Detachable venturi tube

Abstract

The utility model provides a detachable venturi tube, and belongs to the technical field of venturi tubes. The detachable venturi tube comprises a venturi tube body and a connecting tube body, the venturi tube body comprises a first tube body, a first connecting ring is installed at the top end of the first tube body, the connecting tube body comprises a second tube body, a second connecting ring is installed at the bottom of the second tube body, and a pair of connecting grooves are formed in the top of the first connecting ring; a connecting block is connected to the interior of the connecting groove through a torsional spring, a clamping block is installed on one side of the connecting block, a pair of fixing grooves are formed in the top of the second connecting ring, fixing sleeves are installed in the fixing grooves, fixing plates slide in the fixing sleeves, and the second pipe body is connected with the filter bag. When the detachable venturi tube is disassembled, the second tube body only needs to be disassembled from the first tube body, and the first tube body does not need to be disassembled, so that an operator can conveniently replace the filter bag, the disassembling process of the detachable venturi tube is simplified, and the detachable venturi tube is conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of venturi tubes, in particular to a detachable venturi tube. Background Art

[0002] At present, the venturi tube is usually used in pulse dust collectors. One end of the venturi tube is a contraction section, and the other end is a diffusion section. The principle of the venturi tube is that when the wind blows through the obstacle, the air pressure near the port above the leeward side of the obstacle is relatively low, which produces an adsorption effect and causes the air to flow. The airflow is changed from coarse to fine, so as to speed up the gas flow rate and form a "vacuum" area behind the venturi outlet.

[0003] The venturi tube in the prior art is usually an integral structure. The venturi tube is fixed in the pulse dust collector and needs to be connected to the filter bag. When the filter bag is replaced, the venturi tube needs to be removed together. However, since the internal structure of the pulse dust collector is very compact, it is not convenient for operators to remove the venturi tube, which makes the venturi tube inconvenient to use. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a detachable venturi tube.

[0005] The utility model is achieved in this way:

[0006] The cam is provided with a first end for receiving the first plug of the second rod and a second end for receiving the first plug of the second rod.

[0007] The beneficial effect of adopting the above further scheme is that when the first connecting ring and the second connecting ring are fitted and the connecting groove and the fixing groove are aligned, the fixing plate is pressed to slide into the connecting groove, at which time the card block slides into the slide groove and is squeezed to one side by the bottom of the fixing block. As the fixing plate continues to move downward, the card block slides into the gap between the side surface of the fixing block and the cavity until it is squeezed by the top of the cavity. At this time, the torsion spring drives the connecting block to reset, and the card block is located in the positive direction of the card groove. When the fixing plate is released, the fixing plate moves upward under the action of the spring, and the card block is engaged with the card groove, and the first tube body and the second tube body are fixed. The clamping block is pressed by the top of the opening and deviates into the gap between the side of the fixing block and the opening; when the fixing plate is released, the fixing plate moves upward under the action of the spring, the clamping block slides out of the sliding groove, the first tube body and the second tube body are separated, and connected to the filter bag through the second tube body; when the filter bag needs to be replaced, only the second tube body needs to be removed from the first tube body without removing the first tube body, thereby facilitating the operator to replace the filter bag, simplifying the disassembly process of the detachable venturi tube, and realizing convenient disassembly of the detachable venturi tube.

[0008] Furthermore, a protrusion is installed on the top of the cavity, and the protrusion of the protrusion deviates from the center of the slot.

[0009] The beneficial effect of adopting the above further solution is that the block is squeezed and offset by the projection, so that the block is offset into the gap between the side surface of the fixed block and the opening.

[0010] Furthermore, first connecting plates are installed on both sides of the top of the fixing plate, second connecting plates are installed on both sides of the inner bottom of the fixing sleeve, and both ends of the spring are connected to the first connecting plate and the second connecting plate respectively.

[0011] Furthermore, the clamping block is cylindrical, and the diameter of the clamping block is the same as the width of the slide groove and the distance between the outer side of the fixing block and the side surface of the opening.

[0012] Furthermore, the connecting groove and the fixing groove have the same size.

[0013] The beneficial effect of adopting the above further scheme is that by limiting the distance between the outer sides of the card block, the slide groove, the fixed block and the side of the cavity, the card block will be squeezed by the side after sliding into the slide groove and the cavity, thereby causing the connecting block to shift to one side, thereby allowing the torsion spring to accumulate energy to provide a basis for its subsequent reset.

[0014] Furthermore, a limiting sleeve is connected to the bottom end of the second tube body, and the shape of the limiting sleeve is adapted to the shape of the interior of the top end of the first tube body, and the limiting sleeve slides inside the inner top of the first tube body.

[0015] Furthermore, a filter bag is fixedly connected to the top end of the second tube.

[0016] The beneficial effect of adopting the above further solution is that the filter bag is sleeved on the top end of the second tube body and is fixedly connected thereto, so that when replacing the filter bag, the second tube body can be removed and replaced.

[0017] The beneficial effects of the utility model are as follows: the utility model obtains a detachable venturi tube through the above design. When the first connecting ring and the second connecting ring are fitted and the connecting groove and the fixing groove are aligned, the fixing plate is pressed to slide into the connecting groove. At this time, the clamping block slides into the sliding groove and is squeezed to one side by the bottom of the fixing block. As the fixing plate continues to move downward, the clamping block slides into the gap between the side surface of the fixing block and the cavity until it is squeezed by the top of the cavity. At this time, the torsion spring drives the connecting block to reset, and the clamping block is located in the positive direction of the clamping groove. When the fixing plate is released, the fixing plate moves upward under the action of the spring, and the clamping block is engaged with the groove. The first tube body and the second tube body are fixed together. At this time, the fixing plate is pressed again, the block is separated from the slot, and the block is squeezed by the top of the cavity and offset to the gap between the side of the fixing block and the cavity. When the fixing plate is released, the fixing plate moves upward under the action of the spring, the block slides out of the slide groove, the first tube body and the second tube body are separated, and connected to the filter bag through the second tube body. When the filter bag needs to be replaced, only the second tube body needs to be removed from the first tube body without removing the first tube body, thereby facilitating the operator to replace the filter bag, simplifying the disassembly process of the detachable Venturi tube, and realizing convenient disassembly and assembly of the detachable Venturi tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional structural schematic diagram of a detachable venturi tube provided by the utility model;

[0020] Figure 2 A schematic diagram of the explosion structure of a detachable venturi tube provided by the utility model;

[0021] Figure 3 A schematic cross-sectional structure diagram of a venturi body of a detachable venturi provided by the utility model;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure of structure A in the middle;

[0023] Figure 5The utility model is a front structural schematic diagram of a connecting pipe of a detachable venturi tube.

[0024] In the figure: 100, venturi body; 1001, first tube body; 1002, first connecting ring; 1003, connecting groove; 1004, connecting block; 1005, clamping block; 200, connecting tube body; 2001, second tube body; 2002, second connecting ring; 2003, fixing groove; 2004, fixing sleeve; 2005, second connecting plate; 2006, fixing plate; 2007, first connecting plate; 2008, spring; 2009, sliding groove; 2010, opening; 2011, fixing block; 2012, clamping groove; 2013, protrusion. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1 of the utility model of a detachable venturi tube

[0028] The utility model provides the following technical solutions: Figure 1-Figure 5, including a venturi tube body 100 and a connecting tube body 200, the venturi tube body 100 includes a first tube body 1001, a first connecting ring 1002 is installed at the top of the first tube body 1001, the connecting tube body 200 includes a second tube body 2001, a second connecting ring 2002 is installed at the bottom of the second tube body 2001, a pair of connecting grooves 1003 are opened on the top of the first connecting ring 1002, a connecting block 1004 is connected to the inside of the connecting groove 1003 through a torsion spring, a clamping block 1005 is installed on one side of the connecting block 1004, a pair of fixing grooves 2003 are opened on the top of the second connecting ring 2002, a fixing sleeve 2004 is installed inside the fixing groove 2003, and a sliding sleeve 2004 is installed inside the fixing sleeve 2004. The fixing plate 2006 is provided with a pair of springs 2008 connected between the fixing plate 2006 and the fixing sleeve 2004. The fixing plate 2006 slides inside the connecting groove 1003. A sliding groove 2009 and an opening 2010 are provided on the front of the fixing plate 2006. The sliding groove 2009 and the opening 2010 are connected. A fixing block 2011 is installed inside the opening 2010. A clamping groove 2012 is provided on the top of the fixing block 2011. The clamping block 1005 slides in the sliding groove 2009 and the opening 2010 and is engaged with the clamping groove 2012. When the first connecting ring 1002 and the second connecting ring 2002 are fitted and the connecting groove 1003 and the fixing groove 2003 are aligned, the fixing plate 2006 is pressed to slide into the connecting groove. 2012, and the first tube body 1001 is fixed to the second tube body 2001. When the fixing plate 2006 is released, the fixing plate 2006 moves upward under the action of the spring 2008, and the blocking block 1005 is engaged with the blocking groove 2012, and the first tube body 1001 and the second tube body 2001 are fixed together. At this time, the fixing plate 2006 is pressed again, and the blocking block 1005 is retracted. Separated from the card slot 2012, the card block 1005 is squeezed by the top of the cavity 2010 and offset to the gap between the side of the fixed block 2011 and the cavity 2010. When the fixing plate 2006 is loosened, the fixing plate 2006 moves upward under the action of the spring 2008, and the card block 1005 slides out of the slide slot 2009. The first tube body 1001 and the second tube body 2001 are separated and connected to the filter bag through the second tube body 2001. When the filter bag needs to be replaced, it is only necessary to remove the second tube body 2001 from the first tube body 1001 without removing the first tube body 1001, thereby facilitating the operator to replace the filter bag, simplifying the disassembly process of the detachable venturi tube, and realizing convenient disassembly of the detachable venturi tube.

[0029] Embodiment 2 of the detachable venturi tube of the utility model

[0030] Reference Figure 1-Figure 5 Specifically, the block 1005 is cylindrical, and the diameter of the block 1005 is the same as the width of the slide groove 2009 and the distance between the outer side of the fixed block 2011 and the side of the cavity 2010. The sizes of the connecting groove 1003 and the fixed groove 2003 are consistent. By limiting the distance between the block 1005, the slide groove 2009, the outer side of the fixed block 2011 and the side of the cavity 2010, the block 1005 will be squeezed by the side of the slide groove 2009 and the cavity 2010 after sliding into the slide groove 2009 and the cavity 2010, so that the connecting block 1004 is offset to one side, thereby causing the torsion spring to accumulate energy to provide a basis for its subsequent reset.

[0031] Embodiment 3 of the detachable venturi tube of the utility model

[0032] Reference Figure 1-Figure 5 Specifically, the bottom end of the second tube body 2001 is connected to a limiting sleeve, and the shape of the limiting sleeve is adapted to the shape of the inside of the top end of the first tube body 1001. The limiting sleeve slides inside the inner top of the first tube body 1001, and the top end of the second tube body 2001 is fixedly connected with a filter bag. The filter bag is sleeved on the top end of the second tube body 2001 and fixedly connected thereto, so that when replacing the filter bag, the second tube body 2001 can be removed for replacement.

[0033] Specifically, the working principle of the detachable Venturi tube is as follows: when in use, when the first connecting ring 1002 and the second connecting ring 2002 are fitted together and the connecting groove 1003 and the fixing groove 2003 are aligned, the fixing plate 2006 is pressed to slide into the connecting groove 1003. At this time, the block 1005 slides into the slide groove 2009 and is squeezed to one side by the bottom of the fixing block 2011. As the fixing plate 2006 continues to move downward, the block 1005 will slide into the gap between the side of the fixing block 2011 and the cavity 2010 until it is squeezed by the top of the cavity 2010. At this time, the torsion spring drives the connecting block 1004 to reset, and the block 1005 is located in the positive direction of the groove 2012. When the fixing plate 2006 is released, the fixing plate 2006 is pressed by the spring 20 08, the block 1005 is engaged with the slot 2012, and the first tube 1001 and the second tube 2001 are fixed together. At this time, the fixing plate 2006 is pressed again, and the block 1005 is separated from the slot 2012. The block 1005 is squeezed by the top of the cavity 2010 and deviates to the gap between the side of the fixing block 2011 and the cavity 2010. When the fixing plate 2006 is released, the fixing plate 2006 moves upward under the action of the spring 2008, and the block 1005 slides out of the slide groove 2009, and the first tube 1001 and the second tube 2001 are separated. Because the filter bag is sleeved on the top of the second tube 2001 and is fixedly connected to it, when replacing the filter bag, the second tube 2001 can be removed to replace it.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detachable venturi tube, characterized in that: The invention comprises a venturi tube body (100) and a connecting tube body (200), wherein the venturi tube body (100) comprises a first tube body (1001), a first connecting ring (1002) is installed at the top of the first tube body (1001), and the connecting tube body (200) comprises a second tube body (2001), a second connecting ring (2002) is installed at the bottom of the second tube body (2001), a pair of connecting grooves (1003) are opened at the top of the first connecting ring (1002), a connecting block (1004) is connected to the inside of the connecting groove (1003) via a torsion spring, a clamping block (1005) is installed on one side of the connecting block (1004), a pair of fixing grooves (2003) are opened at the top of the second connecting ring (2002), and the fixing grooves (2003) are connected to the connecting block (1004) via a torsion spring. ) is installed with a fixing sleeve (2004) inside, a fixing plate (2006) is slidably installed inside the fixing sleeve (2004), and a pair of springs (2008) are connected between the fixing plate (2006) and the fixing sleeve (2004), the fixing plate (2006) slides inside the connecting groove (1003), a sliding groove (2009) and an opening (2010) are provided on the front of the fixing plate (2006), the sliding groove (2009) and the opening (2010) are connected, a fixing block (2011) is installed inside the opening (2010), a clamping groove (2012) is provided on the top of the fixing block (2011), and the clamping block (1005) slides in the sliding groove (2009) and the opening (2010) and is clamped with the clamping groove (2012).

2. A detachable venturi tube according to claim 1, characterized in that: A protrusion (2013) is installed on the top of the opening (2010), and the protrusion of the protrusion (2013) deviates from the center of the slot (2012).

3. The detachable venturi tube according to claim 1, characterized in that: First connecting plates (2007) are installed on both sides of the top of the fixing plate (2006), second connecting plates (2005) are installed on both sides of the inner bottom of the fixing sleeve (2004), and both ends of the spring (2008) are connected to the first connecting plate (2007) and the second connecting plate (2005) respectively.

4. The detachable venturi according to claim 1, characterized in that: The clamping block (1005) is cylindrical, and the diameter of the clamping block (1005) is the same as the width of the slide groove (2009) and the distance between the outer side of the fixing block (2011) and the side of the opening cavity (2010).

5. The detachable venturi according to claim 1, characterized in that: The connecting groove (1003) and the fixing groove (2003) have the same size.

6. The detachable venturi tube according to claim 1, characterized in that: The bottom end of the second tube body (2001) is connected to a limiting sleeve, and the shape of the limiting sleeve is adapted to the shape of the interior of the top end of the first tube body (1001), and the limiting sleeve slides inside the inner top of the first tube body (1001).

7. The detachable venturi tube according to claim 6, characterized in that: A filter bag is fixedly connected to the top end of the second tube body (2001).

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