in the force application block 62, one end of the injection channel 91 is communicated with the outside of the force application block 62, and the other end is communicated with the compression cavity 41.

The specific embodiments are only for explaining the present invention, and it is not a limitation to the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present invention.

Claims

1. The upper-mounted zero-abrasion telescopic quick-closing gate valve comprises a valve body (11), wherein a flow channel (12) for a fluid medium to circulate is formed in the valve body (11), a support (13) is mounted at the upper end of the valve body (11), a valve rod (14) is vertically mounted in the support (13), a gate plate (15) penetrating through the flow channel (12) is fixedly mounted at the lower end of the valve rod (14), and the valve rod (14) drives the gate plate (15) to reciprocate along the axial direction of the valve rod (14) so as to control the cutting and communication of the flow channel (12); the method is characterized in that:

a heat preservation cavity (21) is formed in the valve body (11), and the heat preservation cavity (21) is in contact with the valve rod (14);

a heat preservation component is arranged on the outer side of the valve body (11), the heat preservation component comprises a fixed base (31), the fixed base (31) is longitudinally attached to the outer side of the valve body (11), fixed arms (32) extend from the upper end and the lower end of the fixed base (31), and locking bolts (33) are screwed into the two fixed arms (32) so as to fix the fixed base (31) on the outer side of the valve body (11); a longitudinal compression cavity (41) is formed in the fixed base (31), a sliding sealing block (43) is arranged in the compression cavity (41), the sliding sealing block (43) can slide longitudinally in the compression cavity (41), a compression spring (42) is compressed between the sliding sealing block (43) and the bottom of the compression cavity (41), and the sliding sealing block (43) always has a tendency of sliding upwards based on the elastic acting force of the compression spring (42); a force application part which can apply an acting force to make the sliding sealing block (43) move downwards under the force is arranged on the fixed base (31);

a communicating channel (22) which communicates the heat preservation cavity (21) with the compression cavity (41) is arranged in the valve body (11); when the force applying piece does not apply force to the sliding sealing block (43), the sliding sealing block (43) moves upwards under the action force of the compression spring (42) and is abutted against and seals the communication channel (22); when the force applying piece applies force to the sliding sealing block (43), the sliding sealing block (43) is forced to move downwards, the communication channel (22) is open, and therefore the heat preservation medium can be injected into the heat preservation cavity (21) through the communication channel (22).

2. The top-loading zero-wear telescopic quick-closing gate valve according to claim 1, characterized in that: the fixed base (31) is provided with a limiting groove (51) at the left end of the compression cavity (41), the left end of the sliding sealing block (43) extends downwards to be provided with an extension support arm (52), the lower end of the extension support arm (52) is fixedly provided with an extension lug (53), the extension lug (53) extends into the limiting groove (51), and the sliding sealing block (43) is limited by the support of the extension lug (53) and the upper end wall and the lower end wall of the limiting groove (51);

and a limit fixing block (54) for limiting the sliding sealing block (43) is fixedly arranged on the fixed base (31).

3. The top-loading zero-wear telescopic quick-closing gate valve according to claim 1, characterized in that: the force application piece comprises a rotating rod (61) and a force application block (62), a rotating base (71) is fixedly arranged on the fixed base (31), the rotating rod (61) is rotatably arranged on the rotating base (71), and the force application block (62) is fixed on the rotating rod (61) and synchronously rotates along with the rotating rod (61); the lower end of the force application block (62) can be contacted with the sliding seal block (43) by applying force to rotate the force application block (62).

4. The gate valve of claim 3, wherein the gate valve is a top-loading type zero-wear telescopic fast-closing gate valve, comprising: and a balancing weight (81) is fixedly arranged at the lower end of the right side of the force application block (62).

5. The gate valve of claim 3, wherein the gate valve is a top-loading type zero-wear telescopic fast-closing gate valve, comprising: an injection channel (91) is formed in the force application block (62), one end of the injection channel (91) is communicated with the outside of the force application block (62), and the other end of the injection channel is communicated with the compression cavity (41).