CN214132300U - Can realize refrigerated pump head structure and have pump head refrigerated flush coater - Google Patents
Can realize refrigerated pump head structure and have pump head refrigerated flush coater Download PDFInfo
- Publication number
- CN214132300U CN214132300U CN202121691433.8U CN202121691433U CN214132300U CN 214132300 U CN214132300 U CN 214132300U CN 202121691433 U CN202121691433 U CN 202121691433U CN 214132300 U CN214132300 U CN 214132300U
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- Prior art keywords
- pump head
- cooling
- pipe
- channel
- backflow
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- Expired - Fee Related
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- 238000001816 cooling Methods 0.000 claims abstract description 86
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000005507 spraying Methods 0.000 claims abstract description 29
- 238000010992 reflux Methods 0.000 claims abstract description 15
- 239000007921 spray Substances 0.000 claims description 14
- 238000010276 construction Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 10
- 239000011248 coating agent Substances 0.000 description 31
- 238000000576 coating method Methods 0.000 description 31
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 239000003973 paint Substances 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 7
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a pump head structure capable of realizing cooling and a spraying machine with pump head cooling, relating to the technical field of spraying machines, in particular to a pump head structure capable of realizing cooling and a spraying machine with pump head cooling; the pump head comprises a pump head body, wherein a material extruding channel is formed in the pump head body, one channel opening of the material extruding channel is a material inlet, and the other channel opening of the material extruding channel is a material outlet; the device also comprises a connector and a backflow switch device; the connector is fixed on the pump head body, a cavity is formed on the connector, the cavity is communicated with the discharge port of the extruding channel, a discharge channel is formed on the connector, and a channel port of the discharge channel is communicated with the cavity; a cooling reflux pipe is also formed on the connecting head, and one end of the cooling reflux pipe is communicated with the cavity; the backflow switch device is arranged on the cooling backflow pipe, and the backflow switch device is a switch device for controlling the cooling backflow pipe to be switched on and off. The utility model discloses can cool off the pump head body, have higher stability to reduce the maintenance cost.
Description
Technical Field
The utility model relates to a flush coater technical field especially relates to can realize refrigerated pump head structure, still relates to a flush coater with pump head cooling.
Background
The existing spraying machine mostly adopts a rotating shaft driven by a motor to convey mixed coating in a hopper to a pump head for pressurization, and the pressurized mixed coating is conveyed to a spray head through a spraying conveying pipe and then sprayed on a wall to realize the spraying treatment of the wall. The method is simple to operate, but in the process of wall spraying treatment, when a wall at another place is sprayed, the spray head can be closed for a short time, the pump head of the spraying machine stops working during the period, the mixed coating in the mixed coating stops flowing, the mixed coating stays in the high-temperature pump head and forms a plurality of small lumps due to dehydration, the small lumps can obstruct the smoothness of the pipeline, once the pipeline smoothness is insufficient, the load of the pump head is increased, the temperature of the pump head is increased, more small lumps are formed, the vicious circle finally causes pipe blockage, the machine is required to be stopped for cleaning every time, otherwise, the pipeline is scrapped, the construction efficiency is obviously reduced, and the maintenance cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide, provide and to realize refrigerated pump head structure, can cool off the pump head body, avoid stifled pipe, have higher stability to reduce the maintenance cost.
The utility model provides a technical scheme that its technical problem adopted is: the pump head structure capable of realizing cooling comprises a pump head body, wherein an extruding channel is formed in the pump head body, one channel opening of the extruding channel is a feeding hole, and the other channel opening of the extruding channel is a discharging hole; the method is characterized in that: the device also comprises a connector and a backflow switch device; the connecting head is fixed on the pump head body, a cavity is formed by connecting the connecting head and the pump head body, the cavity is communicated with a discharge hole of the extruding channel of the pump head body, a discharge channel is formed on the connecting head, and a channel opening of the discharge channel is communicated with the cavity; a cooling reflux pipe is also formed on the connecting head and is positioned above the discharge channel, and one end of the cooling reflux pipe is communicated with the cavity; the backflow switch device is arranged on the cooling backflow pipe, and the backflow switch device is a switch device for controlling the cooling backflow pipe to be switched on and off.
The utility model discloses a theory of operation:
the utility model is applied to a spraying machine, in the using process, mixed coating in a hopper of the spraying machine enters a pump head body from a feed inlet of a material extruding channel of the pump head body, and the mixed coating pressurized by the material extruding channel enters a cavity of a connector from a discharge outlet of the material extruding channel; when the spraying machine is in a spraying working state, the backflow switch device is in a closed state to enable the cooling backflow pipe to be turned off, so that the mixed coating in the cavity can only leave from the discharge channel of the connector and be conveyed to the external spray head; when the backflow switch device is in the open mode and outside shower nozzle is in the closed condition, the cooling reflux pipe leads to outward, the mixed coating that reachs in the cavity of connector this moment returns to the hopper through the cooling reflux pipe and the backward flow conveying pipeline of being connected with the cooling reflux pipe, because the cooling reflux pipe, the length of backward flow conveying pipeline is short and under the general condition the internal diameter than the spraying conveying pipeline big, consequently, the working resistance of pump head is far less this moment, and the mixed coating of crowded material passageway of a large amount of flows through can take away the heat fast, thereby play the cooling effect to the pump head body, avoid the mixed coating in the crowded material passageway of pump head body to form little caking because of the dehydration, and then avoid crowded material passageway to appear blockking up, thereby realize protecting the pump head body, improve the utility model discloses a stability, thereby reduce the maintenance.
Further, as mentioned above, the pump head structure capable of achieving cooling includes the backflow switching device including the cylinder, the baffle plate and the mounting bracket; a switch gap is formed on the cooling return pipe, the mounting frame is mounted outside the cooling return pipe, the air cylinder is mounted on the mounting frame, and the movable end of the air cylinder is connected with the blocking piece; the baffle piece extends into the switch gap, and the cooling return pipe is in an externally-communicated state or a turn-off state under the driving of the movable end of the cylinder by the baffle piece.
Furthermore, the switch gap is located above the central axis of the cooling return pipe, and the blocking piece switches off the cooling return pipe along the transverse direction of the cooling return pipe.
Further, as mentioned above, in the pump head structure capable of achieving cooling, the axis of the discharge channel of the connecting head is collinear with the axis of the extrusion channel of the pump head body.
Further, as mentioned above, in the pump head structure capable of achieving cooling, the cavity of the connector is a cone structure, the height of the cone structure is collinear with the axis of the extruding channel, and a channel opening of the discharging channel is communicated with the cone tip of the cavity.
Realize the technical scheme of the utility model, following beneficial effect has: the utility model discloses can cool off the pump head body, avoid stifled pipe, have higher stability to reduce the maintenance cost.
The utility model also provides a flush coater with pump head cooling can cool off the pump head body, avoids stifled pipe, has higher stability to reduce the maintenance cost.
The utility model provides a technical scheme that its technical problem adopted is: the spraying machine with pump head cooling function comprises a pump head, a hopper and a gas pipe; the pump head is of a pump head structure capable of realizing cooling in the scheme; the device also comprises a backflow conveying pipe, one end of the backflow conveying pipe is communicated with the cooling backflow pipe of the pump head, and the other end of the backflow conveying pipe is positioned on the material conveying opening of the hopper.
The utility model discloses a theory of operation:
when in a normal spraying construction state, the backflow switch device is in an off state; when the shower nozzle of this local is closed to the short duration, the backward flow switching device will switch into the outer state of leading to, and the mixed coating of crowded material passageway of flowing through in a large number this moment can take away the heat fast to play the cooling action to the pump head body, avoid the mixed coating in the crowded material passageway of pump head body to form little caking because of the dehydration, and then avoid crowded material passageway to appear blockking up, thereby realize protecting the pump head body, improve the utility model discloses a stability, thereby reduce the maintenance cost.
Further, the coating machine with pump head cooling as described above further includes a sensor for controlling whether the backflow switching device is actuated; the sensing end of the sensor is arranged on the gas pipe.
Further, in an applicator with pump head cooling as described above, the sensor is a pressure sensor or an air flow sensor.
Further, in the sprayer with pump head cooling as described above, the nozzle includes an air injection device and a nozzle pipe; the input port of the nozzle pipe is communicated with the spraying material conveying pipe; the air injection device comprises an air valve switch and an air injection pipe, wherein the air inlet end of the air valve switch is communicated with the air delivery pipe, the air outlet end of the air valve switch is communicated with one end of the air injection pipe, and the other end of the air injection pipe extends into the inner part of the nozzle pipe and is arranged towards the output port of the nozzle pipe.
Further, in the case of the above described applicators with pump head cooling, the axis of the gas lance is perpendicular to the plane of the outlet opening of the nozzle tube.
Realize the technical scheme of the utility model, following beneficial effect has: the utility model discloses can cool off the pump head body, avoid stifled pipe, have higher stability to reduce the maintenance cost.
Drawings
FIG. 1 is a schematic structural diagram of a pump head structure capable of achieving cooling according to example 1;
FIG. 2 is a schematic structural view of the case where the reverse flow switch device of embodiment 1 is turned off;
FIG. 3 is a schematic view of the structure of the coating machine with pump head cooling of example 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
fig. 5 is a partial enlarged view of fig. 3 at B;
FIG. 6 is a schematic view of the structure of FIG. 5 in a state where the backflow switching device is closed;
description of reference numerals:
1-pump head body; 11-a material extruding channel; 12-a feed inlet; 13-a discharge hole; 2-a connector; 21-a cavity; 22-a discharge channel; 23-a cooling return pipe; 24-switch gap; 3-a back flow switch device; 31-a cylinder; 32-a baffle plate; 33-a mounting frame;
10-a housing; 101-a hopper; 1011-pushing holes; 20-pump head construction; 30-a motor; 40-a rotating shaft; 401-material conveying screw thread; 50-an air pump; 60-gas conveying pipe; 70-spraying a material conveying pipe; 80-a spray head; 801-nozzle tube; 802-a gas injection device; 8021-air valve switch; 8022-gas lances; 90-backflow conveying pipe; 100-a sensor; 200-mixed paint; 300-main control module.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1
Fig. 1 and 2 show a pump head structure 20 capable of achieving cooling in embodiment 1, which includes a pump head body 1, an extruding passage 11 is formed in the pump head body 1, one passage opening of the extruding passage 11 is a feeding opening 12, and the other passage opening is a discharging opening 13; the device also comprises a connector 2 and a backflow switch device 3; the connector 2 is fixed on the pump head body 1, the connector 2 is connected with the pump head body 1 to form a cavity 21, the cavity 21 is communicated with the discharge hole 13 of the extruding channel 11 of the pump head body 1, a discharge channel 22 is formed on the connector 2, and a channel port of the discharge channel 22 is communicated with the cavity 21; a cooling reflux pipe 23 is also formed on the connector 2, the cooling reflux pipe 23 is positioned above the discharge channel 22, and one end of the cooling reflux pipe 23 is communicated with the cavity 21; the backflow switching device 3 is installed on the cooling return pipe 23, and the backflow switching device 3 is a switching device for controlling the cooling return pipe 23 to be switched on and off.
The utility model discloses a theory of operation:
the utility model is applied to a spraying machine, in the using process, the mixed coating in the hopper of the spraying machine enters the pump head body 1 from the feed inlet of the extrusion channel 11 of the pump head body 1, and the mixed coating pressurized by the extrusion channel 11 enters the cavity 21 of the connector 2 from the discharge outlet of the extrusion channel 11; when the spraying machine is in a spraying working state, the backflow switch device 3 is in a closed state, so that the cooling backflow pipe 23 is turned off, and therefore the mixed coating in the cavity 21 can only be separated from the discharge channel 22 of the connector 2 and conveyed to an external spray head; when backflow switch device 3 is in the open mode and outside shower nozzle is in the closed condition, cooling back flow 23 leads to outward, reach the mixed coating in the cavity 21 of connector 2 this moment and return to the hopper through cooling back flow 23 and the backward flow conveying pipeline of being connected with cooling back flow 23, because cooling back flow 23, the length of backward flow conveying pipeline is short and the big of the spraying conveying pipeline of internal diameter under the general condition, consequently, the working resistance of pump head is much little this moment, and the mixed coating of crowded material passageway 11 of a large amount of flows through can take away the heat fast, thereby play the cooling action to pump head body 1, avoid the mixed coating in crowded material passageway 11 of pump head body 1 to form little caking because of the dehydration, and then avoid crowded material passageway 11 to appear blockking up, thereby realize protecting pump head body 1, improve the utility model discloses a stability, thereby reduce the maintenance cost.
In order to make the structure more reasonable, as shown in fig. 1 and fig. 2, the backflow switching device 3 comprises a cylinder 31, a baffle 32 and a mounting frame 33; a switch gap 24 is formed on the cooling return pipe 23, a mounting frame 33 is mounted outside the cooling return pipe 23, a cylinder 31 is mounted on the mounting frame 33, and the movable end of the cylinder 31 is connected with the baffle 32; the baffle 32 extends into the switch gap 24, and the baffle 32 is driven by the movable end of the cylinder 31 to enable the cooling return pipe 23 to be in an externally-communicated state or a closed state. Wherein said flap 32 closes off the cooling return 23 in the direction transverse to the cooling return 23. Such a design makes it easier to control the open or closed state of the cooling return pipe 23.
In order to make the structure more reasonable, as shown in fig. 1 and 2, the axis of the discharge passage 22 of the connecting head 2 is collinear with the axis of the extruding passage 11 of the pump head body 1. This design allows the mixed dope flowing out of the extruding channel 11 to more easily exit from the discharging channel 22.
In order to make the structure more reasonable, as shown in fig. 1 and fig. 2, the cavity 21 of the connecting head 2 is a cone structure, the height of the cone structure is collinear with the axis of the extruding channel 11, and a channel opening of the discharging channel 22 is communicated with the cone tip of the cavity 21. The design gradually increases the pressure of the mixed coating when the mixed coating flows from the cavity 21 to the direction from the discharge port 13 of the extrusion channel 11 to the discharge channel 22, so that the mixed coating can more easily leave the cavity 21 of the connecting head 2 and enter the discharge channel 22 or the cooling return pipe 23.
Example 2
Fig. 3 to 6 show the coating machine with pump head cooling of embodiment 2, which includes a housing 10, a pump head structure 20, a motor 30, a rotating shaft 40, an air pump 50, an air pipe 60, a coating material delivery pipe 70 and a spray head 80; a hopper 101 is formed on the housing 10, and a material pushing hole 1011 is formed on the hopper 101; the motor 30 is mounted on the casing 10; the rotating shaft 40 is arranged in the hopper 101, the front end of the rotating shaft 40 penetrates through the material pushing hole 1011 to extend out of the hopper 101, the rear end of the rotating shaft 40 penetrates through the hopper 101 to be in transmission connection with the motor 30, and a material conveying thread 401 is formed on the circumferential surface of the rotating shaft 40; the air pump 50 is arranged on the shell 10, one end of the air pipe 60 is communicated with the output port of the air pump 50, and the other end of the air pipe 60 is communicated with the air inlet end of the spray head 80; the pump head structure 20 is the structure of embodiment 1; the pump head body 1 of the pump head structure 20 is sleeved at the front end of the rotating shaft 40, the pump head body 1 is fixed with the hopper 101, the feed inlet of the pump head body 1 is communicated with the material pushing hole 1011 of the hopper 101, and the discharge channel 22 of the connector 2 of the pump head structure 20 is communicated with one end of the spraying material conveying pipe 70; the other end of the spraying material conveying pipe 70 is communicated with the input port of the spray head 80; the pump head structure comprises a pump head structure 20 and is characterized by further comprising a backflow conveying pipe 90, wherein one end of the backflow conveying pipe 90 is communicated with a cooling backflow pipe 23 of a connector 2 of the pump head structure 20, and the other end of the backflow conveying pipe 90 is located on a material conveying opening of a hopper 101.
The utility model discloses a theory of operation:
in a normal spraying construction state, the backflow switch device 3 is in an off state; when the shower nozzle 80 of this machine is closed to the short duration, the backward flow switch device 3 will be able to switch into the outer state of leading to, and the heat can be taken away fast to the mixed coating 200 of crowded material passageway 11 of flowing through this moment in a large number to play the cooling action to pump head body 1, avoid the mixed coating 200 in crowded material passageway 11 of pump head body 1 to form little caking because of the dehydration, and then avoid crowded material passageway 11 to appear blockking up, thereby realize protecting pump head body 1, improve the utility model discloses a stability to reduce the maintenance cost.
After the spraying operation is completed, the spray head 80 is closed and the motor 30 is operated in reverse direction, and the end of the return material conveying pipe 90 on the material conveying opening of the hopper 101 is placed in the mixed paint 200 in the hopper 101, or the end of the return material conveying pipe 90 on the material conveying opening of the hopper 101 is placed in an external container storing clean water; when the backflow conveying pipe 90 is placed on the mixed paint 200, the mixed paint 200 in the hopper 101 sequentially passes through the cooling backflow pipe 23, the cavity 21 and the material extruding channel 11 through the backflow conveying pipe 90 and then returns to the hopper 101; the mixed paint 200, which is normally in the top position, is relatively dilute, and the relatively dilute mixed paint 200 can bring the relatively viscous mixed paint 200 in the extrusion channel 11 back into the hopper 101, thereby cleaning the pump head body 1 and preventing the mixed paint 200 from solidifying in the extrusion channel 11 and causing blockage. When the return feed pipe 90 is placed in an external container storing clean water, the pump head body 1 can also be cleaned.
In order to make the structure more reasonable, as shown in fig. 3 to 6, the device further comprises a sensor 100 for controlling whether the backflow switching device 3 is operated; the sensing end of the sensor 100 is mounted on the air pipe 60. The sensor 100 is a pressure sensor or an airflow sensor. In this embodiment, the main control module 300 is included, the sensor 100 is electrically connected to the main control module 300, and the main control module 300 is electrically connected to the cylinder 31 of the backflow switching device 3; where the sensor 100 is an airflow sensor: when the nozzle 80 is in an open state, the sensor 100 detects that the compressed air in the air pipe 60 flows and sends a signal to the main control module 300, and the main control module 300 controls the cylinder 31 to drive the baffle 32 to enter the inner cavity of the cooling return pipe 23 and close the pipeline of the cooling return pipe 23; when the nozzle 80 is in the closed state, the compressed air in the air pipe 60 stops flowing, the sensor 100 stops sending a signal to the main control module 300, and the main control module 300 controls the cylinder 31 to drive the baffle 32 to leave the inner cavity of the cooling return pipe 23, so that the pipeline of the cooling return pipe 23 circulates. Where the sensor 100 is a pressure sensor: when the nozzle 80 is in an open state, the sensor 100 transmits the detected air pressure in the air pipe 60 to the main control module 300, the air pipe 60 is communicated with the external environment at the moment, the air pressure in the air pipe 60 is low, and the main control module 300 controls the backflow switch device 3 to turn off the cooling backflow pipe 23; when the nozzle 80 is in a closed state, the sensor 100 transmits the detected air pressure in the air pipe 60 to the main control module 300, and the air pipe 60 is in a closed state at the moment, so that the air pressure in the air pipe 60 is higher, and the main control module 300 controls the backflow switch device 3 to enable the cooling backflow pipe 23 to be communicated with the outside; the design enables the sprayer with the pump head cooling function to automatically control the opening or closing of the backflow switch device 3 according to the state of the spray head 80, and operation is more convenient.
In order to make the structure more reasonable, the spray head 80 shown in fig. 3 and 4 comprises a gas spraying device 802 and a spray head pipe 801; the input port of the nozzle pipe 801 is communicated with the spraying material conveying pipe 70; the air injection device 802 comprises an air valve switch 8021 and an air injection pipe 8022, wherein the air inlet end of the air valve switch 8021 is communicated with the air delivery pipe 60, the air outlet end of the air valve switch 8021 is communicated with one end of the air injection pipe 8022, and the other end of the air injection pipe 8022 extends into the interior of the nozzle pipe 801 and is arranged towards the output port of the nozzle pipe 801. When the air valve switch 8021 is in an open state, air compressed by the air pump 50 in the air pipe 60 enters the air injection pipe 8022 through the air valve switch 8021 and is ejected from one end of the air injection pipe 8022, and since the end of the air injection pipe 8022 is located inside the nozzle pipe 801 and is arranged facing the output port of the nozzle pipe 801, the mixed coating 200 in the nozzle pipe 801 is driven by the air ejected from the air injection pipe 8022 to move towards the output port of the nozzle pipe 801 and enter the external environment, so that the mixed coating 200 is sprayed on the wall to be treated.
To make the configuration more reasonable, the axis of the gas lance 8022 is perpendicular to the plane of the outlet opening of the showerhead tube 801, as shown in FIGS. 3 and 4. This arrangement allows the compressed air from the air nozzle 8022 to better carry the mixed coating 200 within the nozzle 801 out of the nozzle 801.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. The pump head structure capable of realizing cooling comprises a pump head body, wherein an extruding channel is formed in the pump head body, one channel opening of the extruding channel is a feeding hole, and the other channel opening of the extruding channel is a discharging hole; the method is characterized in that: the device also comprises a connector and a backflow switch device; the connecting head is fixed on the pump head body, a cavity is formed by connecting the connecting head and the pump head body, the cavity is communicated with a discharge hole of the extruding channel of the pump head body, a discharge channel is formed on the connecting head, and a channel opening of the discharge channel is communicated with the cavity; a cooling reflux pipe is also formed on the connecting head, and one end of the cooling reflux pipe is communicated with the cavity; the backflow switch device is arranged on the cooling backflow pipe, and the backflow switch device is a switch device for controlling the cooling backflow pipe to be switched on and off.
2. A coolable pump head construction as claimed in claim 1, wherein: the backflow switch device comprises a cylinder, a baffle and a mounting frame; a switch gap is formed on the cooling return pipe, the mounting frame is mounted outside the cooling return pipe, the air cylinder is mounted on the mounting frame, and the movable end of the air cylinder is connected with the blocking piece; the baffle piece extends into the switch gap, and the cooling return pipe is in an externally-communicated state or a turn-off state under the driving of the movable end of the cylinder by the baffle piece.
3. A coolable pump head construction as claimed in claim 2, wherein: the baffle plate cuts off the cooling reflux pipe along the transverse direction of the cooling reflux pipe.
4. A coolable pump head construction as claimed in claim 1, wherein: the axis of the discharging channel of the connector is collinear with the axis of the extruding channel of the pump head body.
5. A coolable pump head construction as claimed in claim 1, wherein: the cavity of the connector is of a cone structure, the height of the cone structure is collinear with the axis of the extruding channel, and a channel port of the discharging channel is communicated with the cone tip of the cavity.
6. The spraying machine with pump head cooling function comprises a pump head, a hopper and a gas pipe; the method is characterized in that: the pump head is the pump head structure capable of realizing cooling of claim 1; the device also comprises a backflow conveying pipe, one end of the backflow conveying pipe is communicated with the cooling backflow pipe of the pump head, and the other end of the backflow conveying pipe is positioned on the material conveying opening of the hopper.
7. A spray applicator with pump head cooling as set forth in claim 6, wherein: the device also comprises a sensor used for controlling whether the backflow switch device acts or not; the sensing end of the sensor is arranged on the gas pipe.
8. A spray applicator with pump head cooling as set forth in claim 7, wherein: the sensor is a pressure sensor or an airflow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121691433.8U CN214132300U (en) | 2021-07-24 | 2021-07-24 | Can realize refrigerated pump head structure and have pump head refrigerated flush coater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121691433.8U CN214132300U (en) | 2021-07-24 | 2021-07-24 | Can realize refrigerated pump head structure and have pump head refrigerated flush coater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214132300U true CN214132300U (en) | 2021-09-07 |
Family
ID=77554118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121691433.8U Expired - Fee Related CN214132300U (en) | 2021-07-24 | 2021-07-24 | Can realize refrigerated pump head structure and have pump head refrigerated flush coater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214132300U (en) |
-
2021
- 2021-07-24 CN CN202121691433.8U patent/CN214132300U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20210907 |