Right-angle pulse valve

Abstract

The utility model discloses a right angle type pulse valve, which comprises a valve body, a compression nut, a bowl-shaped gasket and a conical sealing ring, the compression nut, the bowl-shaped gasket and the conical sealing ring are installed at the inlet end of the valve body, a fixing piece is arranged between the compression nut and the bowl-shaped gasket in a pressing mode, the fixing piece is composed of a plurality of sector ring blocks, the compression nut is provided with a through hole, and the through hole is communicated with the bowl-shaped gasket. The compression nut assembly has the advantages that the compression nut is made to move towards the side close to the valve body by rotating the compression nut, the compression nut is made to move towards the side close to the valve body through matching of the conical face and the inclined face, and therefore the compression nut is made to move towards the side close to the valve body, the compression nut is made to move towards the side close to the valve body through matching of the conical face and the inclined face, and the compression nut is made to move towards the side close to the valve body. The compression nut pushes the sector ring blocks to move towards the sides close to each other in the radial direction of the connector, so that the sector ring blocks are in abutting fit with the annular groove of the air supply bag, in addition, the position relation between the fixing piece and the compression nut does not need to be considered, installation can be achieved only by rotating the compression nut, and installation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse valves, in particular to a right-angle pulse valve. Background Art

[0002] The pulse valve is a specialized valve for bag dust collectors. Originally a type of diaphragm valve, it is generally referred to as an electromagnetic pulse valve because its actuator is a solenoid-driven, pilot-driven type. Pulse valves are categorized by structure into submerged, right-angle, right-angle flange, straight-through, and right-angle nut-type valves. The right-angle nut-type pulse valve is easy to install, as the nut tightens and compresses the sealing ring, sealing it against the connected pipeline. It is widely used in pulse bag dust collectors.

[0003] After searching, a Chinese utility model patent (authorization announcement number: CN217440890U) provides a right-angle nut-type pulse valve and its air supply bag, including a valve body and a clamping nut, a bowl-shaped washer, and a conical sealing ring installed on the inlet end of the valve body, characterized in that the edge of the through hole on the inner end surface of the clamping nut is provided with two or more groups of step surfaces, and a fixing part is installed on each group of the step surfaces; wherein, each group of the step surfaces includes a first step surface and a second step surface arranged along the edge of the through hole, the inner edge of the first step surface and the inner edge of the second step surface are part of the edge of the through hole, the outer edge shape of the first step surface is the same as the outer edge shape of the second step surface, and the distance from the outer edge of the first step surface to the edge of the through hole is greater than the distance from the outer edge of the second step surface to the edge of the through hole; each of the fixing parts includes a first fixing part, and the outer edge shape of the cross section of the first fixing part matches the outer edge shape of the first step surface and the outer edge shape of the second step surface respectively.

[0004] When the first fixing portion is located on the first step surface, the outer edge of the cross-section of the first fixing portion matches the outer edge of the first step surface, and the distance from the inner edge of the cross-section of the first fixing portion to the axis of the through hole is greater than or equal to the radius of the through hole. When the first fixing portion is located on the second step surface, the outer edge of the cross-section of the first fixing portion matches the outer edge of the second step surface, and the distance from the inner edge of the cross-section of the first fixing portion to the axis of the through hole is less than the radius of the through hole.

[0005] The defects of the above-mentioned prior art are that: when installing the fixing parts, the prior art needs to align the first fixing part with the first step surface and the second fixing part with the second step surface. Since the clamping nut is threadedly matched with the valve body, the clamping nut needs to be rotated when installing it. Therefore, there will be misalignment between the first fixing part and the first step surface, and between the second fixing part and the second step surface, resulting in poor installation effect. Therefore, this shortcoming needs to be improved urgently. Utility Model Content

[0006] The purpose of the present invention is to solve the above problems. The present invention provides a right-angle pulse valve, which has the advantage of being more convenient to install.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: including a valve body and a clamping nut, a bowl-shaped gasket, and a conical sealing ring installed on the inlet end of the valve body, a fixing piece is pressed between the clamping nut and the bowl-shaped gasket, and the fixing piece is composed of a plurality of fan ring blocks, and each fan ring block is interconnected to form an annular block, each fan ring block has a first end and a second end, the first end is provided with a guide hole, and the second end is provided with a guide rod that cooperates with the guide hole, the guide holes of adjacent fan ring blocks and the guide rods are connected to each other, the clamping nut is provided with a through hole, the through hole has a conical surface at one end close to the fixing piece, and the fan ring block has an inclined surface that cooperates with the conical surface.

[0008] Preferably, the diameter of the conical surface on the side close to the valve body is larger than the diameter of the conical surface on the side away from the valve body.

[0009] Preferably, a mounting hole is provided in the guide rod, and a spring is provided between the bottom of the mounting hole and the bottom of the guide hole, and the spring always has a tendency to push adjacent fan ring blocks to move away from each other along the axis direction of the guide hole.

[0010] Preferably, there is a gap between the guide hole and the guide rod.

[0011] Preferably, the compression nut is provided with a limiting step, and the limiting step is in limiting cooperation with the end face of the inlet end.

[0012] Preferably, the inlet end is detachably connected to an air supply bag, and the air supply bag includes a connecting head and an air bag. An annular groove is provided in the middle of the connecting head, and the fan ring blocks all have an inner hole surface that cooperates with the annular groove.

[0013] Preferably, a sealing sector ring is fixed on the inner hole surface, and the sealing sector ring is sealingly matched with the annular groove.

[0014] Preferably, the width of the annular groove is greater than the thickness of the fan ring block.

[0015] Preferably, the valve body has a positioning groove that cooperates with the bowl-shaped gasket.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The utility model provides a right-angle pulse valve, which rotates the clamping nut to make the clamping nut move toward the side close to the valve body. Through the cooperation of the conical surface and the inclined surface, the clamping nut moves toward the side close to the valve body. At the same time, the clamping nut pushes the fan ring block to move along the radial direction of the connecting head toward the side close to each other, so that the fan ring block and the annular groove of the air supply bag abut and cooperate, thereby achieving the effect of better fixing the air supply bag. In addition, the present application does not need to consider the positional relationship between the fixing part and the clamping nut. Installation can be achieved by simply rotating the clamping nut, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the air bag connected to the air supply of the present invention;

[0020] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of A;

[0021] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of B;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the fixing member of the present utility model;

[0023] Figure 6 This is a schematic cross-sectional perspective structural diagram of the fan ring block separation of the utility model;

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the fan ring block separation of the utility model.

[0025] Description of the drawings: 1. Valve body; 11. Inlet end; 12. Positioning groove; 2. Locking nut; 20. Through hole; 201. Conical surface; 21. Limiting step; 3. Conical sealing ring; 4. Bowl-shaped gasket; 5. Fixing part; 50. Inner hole surface; 500. Sector ring block; 51. Inclined surface; 52. Sealing sector ring; 53. Guide hole; 54. Guide rod; 541. Mounting hole; 55. Spring; 6. Air supply bag; 60. Annular groove; 61. Connector. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1-Figure 7 As shown, a right-angle pulse valve comprises a valve body 1 and a compression nut 2, a bowl-shaped gasket 4, and a conical sealing ring 3 installed on the inlet end 11 of the valve body 1. The bowl-shaped gasket 4 and the conical sealing ring 3 are arranged between the compression nut 2 and the valve body 1, and the conical sealing ring 3 is sealed between the bowl-shaped gasket 4 and the valve body 1. The bowl-shaped gasket 4 is arranged between the conical sealing ring 3 and the compression nut 2. A fixing member 5 is also pressed between the compression nut 2 and the bowl-shaped gasket 4. The fixing member 5 is composed of a plurality of sector ring blocks 500, and each of the sector ring blocks 500 is connected to each other. It forms an annular block, and each of the fan ring blocks 500 has a first end and a second end. The first end is provided with a guide hole 53, and the second end is provided with a guide rod 54 that cooperates with the guide hole 53. The guide holes 53 and guide rods 54 of adjacent fan ring blocks 500 are connected with each other in cooperation. The clamping nut 2 is provided with a through hole 20, and the through hole 20 has a conical surface 201 at one end close to the fixing member 5. The diameter of the conical surface 201 close to the valve body 1 is larger than the diameter of the conical surface 201 away from the valve body 1. The fan ring block 500 has an inclined surface 51 that cooperates with the conical surface 201.

[0028] The guide rod 54 has a mounting hole 541 therein, and a spring 55 is provided between the bottom of the mounting hole 541 and the bottom of the guide hole 53. The spring 55 always has a tendency to push the adjacent fan ring blocks 500 to move away from each other along the axial direction of the guide hole 53. The spring 55 enables the fan ring blocks 500 to move away from each other after the clamping nut 2 is removed.

[0029] There is a gap between the guide hole 53 and the guide rod 54, thereby preventing adjacent sector ring blocks 500 from getting stuck during movement.

[0030] The compression nut 2 has a limiting step 21 , and the limiting step 21 is in limiting engagement with the end surface of the inlet end 11 .

[0031] The inlet end 11 is detachably connected to an air supply bag 6 , which includes a connector 61 and an air bag. An annular groove 60 is provided in the middle of the connector 61 , and the fan ring blocks 500 all have an inner hole surface 50 that cooperates with the annular groove 60 .

[0032] Further optimized, a sealing fan ring 52 is fixed on the inner hole surface 50, and the sealing fan ring 52 is sealed with the annular groove 60, and when the fan ring block 500 moves toward the side of the movable annular block close to each other, the sealing fan ring 52 abuts against the annular groove 60, thereby causing the sealing fan ring 52 to deform, thereby increasing the friction force, thereby improving the stability of the connection of the air supply bag 6.

[0033] The width of the annular groove 60 is greater than the thickness of the sector ring block 500 , thereby providing deformation space for the sealing sector ring 52 after deformation.

[0034] The valve body 1 is provided with a positioning groove 12 that cooperates with the bowl-shaped gasket 4 .

[0035] During the specific installation: first put the conical sealing ring 3 into the inlet end 11, and then position and match the bowl-shaped gasket 4 with the positioning groove 12 to make the conical sealing ring 3 pressed between the bowl-shaped gasket 4 and the valve body 1, and then put the fixing piece 5 to the other end of the bowl-shaped gasket 4, and then rotate the clamping nut 2 and the valve body 1 two circles to achieve threaded matching, and then insert the connecting head 61 of the air supply bag 6 into the conical sealing ring 3, the bowl-shaped gasket 4, the fixing piece 5 and the through hole 20 of the clamping nut 2, and make the fixing piece 5 correspond to the position of the annular groove 60, and then rotate the clamping nut 2 to make the clamping nut 2 move to the side close to the valve body 1, and through the matching of the conical surface 201 and the inclined surface 51 The locking nut 2 is engaged, thereby causing the locking nut 2 to move toward the side close to the valve body 1. At the same time, the locking nut 2 pushes the fan ring block 500 to move along the radial direction of the connecting head 61 toward the side close to each other, until the limiting step 21 of the locking nut 2 is limited and matched with the end face of the inlet end 11. Then, the locking nut 2 is stopped. At this time, the sealing fan ring 52 on the fan ring block 500 is sealed and matched with the annular groove 60, so that the friction between the sealing fan ring 52 and the connecting head 61 is increased, thereby achieving the effect of better fixing the air supply bag 6. In addition, the present application does not need to consider the positional relationship between the fixing part 5 and the locking nut 2. Only the locking nut 2 needs to be rotated to achieve installation, which is more convenient.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A right-angle pulse valve, comprising a valve body (1) and a compression nut (2), a bowl-shaped gasket (4), and a conical sealing ring (3) mounted on an inlet end (11) of the valve body (1), characterized in that: A fixing member (5) is pressed between the clamping nut (2) and the bowl-shaped washer (4), and the fixing member (5) is composed of a plurality of fan ring blocks (500), and each of the fan ring blocks (500) is connected to each other to form an annular block, and each of the fan ring blocks (500) has a first end and a second end, the first end is provided with a guide hole (53), and the second end is provided with a guide rod (54) that cooperates with the guide hole (53), and the guide holes (53) and guide rods (54) of adjacent fan ring blocks (500) are connected to each other in a cooperative manner, and a through hole (20) is provided on the clamping nut (2), and the through hole (20) has a conical surface (201) at one end close to the fixing member (5), and the fan ring block (500) has an inclined surface (51) that cooperates with the conical surface (201).

2. A right-angle pulse valve according to claim 1, characterized in that: The diameter of the conical surface (201) on the side close to the valve body (1) is larger than the diameter of the conical surface (201) on the side away from the valve body (1).

3. A right-angle pulse valve according to claim 1, characterized in that: The guide rod (54) has a mounting hole (541) therein, and a spring (55) is provided between the bottom of the mounting hole (541) and the bottom of the guide hole (53), wherein the spring (55) always has a tendency to push the adjacent fan ring blocks (500) to move away from each other along the axis direction of the guide hole (53).

4. A right-angle pulse valve according to claim 1, characterized in that: There is a gap between the guide hole (53) and the guide rod (54).

5. The right-angle pulse valve according to claim 1, characterized in that: The clamping nut (2) is provided with a limiting step (21), and the limiting step (21) is in limiting engagement with the end face of the inlet end (11).

6. The right-angle pulse valve according to claim 1, characterized in that: The inlet end (11) is detachably connected to an air supply bag (6), the air supply bag (6) comprising a connector (61) and an air bag, an annular groove (60) being provided in the middle of the connector (61), and the fan ring blocks (500) each have an inner hole surface (50) that matches the annular groove (60).

7. A right-angle pulse valve according to claim 6, characterized in that: A sealing sector ring (52) is fixed on the inner hole surface (50), and the sealing sector ring (52) is in sealing cooperation with the annular groove (60).

8. The right-angle pulse valve according to claim 7, characterized in that: The width of the annular groove (60) is greater than the thickness of the fan ring block (500).

9. The right-angle pulse valve according to claim 1, characterized in that: The valve body (1) is provided with a positioning groove (12) that cooperates with the bowl-shaped gasket (4).

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