CN211444280U - Powder pumping system and connecting device thereof - Google Patents
Powder pumping system and connecting device thereof Download PDFInfo
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- CN211444280U CN211444280U CN201922113417.XU CN201922113417U CN211444280U CN 211444280 U CN211444280 U CN 211444280U CN 201922113417 U CN201922113417 U CN 201922113417U CN 211444280 U CN211444280 U CN 211444280U
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Abstract
The utility model discloses a powder pumping system and connecting device thereof, connecting device include first body, second body and operating mechanism, first body can with the sealed cooperation of second body forms the feed passage who is used for connecting pump material pipe and inlet pipe, the one end of first body be used for with inlet pipe fixed connection, the one end of second body be used for with the inlet pipe rotates to be connected, operating mechanism with the transmission of second body is connected, is used for making the second body can with first body separation or sealed cooperation. The connecting device can simply and conveniently realize the communication between the pump material pipe and the feeding pipe, and improve the working efficiency; therefore, the powder pumping system adopting the connecting device can quickly and conveniently realize the transfer or storage of the powder.
Description
Technical Field
The utility model relates to a powder pumping technology field, concretely relates to powder pumping system and connecting device thereof.
Background
The powder is used as an important raw material in industrial production, and the powder needs to be frequently pumped, transported or stored in the using process. For example, when powder needs to be stored in the storage silo, after the powder transportation tanker moves to a corresponding position, the pump material pipe of the powder transportation tanker needs to be connected with the feed pipe of the storage silo, so that the powder is stored in the storage silo in a pumping mode. In order to ensure that the pump material pipe is tightly connected with the feeding pipe in the pumping process, the traditional mode is that the pump material pipe and the feeding pipe are matched in a large-caliber and small-caliber mode, and then the pump material pipe is communicated with the feeding pipe in a mode of fastening and matching a pipe hoop and a screw. The traditional mode is relatively complicated to operate, and the working efficiency is not high.
SUMMERY OF THE UTILITY MODEL
Based on the above, the powder pumping system and the connecting device thereof are provided, the connecting device can simply and conveniently realize the communication between the pumping pipe and the feeding pipe, and the working efficiency is improved; therefore, the powder pumping system adopting the connecting device can quickly and conveniently realize the transfer or storage of the powder.
The technical scheme is as follows:
in one aspect, a connection device is provided, which includes a first pipe, a second pipe and an operating mechanism, wherein the first pipe can form a feeding channel for connecting a pump material pipe and an inlet pipe in a sealing fit with the second pipe, one end of the first pipe is used for being fixedly connected with the inlet pipe, one end of the second pipe is used for being rotatably connected with the inlet pipe, and the operating mechanism is in a transmission connection with the second pipe and is used for enabling the second pipe to be separated from or in a sealing fit with the first pipe.
When the connecting device is used, the operating mechanism is connected with the second pipe body in a transmission mode, one end of the second pipe body is driven to rotate around the rotating axis, the other end of the second pipe body is separated from the other end of the first pipe body, and therefore a large enough space is reserved between the first pipe body and the second pipe body for installation of the pump material pipe. After the pump material pipe is installed at a proper position at the other end of the first pipe body, for example, the pump material pipe is inserted into the discharge end of the pump material pipe along the length direction of the first pipe body and extends into the first pipe body; the control mechanism is connected with the second pipe body in a transmission mode, one end of the second pipe body is driven to rotate around the rotating axis, the other end of the second pipe body is in sealing fit with the other end of the first pipe body, the first pipe body and the second pipe body are in sealing fit to form a feeding channel, the feeding pipe and the feeding pipe are communicated through the feeding channel, and then powder can be pumped into the feeding pipe. Above-mentioned connecting device only needs to utilize operating device to drive second body and first body and realizes separation and sealed cooperation to the realization pump material pipe that can be simple, convenient communicates with the inlet pipe, easy operation, work efficiency is high.
The technical solution is further explained below:
in one embodiment, one end of the first pipe body and one end of the second pipe body are respectively provided with a first sealing structure used for being in sealing fit with the feeding end of the feeding pipe.
In one embodiment, the feeding end of the feeding pipe is provided with a first joint, the first joint is provided with a first clamping portion, and the first sealing structure is provided for clamping a second clamping portion matched with the first clamping portion.
In one embodiment, the other end of the first pipe body and the other end of the second pipe body are respectively provided with a second sealing structure used for being in sealing fit with the discharge end of the pump material pipe.
In one embodiment, the discharge end of the pump material pipe is provided with a second joint, the second joint is provided with a third clamping portion, and the second sealing structure is provided with a fourth clamping portion in clamping fit with the third clamping portion.
In one embodiment, the operating mechanism includes a transmission member and a pulling member, one end of the transmission member is connected to the second tube, one end of the transmission member is connected to one end of the pulling member, and a connection portion between the transmission member and the pulling member is rotatably connected to the feeding tube.
In one embodiment, when the first pipe body and the second pipe body are in sealing fit, the transmission member is disposed at an included angle relative to the pumping direction.
In one embodiment, a first elastic pad is arranged at the joint part of the first pipe body and the second pipe body; and/or a second elastic cushion is arranged at the joint part of the second pipe body and the first pipe body.
In another aspect, a powder pumping system is provided, which comprises a pump material pipe, a feeding pipe and the connecting device, wherein the connecting device is used for connecting the pump material pipe and the feeding pipe.
When the powder pumping system is used, the operating mechanism is connected with the second pipe body in a transmission mode, one end of the second pipe body is driven to rotate around the rotating axis, the other end of the second pipe body is separated from the other end of the first pipe body, and therefore a large enough space is reserved between the first pipe body and the second pipe body for installation of a pump material pipe. The pump material pipe is arranged at a proper position at the other end of the first pipe body; the control mechanism is connected with the second pipe body in a transmission mode, one end of the second pipe body is driven to rotate around the rotating axis, the other end of the second pipe body is in sealing fit with the other end of the first pipe body, the first pipe body and the second pipe body are in sealing fit to form a feeding channel, the feeding pipe and the feeding pipe are communicated through the feeding channel, and then powder can be pumped into the feeding pipe. Above-mentioned powder pumping system only needs to utilize operating device to drive second body and first body and realizes separation and sealed cooperation to the intercommunication of realization pump material pipe and inlet pipe that can be simple, convenient, easy operation, work efficiency is high, can be swiftly, convenient realization powder transport or the storage.
In one embodiment, a preset gap is left between the pump material pipe and the feeding pipe.
In one embodiment, the powder pumping system further comprises a pressure relief element for relieving pressure from the feed channel.
Drawings
FIG. 1 is a schematic diagram of the construction of a frit pumping system according to one embodiment;
FIG. 2 is an exploded view of the powder pumping system of FIG. 1;
FIG. 3 is a cross-sectional view of the powder pumping system A-A of FIG. 1.
Description of reference numerals:
10. the powder pumping system comprises a powder pumping system 100, a connecting device 110, a first pipe body 120, a second pipe body 130, an operating mechanism 131, a transmission piece 132, a pulling piece 140, a feeding channel 150, a first bending flange 160, a second bending flange 200, a pumping pipe 210, a second joint 211, a second flange 300, a feeding pipe 310, a first joint 311 and a first flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "disposed on," "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured" to, or "fixedly coupled" to another element, it can be removably secured or non-removably secured to the other element. When an element is referred to as being "connected," "pivotally connected," to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the present invention, the terms "first", "second", "third", and the like do not denote any particular quantity or order, but rather are used to distinguish one name from another.
It will also be understood that when interpreting elements, although not explicitly described, the elements are to be interpreted as including a range of errors which are within the acceptable range of deviation of the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.
As shown in fig. 1 to 3, in one embodiment, a connecting device 100 is provided, which includes a first tube 110, a second tube 120, and a manipulating mechanism 130, wherein the first tube 110 is capable of being sealed and engaged with the second tube 120 to form a feeding channel 140 for connecting a pump tube 200 with a feeding tube 300, one end of the first tube 110 is configured to be fixedly connected with the feeding tube 300, one end of the second tube 120 is configured to be rotatably connected with the feeding tube 300, and the manipulating mechanism 130 is in driving connection with the second tube 120 and is configured to enable the second tube 120 to be separated from or sealed and engaged with the first tube 110.
When the connecting device 100 of the above embodiment is used, the operating mechanism 130 is in transmission connection with the second tube 120 to drive one end of the second tube 120 to rotate around the rotation axis, so that the other end of the second tube 120 is separated from the other end of the first tube 110, and a space large enough for the pump material tube 200 to be installed is left between the first tube 110 and the second tube 120. After the pumping pipe 200 is installed at a suitable position at the other end of the first pipe 110, for example, the pumping pipe 200 is inserted into the discharge end of the pumping pipe 200 along the length direction (as shown in the direction B in fig. 1 and 2) of the first pipe 110 and extends into the first pipe 110; and then, the operating mechanism 130 is in transmission connection with the second tube 120 to drive one end of the second tube 120 to rotate around the rotation axis, so that the other end of the second tube 120 is in sealing fit with the other end of the first tube 110, the first tube 110 and the second tube 120 are in sealing fit to form a feeding channel 140, the feeding channel 140 is used for communicating the pumping tube 200 with the feeding tube 300, and powder can be pumped into the feeding tube 300. The connecting device 100 of the above embodiment only needs to use the operating mechanism 130 to drive the second pipe body 120 and the first pipe body 110 to realize separation and sealing fit, so that the pump material pipe 200 and the feed pipe 300 can be simply and conveniently communicated, and the connecting device is simple to operate and high in working efficiency.
The one end of first body 110 can adopt modes such as riveting, welding to realize, only need satisfy make first body 110 can be stable, reliable realize being connected with inlet pipe 300 can. The one end of second body 120 is connected with the rotation of inlet pipe 300, can realize through modes such as articulated or pivot connection, only need satisfy can make second body 120 can rotate around corresponding axis of rotation can. When the first pipe 110 is in sealing engagement with the second pipe 120, the first pipe 110 and the second pipe 120 can form a supply channel 140 with openings at two ends, so as to communicate the pump pipe 200 with the feed pipe 300.
It should be emphasized that, after the connecting device 100 communicates the pumping pipe 200 and the feeding pipe 300, not only fine particle materials such as powder materials can be conveyed, but also liquid materials can be conveyed, and only the pumping requirement needs to be met. For the purpose of facilitating the description of the present application, the following description will be made by taking the conveyance of the powder as an example.
In one embodiment, one end of the first tube 110 and one end of the second tube 120 are each provided with a first sealing structure (not labeled) for sealing engagement with the feeding end of the feeding tube 300. Therefore, the first sealing structure is in sealing fit with the feeding end of the feeding pipe 300, so that the problem of powder leakage between the feeding end of the feeding pipe 300 and the discharging end of the feeding channel 140 can be avoided, tight sealing fit between the feeding end of the feeding pipe 300 and the discharging end of the feeding channel 140 is guaranteed, and normal conveying of powder is guaranteed.
The sealing fit of the first sealing structure and the feeding end of the feeding pipe 300 can be realized in a clamping fit manner or in a tight fit manner, and only the requirement that no leakage occurs between the feeding end of the feeding pipe 300 and the discharging end of the feeding channel 140 is met.
As shown in fig. 2 and 3, in one embodiment, the feeding end of the feeding tube 300 is provided with a first joint 310, the first joint 310 is provided with a first clamping portion, and the first sealing structure is provided with a second clamping portion for clamping and matching with the first clamping portion. So, utilize the joint cooperation of first joint portion and second joint portion for first seal structure realizes inseparable sealed cooperation with first joint 310, guarantees can not take place to leak in the powder transportation process.
The clamping cooperation of first joint portion and second joint portion can be realized through pothook and buckle complex mode, also can realize through the mode of arch and draw-in groove block.
As shown in fig. 3, in this embodiment, a first flange 311 is circumferentially disposed on the first joint 310, the first flange 311 and the outer sidewall of the feeding tube 300 form a first locking groove (not labeled), and a first bending flange 150 is disposed at one end of the first tube 110 and one end of the second tube 120, and the first bending flange 150 can be engaged with the first locking groove. Thus, after the first bending flange 150 is clamped into the first clamping groove, the contact area is large, the first connector 310 and the discharge end of the feeding channel 140 can be effectively sealed, and the sealing effect is ensured.
Meanwhile, in order to facilitate the insertion of the first connector 310 into the discharge end of the supply passage 140, the first connector 310 may be configured to have a conical shape, so as to guide the insertion of the first connector 310 into the supply passage 140, thereby facilitating the assembly of the feed pipe 300 with the connection device 100.
In one embodiment, the other end of the first tube 110 and the other end of the second tube 120 are both provided with a second sealing structure (not labeled) for sealing engagement with the discharge end of the pumping tube 200. Thus, the second sealing structure is in sealing fit with the discharge end of the pump material pipe 200, so that the problem of powder leakage between the discharge end of the pump material pipe 200 and the feed end of the feed channel 140 can be avoided, tight sealing fit between the discharge end of the pump material pipe 200 and the feed end of the feed channel 140 is ensured, and normal conveying of powder is ensured.
The sealing fit of the second sealing structure and the discharge end of the pump material pipe 200 can be realized in a clamping fit manner, and can also be realized in a tight fit manner, and only the requirement that no leakage occurs between the discharge end of the pump material pipe 200 and the feed end of the feed channel 140 is met.
As shown in fig. 2 and 3, in an embodiment, a discharge end of the pump material pipe 200 is provided with a second joint 210, the second joint 210 is provided with a third clamping portion (not labeled), and the second sealing structure is provided as a fourth clamping portion (not labeled) for clamping and matching with the third clamping portion. So, utilize the joint cooperation of third joint portion and fourth joint portion for the second seal structure realizes inseparable sealed cooperation with second joint 210, guarantees can not take place to leak in the powder transportation process.
The joint cooperation of third joint portion and fourth joint portion can be realized through pothook and buckle complex mode, also can realize through the mode of arch and draw-in groove block.
As shown in fig. 3, specifically, in this embodiment, a second flange 211 is disposed on the second joint 210 in the circumferential direction, the second flange 211 forms a second locking groove (not labeled) with the outer sidewall of the pumping tube 200, the other end of the first tube 110 and the other end of the second tube 120 are both provided with a second bent flange, and the second bent flange 160 can be in locking fit with the second locking groove. So, second turn-ups 160 card back in going into the second draw-in groove of bending, area of contact is big, can effectively seal the second and connect 210 and feed channel 140's feed end, guarantees sealed effect.
Meanwhile, in order to facilitate the insertion of the second joint 210 into the feeding end of the feeding channel 140, the second joint 210 may be provided with a conical profile, so as to guide the insertion of the second joint 210 into the feeding channel 140, and facilitate the assembly of the pump material pipe 200 and the connection device 100.
The operating mechanism 130 may be a link mechanism, a gear mechanism or other structures capable of driving one end of the second tube 120 to rotate around the rotation axis, so as to realize the separation and sealing engagement between the other end of the second tube 120 and the first tube 110.
As shown in fig. 1 and 2, in one embodiment, the operating mechanism 130 includes a transmission member 131 and a pulling member 132. One end of the transmission member 131 is connected to the second tube 120, one end of the transmission member 131 is connected to one end of the pulling member 132, and the connection portion between the transmission member 131 and the pulling member 132 is rotatably connected to the feeding tube 300. Thus, an external force is applied to pull the pulling member 132, so that the pulling member 132 and the transmission member 131 rotate around the rotation axis of the connection portion of the pulling member 132 and the transmission member 131 (as shown in the direction D of fig. 1 and 2), and thereby the second tube 120 is driven to rotate around the rotation axis, and the other end of the second tube 120 is separated from or hermetically fitted to the first tube 110. The transmission member 131 and the pulling member 132 may be provided in a rod shape or a column shape. The transmission member 131 and the pulling member 132 may be connected together by welding or pivot connection, and then rotatably connected to the feeding pipe 300 by a pivot connection or hinge connection. The force application end of the pulling member 132 may be provided with a handle for easy operation and corresponding anti-slip threads or grooves, so that the operation is more convenient and reliable.
Further, when the first tube 110 and the second tube 120 are in sealing engagement, the transmission member 131 is disposed at an angle (as shown in β of fig. 1) relative to the pumping direction (as shown in E of fig. 3), so that when an external force is applied to the pulling member 132 to cause the second tube 120 to be in sealing engagement with the first tube 110, the transmission member 131 is disposed at an angle relative to the length direction of the second tube 120, so as to apply a certain abutting force (as shown in F of fig. 1)1Shown) to the second tube 120, so that the second tube 120 is combined with the first tube 110 more tightly, and leakage caused by a gap between the second tube 120 and the first tube 110 is prevented; meanwhile, the transmission member 131 forms an included angle with the length direction of the second tube 120, and can also be arranged at the first positionThe two tube bodies 120 slide relative to the first tube body 110, so that the second tube body 120 and the first tube body 110 are prevented from being dislocated, and the pump tube 200 can be accurately matched with the feed end of the feed channel 140 in a sealing manner.
In any of the above embodiments, a first elastic pad (not shown) is disposed at the joint portion of the first tube 110 and the second tube 120. Thus, when the second tube 120 is driven by the operating mechanism 130 to move to be attached to the first tube 110, the acting force applied to the first tube 110 by the second tube 120 deforms the first elastic pad, so as to fill up the gap between the second tube 120 and the first tube 110, thereby ensuring that the second tube 120 can be reliably sealed and matched with the first tube 110, and ensuring that no leakage occurs during the powder conveying process of the feeding channel 140. The first elastic pad can adopt a rubber pad or a silica gel pad. The first elastic pad may be disposed at a joint portion of the first tube 110 and the second tube 120 by bonding, hot pressing, or the like.
In any of the above embodiments, a second elastic pad (not shown) is disposed at the joint of the second tube 120 and the first tube 110. Thus, when the second tube 120 is driven by the operating mechanism 130 to move to be attached to the first tube 110, the second elastic pad is deformed by the acting force applied to the first tube 110 by the second tube 120, so as to fill up the gap between the second tube 120 and the first tube 110, thereby ensuring that the second tube 120 can be reliably sealed and matched with the first tube 110, and ensuring that no leakage occurs during the powder conveying process of the feeding channel 140. The second elastic pad can adopt a rubber pad or a silica gel pad. The second elastic pad may be disposed at the joint portion of the second tube 120 and the first tube 110 by bonding, hot pressing, or the like. Meanwhile, the first elastic cushion and the second elastic cushion are arranged, so that the second pipe body 120 can be attached to the first pipe body 110 more tightly, and the sealing effect is better.
As shown in fig. 1 to fig. 3, in an embodiment, there is further provided a powder pumping system 10, which includes a pumping tube 200, a feeding tube 300, and the connection device 100 of any of the above embodiments, where the connection device 100 is used to connect the pumping tube 200 and the feeding tube 300.
When the powder pumping system 10 of the above embodiment is used, the operating mechanism 130 is in transmission connection with the second tube 120 to drive one end of the second tube 120 to rotate around the rotation axis, so that the other end of the second tube 120 is separated from the other end of the first tube 110, and a space large enough for the pump material tube 200 to be installed is left between the first tube 110 and the second tube 120. The pumping pipe 200 is installed at a proper position at the other end of the first pipe 110; and then, the operating mechanism 130 is in transmission connection with the second tube 120 to drive one end of the second tube 120 to rotate around the rotation axis, so that the other end of the second tube 120 is in sealing fit with the other end of the first tube 110, the first tube 110 and the second tube 120 are in sealing fit to form a feeding channel 140, the feeding channel 140 is used for communicating the pumping tube 200 with the feeding tube 300, and powder can be pumped into the feeding tube 300. The powder pumping system 10 of the above embodiment only needs to utilize the operating mechanism 130 to drive the second pipe body 120 and the first pipe body 110 to realize separation and sealing matching, so that the connection between the pumping pipe 200 and the feeding pipe 300 can be simply and conveniently realized, the operation is simple, the working efficiency is high, and the transfer or storage of powder can be quickly and conveniently realized.
The above-described coupling device 100 can be applied not only to the powder pumping system 10 but also to a conveying system of liquid materials.
As shown in fig. 3, in one embodiment, a predetermined gap (shown as F in fig. 3) is left between the pump feed pipe 200 and the feed pipe 300. Thus, the pump material pipe 200 can be smoothly inserted along the length direction of the first pipe body 110 until the discharge end of the pump material pipe 200 extends into the first pipe body 110 without being interfered by the feeding pipe 300. The pump material pipe 200 extends into the first pipe body 110, and the second pipe body 120 is driven by the control mechanism 130 to move to the position where the second pipe body is hermetically matched with the first pipe body 110, so that the pump material pipe 200 can move towards the direction away from the feeding pipe 300, and the third clamping part on the second joint 210 of the pump material pipe 200 is clamped and matched with the fourth clamping part of the second sealing structure, so that the pump material pipe 200 can be tightly and hermetically matched with the feeding end of the feeding channel 140, and the leakage of the powder material in the conveying process is avoided. Simultaneously, when pump material pipe 200 began to pump the material in feed channel 140, pressure in the feed channel 140 rose to exert effort to pump material pipe 200 and inlet pipe 300, and then make first joint portion inseparabler with second joint portion joint, third joint portion inseparabler with the also joint of fourth joint portion, sealed effect is better. After the powder is conveyed, the pumping pipe 200 can be continuously operated for 2min to 3min, and the high-pressure air is adopted to completely convey the powder remained in the feeding channel 140 into the feeding pipe 300 until the powder enters the storage silo. The preset gap between the pump material pipe 200 and the feed pipe 300 can be flexibly adjusted according to actual use requirements, for example, the preset gap can be 3 cm-8 cm, and only the use requirements need to be met.
In one embodiment, the powder pumping system 10 further comprises a pressure relief element (not shown) for relieving pressure from the feed channel 140. Thus, after the powder is conveyed, the pressure in the feeding channel 140 is relieved by the pressure relief element, and when the second tube 120 rotates relative to the first tube 110, the impact on the rotating shaft of the second tube 120 due to the excessive pressure in the feeding channel 140 is prevented, and the related parts are prevented from being damaged. After the pressure relief is completed, the pump material pipe 200 is moved towards the direction close to the feeding pipe 300, so that the clamping cooperation between the third clamping portion and the fourth clamping portion is eliminated, and the pump material pipe 200 can be smoothly moved out of the first pipe body 110. The pressure relief element may be a pressure relief valve, which may be inserted, clamped, welded, etc. on the sidewall of the supply channel 140 (on the first pipe body 110 or the second pipe body 120).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples represent only a few embodiments of the present invention, which are described in detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (11)
1. The connecting device is characterized by comprising a first pipe body, a second pipe body and an operating mechanism, wherein the first pipe body can be matched with the second pipe body in a sealing mode to form a feeding channel for connecting a pump material pipe and an inlet pipe, one end of the first pipe body is used for being fixedly connected with the inlet pipe, one end of the second pipe body is used for being connected with the inlet pipe in a rotating mode, and the operating mechanism is in transmission connection with the second pipe body and used for enabling the second pipe body to be separated from or matched with the first pipe body in a sealing mode.
2. A coupling device according to claim 1, wherein one end of the first tubular body and one end of the second tubular body are each provided with a first sealing arrangement for sealing engagement with the feed end of the feed tube.
3. The connecting device as claimed in claim 2, wherein the feeding end of the feeding pipe is provided with a first joint, the first joint is provided with a first clamping portion, and the first sealing structure is provided with a second clamping portion for clamping cooperation with the first clamping portion.
4. The connecting device according to claim 1, wherein the other end of the first tube and the other end of the second tube are each provided with a second sealing structure for sealing engagement with the discharge end of the pump material tube.
5. The connecting device according to claim 4, characterized in that a second joint is arranged at the discharge end of the pump material pipe, the second joint is provided with a third clamping portion, and the second sealing structure is provided with a fourth clamping portion matched with the third clamping portion in a clamping manner.
6. A connection device according to any one of claims 1 to 5, wherein the operating mechanism comprises a transmission member and a pulling member, one end of the transmission member is connected to the second tube, one end of the transmission member is connected to one end of the pulling member, and the connection portion of the transmission member and the pulling member is rotatably connected to the feeding tube.
7. A connection device according to claim 6, wherein the drive member is disposed at an angle relative to the direction of pumping when the first and second bodies are in sealing engagement.
8. The connecting device according to any one of claims 1 to 5, wherein a first elastic pad is arranged at the joint of the first pipe body and the second pipe body; and/or a second elastic cushion is arranged at the joint part of the second pipe body and the first pipe body.
9. A powder pumping system comprising a pump pipe, a feed pipe and a connecting device according to any one of claims 1 to 8 for connecting said pump pipe and said feed pipe.
10. The powder pumping system of claim 9, wherein a predetermined gap is left between the pump feed tube and the feed tube.
11. The powder pumping system of claim 9, further comprising a pressure relief element for relieving pressure from the feed channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922113417.XU CN211444280U (en) | 2019-11-28 | 2019-11-28 | Powder pumping system and connecting device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922113417.XU CN211444280U (en) | 2019-11-28 | 2019-11-28 | Powder pumping system and connecting device thereof |
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| CN211444280U true CN211444280U (en) | 2020-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110817487A (en) * | 2019-11-28 | 2020-02-21 | 中铁建华南建设有限公司 | Powder pumping system and connecting device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110817487A (en) * | 2019-11-28 | 2020-02-21 | 中铁建华南建设有限公司 | Powder pumping system and connecting device thereof |
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