Piezoelectric dispensing valve with quick release structure

Abstract

The piezoelectric dispensing valve comprises a valve body and a flow channel, a quick release assembly is arranged on the lower portion of the valve body and comprises a base and a turning cover, the turning cover is rotatably connected to the lower portion of a second side plate through a rotating shaft, a first through hole is formed in the middle of the turning cover, and a second through hole is formed in the middle of the turning cover. A first through hole is formed in the upper portion of the base, a first screw hole corresponding to the first through hole is formed in the upper portion of the base, a connecting part transversely extending out is arranged on the right side of the flow channel, a through groove matched with the connecting part is formed in the middle of the base, a protrusion is arranged on the lower surface of the turning cover, and during assembly, the connecting part is embedded into the through groove, the protrusion abuts against the connecting part, and the turning cover is fixed to the base. And the locking screw rod penetrates through the first through hole and is screwed in the first screw hole. The through groove is formed in the quick release base and can be matched with the connecting part extending out of the flow channel, and quick disassembly and assembly of the flow channel can be achieved; the turning cover with the protrusion, the locking screw rod and the first screw hole are arranged on the quick release seat, so that the flow channel can be reliably fixed on the valve body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a point gum valve technical field, especially in a kind of piezoelectric point gum valve with quick release structure. BACKGROUND

[0002] Point gum system is a kind of process equipment widely applied in product production field, and most applications are to spray viscous fluid on each circuit board component by non-contacting, protect each circuit board, chip, button, camera etc. from dust, moisture, corrosive natural environment by the action of solidified UV glue, epoxy resin, anaerobic glue etc.;By the action of solidified hot melt structural glue, shell, screen and waterproof sealing effect are achieved;By the action of solidified conductive silver glue, the conductive performance of circuit board is strengthened;By the action of solidified heat-conducting grease, the heat-conducting performance of circuit board is strengthened.

[0003] Piezoelectric injection valve (piezoelectric point gum valve) is usually suitable for small injection amount of viscous fluid, and the viscosity of glue is adapted from tens of centi-pascal to several ten thousand centi-pascal;For example, it is suitable for ultraviolet light UV solidified glue, epoxy resin glue, anaerobic glue, conductive silver glue, heat-conducting grease, solder paste, flux, silicone, hot melt structural glue of each electronic industry circuit board.

[0004] But piezoelectric point gum valve of prior art has the following defects: piezoelectric point gum valve usually includes valve body and flow channel, piezoelectric point gum valve flow channel installation on the market usually has two schemes, one is directly fixed on valve body by nozzle assembly, this installation scheme is not firm enough, flow channel is easy to shake, affect the precision when dispensing, the other is that flow channel is directly fixed on valve body by bolt, existing technical scheme usually needs special tool to disassemble and assemble flow channel, leading to inconvenient use. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of piezoelectric point gum valve with quick release structure, which can be quickly disassembled and assembled by hand screwing bolt without using tool, to solve the problems in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a piezoelectric glue dispensing valve with quick release structure, including valve body and flow channel, the flow channel is equipped with the connecting portion of transversely extending, the valve body is equipped with quick release assembly, the quick release assembly includes base and locking screw, the locking screw is equipped with operating handle, the base includes bottom plate and oppositely arranged first side plate and second side plate on both sides of bottom plate, the first side plate and second side plate form the through slot of adapting with connecting portion between, the base is equipped with the flip of being used for fixing connecting portion in the through slot, the flip is rotatably connected in the second side plate through pivot, the middle part of flip is equipped with first through hole, the first side plate is equipped with the first screw hole corresponding with first through hole, when assembling, the connecting portion is embedded in the through slot, the locking screw is screwed in the first screw hole through first through hole.

[0008] Preferably, the lower surface of the flip is provided with a protrusion, the extension direction of the protrusion is consistent with the extension direction of the connecting portion, and the protrusion is in contact with the connecting portion during assembly.

[0009] Preferably, the end of the locking screw close to the operating handle is provided with a connecting column, the diameter of the first through hole is larger than the diameter of the locking screw, the diameter of the connecting column is larger than the diameter of the first through hole, and a contact step is formed between the connecting column and the locking screw.

[0010] Preferably, the top of the operating handle is provided with a blind hole.

[0011] Preferably, the bottom of the valve body is provided with a second screw hole, the first side plate is provided with a second through hole corresponding to the second screw hole, and a bolt is screwed into the second screw hole through the second through hole during assembly.

[0012] Preferably, the first side plate is provided with a first displacement slot, and the first screw hole is arranged in the first displacement slot.

[0013] Preferably, the second side plate is provided with a second displacement slot opposite to the second through hole.

[0014] Preferably, the front side of the flip is provided with a connecting hook portion extending outward, the connecting hook portion extends into the second displacement slot and is rotatably connected to the second side plate through the pivot.

[0015] Preferably, the second displacement slot is in communication with the through slot.

[0016] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically, by setting the through slot on the quick release seat, the connecting portion extending from the flow channel can be matched with each other, and the flow channel can be quickly disassembled; by setting the locking screw with the operating handle, the valve can be directly disassembled by hand without the aid of other tools, and the disassembly efficiency is improved.

[0017] In order to more clearly set forth the structural features, technical means and the specific purposes and functions reached by the utility model, the utility model will be further described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the structural schematic diagram of the embodiment of the utility model;

[0019] Figure 2 is the overall structure exploded schematic diagram of the embodiment of the utility model;

[0020] Figure 3 is the flow channel and quick release structure partial exploded schematic diagram of the embodiment of the utility model;

[0021] Figure 4 is the quick release structure partial exploded schematic diagram of the embodiment of the utility model.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 10, valve body;11, second screw hole;20, flow channel;21, connecting part;30, quick release assembly;31, base;311, bottom plate;312, first side plate;313, second side plate;314, first screw hole;315, second through hole;316, first accommodating groove;32, locking screw, 321, blind hole;322, connecting column;323, operating handle;324, abutting step;33, flip cover;331, connecting hook part;332, first through hole;333, protrusion;34, through slot;35, rotating shaft;36, second accommodating groove. DETAILED DESCRIPTION

[0024] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as the limitation to the utility model.

[0025] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrally connected;Can be mechanical connection, or electrical connection;Can be directly connected, or indirectly connected through intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] It should be noted that the valve body, flow channel and working mode thereof in the utility model all adopt the existing mature technical means in the field, which will not be described herein.

[0027] A piezoelectric glue dispensing valve with quick release structure, comprising a valve body 10 and a flow channel 20, the flow channel 20 is provided with a connecting part 21 extending transversely, the valve body 10 is provided with a quick release assembly 30, the quick release assembly 30 comprises a base 31 and a locking screw 32, the locking screw 32 is provided with an operating handle 323, the base 31 comprises a bottom plate 311 and a first side plate 312 and a second side plate 313 oppositely arranged on both sides of the bottom plate 311, a through slot 34 adapted to the connecting part 21 is formed between the first side plate 312 and the second side plate 313, the base 31 is provided with a flip cover 33 for fixing the connecting part 21 in the through slot 34, the flip cover 33 is rotatably connected to the second side plate 313 through a rotating shaft 35, the middle part of the flip cover 33 is provided with a first through hole 332, the first side plate 312 is provided with a first screw hole 314 corresponding to the first through hole 332, the first side plate 312 is provided with a first accommodating slot 316, and the first screw hole 314 is arranged in the first accommodating slot 316, during assembly, the connecting part 21 is embedded in the through slot 34, and the locking screw 32 is screwed into the first screw hole 314 through the first through hole 332. By arranging the through slot 34 on the quick release seat, the connecting part 21 extending from the flow channel 20 can be matched with each other, and the flow channel 20 can be quickly disassembled; by arranging the locking screw 32 with the operating handle 323, the valve body can be directly disassembled by hand without the aid of other tools, thereby improving the disassembly efficiency.

[0028] Specifically, the lower surface of the flip cover 33 is provided with a protrusion 333, the extension direction of the protrusion 333 is consistent with the extension direction of the connecting part 21, and during assembly, the protrusion 333 is in contact with the connecting part 21.

[0029] Specifically, one end of the locking screw 32 close to the operating handle 323 is provided with a connecting column 322, the diameter of the first through hole 332 is greater than the diameter of the locking screw 32, the diameter of the connecting column 322 is greater than the diameter of the first through hole 332, and a contact step 324 is formed between the connecting column 322 and the locking screw 32. During assembly, the contact step 324 is in contact with the flip cover 33, and it should be noted that the locking screw 32 can also be in contact with the flip cover 33 through a gasket.

[0030] More specifically, the top of the operating handle 323 is provided with a blind hole 321, the shape of the blind hole 321 is adapted to the shape of a common screwdriver head, and during assembly, the operating handle 323 can be locked with the flip cover 33 by hand, and when the hand is not strong enough to disassemble, the blind hole 321 can be used to disassemble with a screwdriver.

[0031] Specifically, the second side plate 313 is provided with a second accommodating groove 36 opposite to the second through hole 315, the second accommodating groove 36 is communicated with the through groove 34, the front side of the flip cover 33 is provided with a connecting hook part 331 extending outward, the second side plate 313 is provided with a mounting hole for mounting the rotating shaft 35, and the connecting hook part 331 extends into the second accommodating groove 36 and is rotatably connected to the second side plate 313 through the rotating shaft 35.

[0032] Specifically, the bottom of the valve body 10 is provided with a second screw hole 11, the first side plate 312 is provided with a second through hole 315 corresponding to the second screw hole 11, during assembly, a bolt is screwed into the second screw hole 11 through the second through hole 315, and more specifically, during assembly, a tool can lock the bolt by extending into the through groove 34 from the second accommodating groove 36.

[0033] In summary, the through groove arranged on the quick release seat can be matched with the connecting part extended from the flow channel, the flow channel can be quickly disassembled and assembled, the locking screw rod provided with the operating handle can be directly disassembled and assembled by hand, other tools are not needed, and the disassembly and assembly efficiency is improved.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model, so any modification, equivalent replacement, improvement and the like made according to the technical actuality of the utility model to the above embodiment still belong to the range of the technical scheme of the utility model.

Claims

1. A piezoelectric glue dispensing valve with quick release structure, comprising a valve body and a flow channel, characterized in that, The flow channel is provided with a connecting part extending laterally, the valve body is provided with a quick release assembly, the quick release assembly comprises a base and a locking screw, the locking screw is provided with an operating handle, the base comprises a bottom plate and first and second side plates oppositely arranged on two sides of the bottom plate, a through slot adapted to the connecting part is formed between the first and second side plates, the base is provided with a flip cover for fixing the connecting part in the through slot, the flip cover is rotatably connected to the second side plate through a rotating shaft, a first through hole is arranged in the middle of the flip cover, the first side plate is provided with a first screw hole corresponding to the first through hole, during assembly, the connecting part is embedded in the through slot, and the locking screw is screwed into the first screw hole through the first through hole.

2. The piezoelectric dispensing valve with quick release structure according to claim 1, characterized in that, The lower surface of the flip cover is provided with a protrusion, the extension direction of the protrusion is consistent with the extension direction of the connecting part, and during assembly, the protrusion is in abutment with the connecting part.

3. The piezoelectric dispensing valve with quick release structure according to claim 1, characterized in that, The end of the locking screw close to the operating handle is provided with a connecting column, the diameter of the first through hole is greater than the diameter of the locking screw, the diameter of the connecting column is greater than the diameter of the first through hole, and an abutment step is formed between the connecting column and the locking screw.

4. The piezoelectric dispensing valve with quick release structure according to claim 1 or 3, characterized in that, The top of the operating handle is provided with a blind hole.

5. The piezoelectric dispensing valve with quick release structure according to claim 1, wherein, The bottom of the valve body is provided with a second screw hole, the first side plate is provided with a second through hole corresponding to the second screw hole, during assembly, a bolt is screwed into the second screw hole through the second through hole.

6. The piezoelectric dispensing valve with quick release structure according to claim 1, characterized in that, The first side plate is provided with a first accommodation slot, and the first screw hole is arranged in the first accommodation slot.

7. The piezoelectric dispensing valve with quick release structure according to claim 5, characterized in that, The second side plate is provided with a second accommodation slot opposite to the second through hole.

8. The piezoelectric dispensing valve with quick release structure according to claim 7, characterized in that, The front side of the flip cover is provided with a connecting hook part extending outward, the connecting hook part extends into the second accommodation slot and is rotatably connected to the second side plate through a rotating shaft.

9. The piezoelectric dispensing valve with quick release structure according to claim 7 or 8, characterized in that, The second accommodation slot is in communication with the through slot.

Images