Gate valve with anti-freezing function

Abstract

The gate valve with the anti-freezing function comprises a gate valve body and a hand wheel, the hand wheel is arranged at the top of the gate valve body, a water hole is formed in the side wall of the gate valve body, and two first threaded holes are formed in the two side walls of a vertical connecting part of the gate valve body respectively. A first clamping block and a second clamping block are arranged on the outer circumferential face of the lower end of the gate valve body, the connecting block rotates in the cutting groove to enable the first arc-shaped groove and the second arc-shaped groove to be attached, the magnet in the containing hole tightly attracts the side wall of the second clamping block, screw and bolt installation is facilitated, shaking in the using process is prevented through double locking, and the service life of the gate valve is prolonged. The anti-freezing gate valve is simple in structure, stable and firm in fixing, energized heating is conducted on the heating layer through the control module, temperature is conducted to the gate valve body through the heat conduction layer, the gate valve connector is prevented from being frozen in cold weather, the gate valve body can be subjected to heat preservation through the heat preservation layer, and therefore the situation that the gate valve is frozen when used in cold weather is reduced, and the anti-freezing effect of the gate valve is better.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a gate valve with an anti-freezing function. Background Art

[0002] A gate valve is a valve with low fluid resistance and full bore, essentially no flow resistance. However, the gate in a gate valve has a large contact area with the valve seat and bore. In extremely low temperatures, the gate valve can easily freeze and become unable to rotate.

[0003] Therefore, it is necessary to provide a gate valve with an antifreeze function to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a gate valve with an antifreeze function 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 gate valve with an anti-freezing function, comprising a gate valve body and a handwheel, the handwheel being arranged on the top of the gate valve body, the side wall of the gate valve body being provided with a water hole, two first threaded holes being provided on both side walls of the vertical connection portion of the gate valve body, a first clamping block and a second clamping block being provided on the outer circumferential surface of the lower end of the gate valve body, the first clamping block and the second clamping block covering the outer circumferential surface of the gate valve body, a first clamping block being provided on the first clamping block, a first clamping groove being provided on the side wall of the first clamping block, the first clamping groove being clamped with the vertical connection portion of the gate valve body, and the first clamping groove being provided on the front and rear inner walls A first locking hole is provided, a screw is provided in the first locking hole, a second clamping block is provided on the second clamping block, a second clamping groove is provided on the side wall of the second clamping block, the second clamping groove is clamped with the vertical connection part of the gate valve body, second locking holes are provided on the front and rear inner walls of the second clamping groove, a screw is provided in the second locking hole, an insulation layer is provided between the first clamping block and the second clamping block, a heating layer is provided on the inner wall of the insulation layer, a heat-conducting layer is provided on the inner wall of the heating layer, and the heat-conducting layer is coated on the outer circumferential surface of the gate valve body, a control module is provided on the side wall of the second clamping block of the second clamping block, and the control module is electrically connected to the heating layer through a wire.

[0006] As a preferred technical solution of the present invention, a first arc-shaped groove is provided in the first locking block, and the first arc-shaped groove is a semicircular groove. A second arc-shaped groove is provided in the second locking block, and the second arc-shaped groove is a semicircular groove. The insulation layer is arranged on the inner wall of the through hole surrounded by the first arc-shaped groove of the first locking block and the second arc-shaped groove of the second locking block.

[0007] As an optimal technical solution of the present invention, the insulation layer is made of insulation cotton.

[0008] As a preferred technical solution of the present invention, a connecting block is provided on the outer circumferential surface of the first engaging block, the connecting block is located in the middle of the edge of the first arc-shaped groove, a rotating hole is provided on the side wall of the connecting block, a cutting groove is provided on the outer circumferential surface of the second engaging block, the cutting groove is located in the middle of the edge of the second arc-shaped groove, a rotating shaft is provided in the cutting groove, the connecting block is rotatably provided in the cutting groove, and the rotating shaft is rotatably provided in the rotating hole.

[0009] As an optimal technical solution of the present invention, two second threaded holes are provided on the side wall of the first clamping block, and the two second threaded holes are respectively located on both sides of the first clamping slot; two countersunk holes are provided on the side wall of the second clamping block, and the two countersunk holes are respectively located on both sides of the second clamping slot, and the two countersunk holes are respectively arranged opposite the two second threaded holes.

[0010] As a preferred technical solution of the present invention, two placement holes are provided on the side wall of the first clamping block, the two placement holes are located below the two second threaded holes, and magnets are provided in the placement holes.

[0011] As a preferred technical solution of the present invention, the heat-conducting layer is made of insulating heat-conducting material.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The first and second locking blocks are locked to the gate valve body by the screw through the first locking hole and the second locking hole, and the first and second locking blocks are locked to the gate valve body. Then, the first and second locking blocks are locked to each other by the bolt through the countersunk hole and the second threaded hole. The double locking prevents shaking during use and is firmly fixed. The heating layer is energized and heated by the control module, and the temperature is conducted to the gate valve body through the heat conductive layer to prevent the gate valve joint from being frozen when the weather is cold. The thermal insulation layer can keep the gate valve body warm, thereby reducing the possibility of freezing when the gate valve is used in cold weather, thereby improving the anti-freeze effect of the gate valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the gate valve body structure of the utility model;

[0017] Figure 3 This is a main structural view of the gate valve body of the utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the connection relationship between the first engaging block and the second engaging block of the utility model;

[0019] Figure 5 This is a three-dimensional schematic diagram of the first engaging block structure of the utility model;

[0020] Figure 6 It is a three-dimensional schematic diagram of the second engaging block structure of the utility model.

[0021] In the figure: 1. gate valve body; 101. water hole; 102. first threaded hole; 2. handwheel; 3. first engaging block; 31. first arcuate groove; 32. first engaging block; 33. first engaging groove; 34. first locking hole; 35. second threaded hole; 36. placement hole; 37. connecting block; 38. rotating hole; 4. second engaging block; 41. second arcuate groove; 42. second engaging block; 43. second engaging groove; 44. second locking hole; 45. countersunk hole; 46. notch; 47. rotating shaft; 5. control module; 6. heat conducting layer; 7. heating layer; 8. insulation layer. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention with reference to the accompanying drawings. In the process, to ensure clarity and convenience of the description, we may exaggerate the width of the lines or the size of the components in the drawings.

[0023] In addition, the following terms are defined based on the functions of the present invention and may vary depending on the intention or custom of the user or operator. Therefore, these terms are defined based on the entire content of this specification.

[0024] like Figures 1 to 6As shown, a gate valve with an antifreeze function includes a gate valve body 1 and a handwheel 2. The handwheel 2 is arranged on the top of the gate valve body 1 and is used to control the opening and closing of the valve plate of the gate valve. The side wall of the gate valve body 1 is provided with a water hole 101. Two first threaded holes 102 are provided on both side walls of the vertical connection part of the gate valve body 1. A first clamping block 3 and a second clamping block 4 are provided on the outer circumferential surface of the lower end of the gate valve body 1. The first clamping block 3 and the second clamping block 4 cover the outer circumference of the gate valve body 1. The inner surface of the first clamping block 3 is provided with a first threaded hole 102. A first arc-shaped groove 31 is provided, which is a semicircular groove. A first clamping block 32 is provided on the first clamping block 3, and a first clamping groove 33 is provided on the side wall of the first clamping block 32. The first clamping groove 33 is clamped with the vertical connection part of the gate valve body 1. First locking holes 34 are provided on the front and rear inner walls of the first clamping groove 33. A screw is provided in the first locking hole 34. The threaded part of the screw passes through the first locking hole 34 and is screwed into the first threaded hole 102, thereby locking the first clamping block 3 on the gate valve body 1.

[0025] like Figure 6 As shown, a second arc-shaped groove 41 is provided in the second engaging block 4, and the second arc-shaped groove 41 is a semicircular groove. A second engaging block 42 is provided on the second engaging block 4, and a second engaging groove 43 is provided on the side wall of the second engaging block 42. The second engaging groove 43 is engaged with the vertical connection part of the gate valve body 1, and second locking holes 44 are provided on the front and rear inner walls of the second engaging groove 43. A screw is provided in the second locking hole 44, and the threaded portion of the screw passes through the second locking hole 44 and is screwed into the first threaded hole 102, thereby locking the second engaging block 4 on the gate valve body 1.

[0026] like Figure 5 and Figure 6As shown, a connecting block 37 is provided on the outer circumference of the first engaging block 3, and the connecting block 37 is located in the middle of the edge of the first arc-shaped groove 31. A rotating hole 38 is provided on the side wall of the connecting block 37. A slot 46 is provided on the outer circumference of the second engaging block 4, and the slot 46 is located in the middle of the edge of the second arc-shaped groove 41. A rotating shaft 47 is provided in the slot 46. The connecting block 37 is rotatably set in the slot 46, and the rotating shaft 47 is rotatably set in the rotating hole 38. Two second threaded holes 35 are provided on the side wall of the first engaging block 32, and the two second threaded holes 35 are respectively located on both sides of the first engaging groove 33 Two countersunk holes 45 are provided on the side wall of the second clamping block 42, and the two countersunk holes 45 are respectively located on both sides of the second clamping groove 43. The two countersunk holes 45 are respectively arranged opposite to the two second threaded holes 35. The first clamping block 3 and the second clamping block 4 are locked together by passing the bolts through the countersunk holes 45 and screwing them into the second threaded holes 35. The side wall of the first clamping block 32 is provided with two placement holes 36, and the two placement holes 36 are located below the two second threaded holes 35. Magnets are provided in the placement holes 36 for attracting the first clamping block 3 and the second clamping block 4 to facilitate the installation and locking of screws and bolts.

[0027] like Figure 4 As shown, the inner wall of the through hole surrounded by the first arc groove 31 of the first engaging block 3 and the second arc groove 41 of the second engaging block 4 is provided with a thermal insulation layer 8, and the thermal insulation layer 8 is made of thermal insulation cotton. The inner wall of the thermal insulation layer 8 is provided with a heating layer 7, and the inner wall of the heating layer 7 is provided with a heat-conducting layer 6, and the heat-conducting layer 6 is made of insulating heat-conducting material. The heat-conducting layer 6 is coated on the outer circumferential surface of the gate valve body 1, and the side wall of the second engaging block 42 of the second engaging block 4 is provided with a control module 5, and the control module 5 is electrically connected to the heating layer 7 through a wire, and the heating layer 7 is electrically heated by the control module 5, and the temperature is conducted to the gate valve body 1 through the heat-conducting layer 6 to prevent the joint from being frozen when the weather is cold.

[0028] The specific implementation method is as follows: the first engaging block 3 and the second engaging block 4 are connected to the outer circumferential surface of the gate valve body 1 by rotating the connecting block 37 in the cutting groove 46. When the first arc groove 31 and the second arc groove 41 are in contact with each other, the magnet in the placement hole 36 sucks the side wall of the second engaging block 42 of the second engaging block 4 tightly, which is convenient for the installation of screws and bolts. The screws are passed through the first locking hole 34 and the second locking hole 44 and screwed into the first threaded hole 102 to lock the first engaging block 3 and the second engaging block 4 on the gate valve body 1, and then the first engaging block 3 and the second engaging block 4 are locked on the gate valve body 1. The bolt passes through the countersunk hole 45 and is screwed into the second threaded hole 35 to lock the first locking block 3 and the second locking block 4 together. The double locking prevents shaking during use and ensures firm and reliable fixation. The heating layer 7 is energized and heated by the control module 5, and the temperature is conducted to the gate valve body 1 through the heat-conducting layer 6 to prevent the gate valve joint from freezing when the weather is cold. The insulation layer 8 can insulate the gate valve body 1, thereby reducing the possibility of the gate valve being frozen when used in cold weather, and making the gate valve have a better anti-freeze effect.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A gate valve with an antifreeze function, comprising a gate valve body (1) and a hand wheel (2), wherein the hand wheel (2) is arranged on the top of the gate valve body (1), and a water hole (101) is opened on the side wall of the gate valve body (1), characterized in that: Two first threaded holes (102) are provided on both side walls of the vertical connection portion of the gate valve body (1); a first engaging block (3) and a second engaging block (4) are provided on the outer circumferential surface of the lower end of the gate valve body (1); the first engaging block (3) and the second engaging block (4) cover the outer circumferential surface of the gate valve body (1); a first engaging block (32) is provided on the first engaging block (3); a first engaging groove (33) is provided on the side wall of the first engaging block (32); the first engaging groove (33) is engaged with the vertical connection portion of the gate valve body (1); a first locking hole (34) is provided on the front and rear inner walls of the first engaging groove (33); a screw is provided in the first locking hole (34); a second engaging block (42) is provided on the second engaging block (4) The second clamping block (42) has a second clamping groove (43) on its side wall, and the second clamping groove (43) is clamped with the vertical connection part of the gate valve body (1). The second clamping groove (43) has a second locking hole (44) on its front and rear inner walls, and a screw is arranged in the second locking hole (44). An insulation layer (8) is arranged between the first clamping block (3) and the second clamping block (4). A heating layer (7) is arranged on the inner wall of the insulation layer (8). A heat-conducting layer (6) is arranged on the inner wall of the heating layer (7). The heat-conducting layer (6) is covered on the outer circumferential surface of the gate valve body (1). A control module (5) is arranged on the side wall of the second clamping block (42) of the second clamping block (4), and the control module (5) is electrically connected to the heating layer (7) through a wire.

2. The gate valve with antifreeze function according to claim 1, characterized in that: A first arcuate groove (31) is provided in the first engaging block (3), and the first arcuate groove (31) is a semicircular groove. A second arcuate groove (41) is provided in the second engaging block (4), and the second arcuate groove (41) is a semicircular groove. The heat-insulating layer (8) is provided on the inner wall of a through hole formed by the first arcuate groove (31) of the first engaging block (3) and the second arcuate groove (41) of the second engaging block (4).

3. The gate valve with antifreeze function according to claim 1, characterized in that: The thermal insulation layer (8) is made of thermal insulation cotton.

4. The gate valve with antifreeze function according to claim 1, characterized in that: A connecting block (37) is provided on the outer circumferential surface of the first engaging block (3), the connecting block (37) is located in the middle of the edge of the first arc-shaped groove (31), and a rotating hole (38) is provided on the side wall of the connecting block (37). A cutting groove (46) is provided on the outer circumferential surface of the second engaging block (4), the cutting groove (46) is located in the middle of the edge of the second arc-shaped groove (41), a rotating shaft (47) is provided in the cutting groove (46), the connecting block (37) is rotatably provided in the cutting groove (46), and the rotating shaft (47) is rotatably provided in the rotating hole (38).

5. The gate valve with antifreeze function according to claim 1, characterized in that: Two second threaded holes (35) are provided on the side wall of the first clamping block (32), and the two second threaded holes (35) are respectively located on both sides of the first clamping slot (33); two countersunk holes (45) are provided on the side wall of the second clamping block (42), and the two countersunk holes (45) are respectively located on both sides of the second clamping slot (43), and the two countersunk holes (45) are respectively arranged opposite to the two second threaded holes (35).

6. The gate valve with antifreeze function according to claim 5, characterized in that: Two placement holes (36) are provided on the side wall of the first clamping block (32), the two placement holes (36) are located below the two second threaded holes (35), and magnets are provided in the placement holes (36).

7. The gate valve with antifreeze function according to claim 1, characterized in that: The heat-conducting layer (6) is made of an insulating heat-conducting material.

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