JP2014028345A - Trigger type liquid sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trigger type liquid sprayer the whole of which can be formed to be compact, especially in length, without reducing functions, by adopting a specially configured structure of a discharge valve.SOLUTION: The trigger type liquid sprayer sucks up liquid in a container body 90 into a cylinder tube 30 by operation of trigger F, and jets the liquid from a jetting port at a tip of a nozzle D. A division tube 32 for dividing a base end part in the cylinder tube 30 into the inside and the outside is provided so as to protrude, at a center part in the cylinder tube 30. A vertical flow passage pa is divided into a lower vertical flow passage pa1 and an upper vertical flow passage pa2, the lower vertical flow passage pa1 and the inside of the division tube 32 are made to communicate with each other, the inside of the cylinder tube 30 outside of the division tube 32 and the inside of the upper vertical flow passage pa2 are made to communicate with each other, a discharge valve V1 is formed in the division tube 32, and a sucking valve V2 is formed in the upper vertical flow passage pa2.

Description

  The present invention relates to a trigger type liquid ejector.

  A trigger-type liquid ejection is known in which a liquid in a mounted container is pumped by the action of a built-in pump mechanism by a trigger operation, and ejected in a liquid, mist, or the like from a nozzle at the tip. (For example, refer to Patent Document 1).

  The trigger type liquid ejector includes a longitudinal channel communicating with a mounted container body through a pipe, and an injection communicating with the inside of a nozzle fitted to the tip, communicating with an upper portion of the longitudinal channel and extending forward. A main body having a flow path and a cylinder cylinder projecting forward in communication with the inside of the vertical flow path below the injection flow path, and injecting a trigger for operating a plunger sliding in the cylinder cylinder It is suspended from the main body at the position in front of the flow path so as to be swingable.

  In addition, there is one communication path between the vertical flow path and the cylinder cylinder, and a discharge valve is arranged in the vertical flow path upstream of the communication path, and in the vertical flow path downstream of the communication path. The suction valve is arranged in the. In addition, the discharge valve has a configuration in which a ball-shaped discharge valve body is mounted on a valve seat protruding in the vertical flow path, and the suction valve is supported by an elastic plate that is suspended from the upper end of the vertical flow path. The suction valve plate is in pressure contact with the suction valve seat in the longitudinal flow path, and a rod-shaped valve restraint that regulates the vertical movement of the suction valve body is integrally suspended below the suction valve plate. Has been established.

Japanese Patent No. 3789904

  By adopting a discharge valve structure with a special configuration, the present invention can be formed compactly as a whole, can be formed in a particularly short length without any component insertion errors, and compared with conventional products. We propose a trigger-type liquid ejector that can smoothly pump up and eject liquid without causing functional degradation. In addition, a trigger type liquid ejector is proposed in which the main body is formed of a plurality of components and can be easily formed by assembling them, and the discharge valve can be automatically formed by these assembling operations. Furthermore, the trigger type liquid ejector which can perform the fitting of the cylinder member which comprises a main body easily and reliably is proposed. In addition, for example, during the operation of grasping the mounting cap, the upper surface of the grasped hand can be brought into contact with and locked, and a stable ejection operation is possible. The present invention proposes a trigger type liquid ejector that can reduce the material constituting the cover as much as possible without requiring a large rear projection.

  The first means is configured as follows. That is, the longitudinal flow path pa communicating with the inside of the container body 90 mounted by the mounting cap A via the pipe 52, the cylinder cylinder 30 communicating with the vertical flow path pa and projecting forward, and the cylinder cylinder 30 at an upper position. A main body B having an injection flow path pb that communicates with the longitudinal flow path pa and extends forward, a nozzle D that communicates with the injection flow path pb and is attached to the tip of the main body B, and a cylinder cylinder. The plunger E is slidably fitted in the interior of the cylinder 30, and is suspended from the body B in front of the cylinder cylinder 30 so as to be able to swing back and forth in a forward-biased state. And a cover G that covers the upper surface, both side surfaces, and rear surface of the main body B and is fitted to the main body B, and sucks the liquid in the container body 90 into the cylinder tube 30 by operating the trigger F. , Birds ejected from the nozzle D tip -Type liquid ejector, in which a partition cylinder 32 that divides the inner end of the cylinder cylinder 30 inwardly and outwardly protrudes from the center of the cylinder cylinder 30, and the longitudinal flow path pa is defined as the lower longitudinal flow path pa1 and the upper longitudinal flow It is partitioned into a path pa2, and the lower vertical flow path pa1 and the inside of the partition cylinder 32 are communicated, and the inside of the cylinder cylinder 30 outside the partition cylinder 32 and the inside of the upper vertical flow path pa2 are communicated. A discharge valve V1 was formed, and a suction valve V2 was formed in the upper vertical flow path pa2.

  The second means is configured as follows. That is, in the first means, the main body B is constituted by the main body B1, the cylinder member B2 fitted to the main body B1, and the intake B3. A fitting cylinder A fitted with a fitting cap A to be fitted to the periphery is provided, and a connecting cylinder part 15 having a top cylinder shape with a lower end opening is provided, and a top cylinder 17 having a lower end opened at the top part of the connection cylinder part 15. The vertical cylinder 17 is provided with an injection cylinder 18 which is open at the upper end of the vertical cylinder 17 and extends forward, and a cylinder fitting cylinder 19 which is open at the front end and closed at the rear end from the vertical cylinder 17 below the injection cylinder 18. The discharge valve seat 20 protrudes from the center of the cylinder fitting cylinder 19, and the cylinder member B2 has a flange-like shape from the rear end edge of the cylinder cylinder 30 fitted into the cylinder fitting cylinder 19. Extending the back wall 31, the inner end of the cylinder cylinder 30 from the inner peripheral edge of the back wall 31 A partition cylinder 32 is provided in a protruding manner, and a discharge valve body 34 integrally protruding from the partition cylinder 32 via an elastic portion 33 is pressed against the discharge valve seat 20, and the intake B 3 is fitted in the vertical cylinder 17. A partition wall 46 that divides the interior vertically is provided, and the lower part of the partition wall 46 is defined as a lower longitudinal flow path pa1, and the upper part of the partition wall 46 is defined as an upper longitudinal flow path pa2, and a cylinder member B2 for the main body B1 When the intake B3 is fitted, an inflow path that communicates the inside of the lower vertical flow path pa1 and the discharge valve seat 20, and an outflow path that communicates the interior of the cylinder cylinder 30 on the outer periphery of the partition cylinder 32 and the inside of the upper vertical flow path pa2. Is formed.

  The third means was configured as follows. That is, in the second means, the lower through hole 47 provided in the cylinder wall 45 of the intake B3 and the first communication hole 21 provided in the vertical cylinder 17 are connected to the cylinder wall 45 and the vertical cylinder 17 of the intake B3. An upper through-hole 48 provided in the cylinder wall 45 of the intake B3, communicating with the inside of the intake B3 and the inside of the partition cylinder 32 through an annular lower gap 49 provided therebetween, The second communication hole 36 provided in the vertical cylinder 17 communicates with an annular upper gap 50 provided between the cylinder wall 45 of the intake B 3 and the vertical cylinder 17, so that the inside of the cylinder cylinder 30 on the outer periphery of the partition cylinder 32. And the outflow passage communicating with the inside of the intake B3 was formed.

  The fourth means is configured as follows. That is, in the second means or the third means, the positioning protrusion 35 protruding from the rear surface of the cylinder member B2 is fitted into the fitting hole 25 drilled at a predetermined position of the vertical cylinder 17. The cylinder member B2 is configured to be fitted to the main body B1.

  The fifth means is configured as follows. That is, in the first to fourth means, the cover cylinder G is provided with a support plate portion 80 that engages one end below the rear portion of the main body B and extends backward, and on the upper surface of the support plate portion 80, The lower end portion of the rear wall portion 83 that covers the rear surface of the main body B is integrally connected.

  In the present invention, a partition tube 32 that partitions the inner end of the cylinder tube 30 inwardly and outwardly protrudes from the center of the cylinder tube 30, and the vertical flow channel pa is divided into a lower vertical flow channel pa1 and an upper vertical flow channel pa2. Then, the lower vertical flow path pa1 and the partition cylinder 32 are communicated with each other, and the cylinder cylinder 30 outside the partition cylinder 32 and the upper vertical flow path pa2 are communicated to form the discharge valve V1 in the partition cylinder 32. Since the suction valve V2 is formed in the upper vertical flow path pa2, the discharge flow path V1 that has existed in the conventional vertical flow path is accommodated in the cylinder cylinder 30, so that the vertical flow path pa can be formed short. As a result, the whole can be formed compactly, there is no mistake in inserting parts, and the overall length can be particularly shortened. In addition, there is no risk of functional deterioration as compared with conventional products, and smooth liquid pumping and ejection are possible.

  The main body B is composed of a main body portion B1, a cylinder member B2 fitted to the main body portion B1, and an intake B3. The main body portion B1 rotates a mounting cap A to be fitted to the container body neck portion 91 around the circumference. A connecting cylinder part 15 having a top-end cylindrical shape with a lower end opening is provided, and a vertical cylinder 17 having a top end opened at the top of the connection cylinder part 15 is erected. An injection cylinder 18 having an open end and extending forward is provided, and a cylinder fitting cylinder 19 that is open at the front end and closed at the rear end is projected from a vertical cylinder 17 below the injection cylinder 18, and the center in the cylinder fitting cylinder 19 is provided. A discharge valve seat 20 is provided so as to protrude from the rear end edge of the cylinder tube 30 fitted in the cylinder fitting tube 19 and the cylinder member B2 extends from the rear wall 31 in the form of a flange. A partition cylinder 32 that projects the inner end of the cylinder cylinder 30 inward and outward from the inner periphery of the cylinder 31 protrudes from A discharge valve body 34 that protrudes integrally from the image cylinder 32 via an elastic portion 33 is pressed against the discharge valve seat 20, and the intake B 3 is fitted in the vertical cylinder 17 and divides the inside vertically. A partition wall 46 is provided, and the lower part of the partition wall 46 is defined as a lower vertical flow path pa1 and the upper part of the partition wall 46 is defined as an upper vertical flow path pa2, and when the cylinder member B2 and the intake B3 are fitted to the main body B1, In the case where the inflow path that connects the inside of the flow path pa1 and the discharge valve seat 20 and the outflow path that connects the inside of the cylinder cylinder 30 on the outer periphery of the partition cylinder 32 and the inside of the upper vertical flow path pa2 are formed. For example, there is an advantage that the cylinder member B2 is fitted to the main body B1 from the front and the intake B3 is fitted from below, and the discharge valve V1 is also assembled. Operation There is an advantage that manner can be formed. Further, the discharge valve body 34 is formed integrally with the partition cylinder 32 via the elastic portion 33, and the discharge valve seat 20 can also be formed integrally with the main body portion B1, and uses a ball-like discharge valve body as a separate body. There is also an advantage that the number of members can be reduced as compared with the conventional product.

  An annular lower gap 49 provided between the cylindrical wall 45 of the intake B3 and the vertical cylinder 17 with the lower through hole 47 provided in the cylindrical wall 45 of the intake B3 and the first communication hole 21 provided in the vertical cylinder 17. The inflow path that communicates between the inside of the intake B3 and the partition cylinder 32 is formed, and the upper through hole 48 provided in the cylinder wall 45 of the intake B3 and the second communication hole 36 provided in the vertical cylinder 17 are formed. Through the annular upper gap 50 provided between the cylinder wall 45 of the intake B3 and the vertical cylinder 17, and the outflow passage communicating between the cylinder cylinder 30 on the outer periphery of the partition cylinder 32 and the intake B3. When the lower gap 49 and the upper gap 50 are formed, the drilling positions of the lower through hole 47 and the upper through hole 48 can be adjusted as close as possible. As a result, the overall height can be reduced. Further, it can be shortened.

  The positioning projection 35 projecting from the rear surface of the cylinder member B2 is fitted into the fitting hole 25 drilled at a predetermined position of the vertical cylinder 17 so that the cylinder member B2 is fitted to the main body B1. In this case, there is an advantage that the fitting position of the cylinder member B2 with respect to the main body B1 can be easily and reliably specified, and the configuration (for example, the upper ventilation hole 39 in the first embodiment) provided in the cylinder member B2 is provided. The cylinder member B2 can be easily and reliably fitted to the cylinder fitting cylinder 19 so as to be positioned at a predetermined position.

  The cover cylinder G includes a support plate portion 80 that engages one end below the rear portion of the main body B and extends rearward. The lower end portion of the rear wall portion 83 that covers the rear surface of the main body B is integrated with the upper surface of the support plate portion 80. For example, in the operation of grasping the mounting cap A, the upper surface of the grasped hand can be locked by the support plate 80 to perform a stable ejection operation. In order to obtain a special advantage, the rear portion of the cover G does not need to protrude rearward larger than the main body B, and the rear wall portion 83 of the cover G can be suspended in the vicinity of the rear portion of the main body B. It is only necessary to project the necessary width, and there is an advantage that the material constituting the cover G can be reduced as much as possible.

It is a longitudinal cross-sectional view of a trigger type liquid ejector. (First embodiment)

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a first embodiment of the trigger type liquid ejector according to the present invention. In the figure, 1 shows the trigger type liquid ejector. For convenience of explanation, the left side of FIG. 1 will be described as a front part, the right side as a rear part, the front side as a right part, and the back side as a left part.

  The trigger type liquid ejector 1 includes a mounting cap A, a main body B, a connecting member C, a nozzle D, a plunger E, a trigger F, and a cover G.

  The mounting cap A is screwed to the outer periphery of the mouth / neck portion 91 of the container body 90 to mount and fix the trigger type liquid ejector 1 to the container body 90, and is connected to the lower portion of the main body B so as to be rotatable. .

  The main body B has a longitudinal flow path pa that communicates with the inside of the mounted container body 90 via a pipe 52, a cylinder cylinder 30 that communicates with the longitudinal flow path pa and protrudes forward, and a position above the cylinder cylinder 30. An injection flow path pb that communicates with the vertical flow path pa and extends forward is provided.

  In the first embodiment, the main body B further includes a main body B1, an intake B3, and a cylinder member B2.

  The main body portion B1 includes a connecting cylinder portion 15 having a lower end opening whose upper end is closed, and a vertical cylinder 17 having a base opening at a rear eccentric position of the top plate 16 of the connecting cylinder portion 15 is raised upward. An injection cylinder 18 having a base end opened at the upper end portion of the vertical cylinder 17 extends forward. Further, a cylinder fitting cylinder 19 having a front face opened from the front face of the vertical cylinder 17 on the connecting cylinder portion 15 and closed at the rear face is protruded, and a cylindrical discharge valve seat is provided at the center of the cylinder fitting cylinder 19. 20 is projected. The inside of the vertical cylinder 17 and the inside of the discharge valve seat 20 are communicated with each other through a first communication hole 21 formed in the center of the discharge valve seat 20. Further, the flange-like top wall 10 at the upper end of the mounting cap A is brought into contact with the upper surface of the flange 22 projecting from the lower outer periphery of the connecting cylinder portion 15, and the mounting cap A is rotated with respect to the main body B1 (main body B). Wearing is possible.

  The cylinder member B <b> 2 extends from the rear end edge of the outer cylinder cylinder 30 fitted in the cylinder fitting cylinder 19 to a flange-like rear wall 31, and forwards from the inner peripheral edge of the inner wall 31 to the cylinder cylinder 30. A partition cylinder 32 that projects the inner base end portion into the inside and the outside protrudes. Further, a hemispherical discharge valve body 34 integrally extending from the front portion of the partition cylinder 32 to the rear is integrally extended to the front end of the elastic portion 33, and the front end portion of the discharge valve seat 20 is provided. The discharge valve V1 is formed by pressure-contacting and closing. Further, the positioning protrusion 35 protruding from the upper rear surface of the back wall 31 is fitted into the fitting hole 25 of the vertical cylinder 17, and the cylinder protrusion 30 inside the vertical cylinder 17 and the outer side of the partition cylinder 32 is inside the positioning protrusion 35. The second communication hole 36 communicates with the inside. Further, an annular gap 37 is provided between the cylinder fitting cylinder 19 and the cylinder cylinder 30, and a lower ventilation hole 38 drilled in the top of the connecting cylinder part 15 through the annular gap 37, The upper vent hole 39 formed in the upper part of the cylinder cylinder 30 is communicated, and when the plunger E is pushed in, the outside and the inside of the container body 90 are communicated so that the outside air is introduced into the negatively pressurized container body 90. doing.

  The intake B3 has a cylindrical shape in which the upper end is located in the upper part in the vertical cylinder 17 and the lower end is located in the lower end part in the connecting cylinder part 15 and is fitted in the vertical cylinder 17, and is divided into upper and lower predetermined positions on the cylinder wall 45. The vertical partition pa defined in the cylindrical wall 45 is defined as a lower vertical flow channel pa1 below the partition wall 46 and an upper vertical flow channel pa2 above the partition wall 46. . Further, a plurality of lower through holes 47 in the circumferential direction are formed immediately below the partition wall 46, and a plurality of upper through holes 48 in the circumferential direction are formed immediately above the partition wall 46. An annular lower gap 49 is provided between the cylindrical wall 45 around the lower through hole 47 and the vertical cylinder 17, and an annular upper gap 50 is provided between the cylindrical wall 45 around the upper through hole 48 and the vertical cylinder 17. Forming. An inflow passage is formed from the lower longitudinal flow path pa1 to the discharge valve seat 20 through the lower through hole 47, the lower gap 49, and the first communication hole 21, and the second communication hole is formed from the cylinder cylinder 30. 36, an outflow passage communicating with the upper longitudinal flow path pa2 through the upper gap 50 and the upper through hole 48 is formed. Therefore, it is configured so as to communicate from the lower vertical flow path pa1 into the cylinder cylinder 30 via the inflow path and from the cylinder cylinder 30 to the upper vertical flow path pa2 via the outflow path. The upper vertical flow path pa2 communicates with the injection flow path pb defined in the injection cylinder 18. Also, a plurality of circumferentially engaging locking ribs 51 are provided below the lower through-hole 47, and a pipe 52 having an upper end locked to the locking rib 51 and fitted to the lower cylindrical wall 45 is fitted. , Depending on the lower part of the container body 90.

  Further, a suction valve V2 is provided at a position directly above the upper through hole 48 in the intake B3. The suction valve V2 is composed of a suction valve seat 53 in the form of an upward step formed at a position above the upper through hole 48 in the intake cylinder wall 45, and a suction valve member 54. The suction valve member 54 Is fitted in the upper end of the intake cylinder wall 45 and has a mounting base part 54a provided with a through-hole through which liquid can be circulated, and an 8-shaped elasticity in front view, which is continuously provided below the mounting base part 54a. It comprises a plate 54b and a suction valve body 54c connected to the lower end of the elastic plate 54b and having a peripheral edge pressed onto the suction valve seat 53, and is maintained in a normally closed state. The mounting base portion 54a of the suction valve body 54c is abutted and locked by a locking rib 23 protruding from the upper end of the vertical cylinder 17.

  The connecting member C is fitted to the tip of the injection cylinder 18 by fitting the mounting cylinder 60 to the outer periphery of the tip of the injection cylinder 18, and connects the nozzle D to the tip of the injection cylinder 18 via the connection member C. ing. A substrate 61 that covers the tip of the injection cylinder 18 is provided at the tip of the mounting cylinder 60, and the inside of the injection flow path pb communicates with the jet outlet at the tip of the nozzle D through a through hole 63 provided in the substrate 61. Further, spring plates 64 are integrally suspended from both sides of the front portion of the mounting cylinder portion 60, and upper ends of both side plates of the trigger F are pivotally attached to both sides of the portion where the spring plate 64 is suspended.

  The plunger E protrudes from a rear end portion of a peripheral wall portion 71 that can be moved back and forth between the cylinder tube 30 and the partition tube 32, and is slidably fitted to the inner periphery of the cylinder tube 30. The front end of the peripheral wall portion 71 is closed with a columnar head 72, and the sliding portion 70 is mounted so that it can be pushed backward from the position where the upper air hole 39 is closed.

  The trigger F is pivotally attached to the connecting member C at the front position of the injection cylinder 18 so that the upper end of the trigger F is pivotable, and is mounted so as to be able to swing back and forth. The lower ends of the pair of spring plates 64 are pivotally attached in a state where they are always urged forward by being linked to the upper portions of both sides of the trigger F. In addition, the tip of the plunger E is linked to the upper part of the trigger F so that the plunger E can be pushed in by pulling in the trigger F, and the trigger is restored to the original state by the elastic restoring force of the spring plate 64 from the pushed state. The plunger E is configured to be pulled back to the original state.

  The cover G covers the upper surface, both side surfaces, and the rear surface of the main body B and is fitted to the main body B. The cover G includes a support plate portion 80 that engages one end with the lower end of the rear portion of the main body B and extends rearward. . In the first embodiment, integral side wall portions 82 that cover both side surfaces of the main body B are suspended from both sides of the top wall portion 81 that covers the upper surface of the main body B, and the rear edge and both side walls of the top wall portion 81 are suspended. A rear wall 83 for connecting the rear end edge of the portion 82 is extended, and the lower end portion of the rear wall portion 83 is integrally connected to the upper surface of the support plate portion 80. Further, a protrusion 84 protruding from the upper surface of the tip of the support plate 80 is engaged with the protrusion 26 protruding from the lower surface of the mounting plate 24 protruding from the lower rear portion of the main body B1.

  The trigger type liquid ejector 1 configured as described above pushes the plunger E from the state shown in FIG. 1 to push the plunger E, so that the liquid in the cylinder cylinder 30 passes from the above outflow path into the upper vertical flow path pa2. The suction valve V2 is opened, and the nozzle D is ejected from the ejection channel pb through the nozzle D through the nozzle D.

  Next, when the pull-in of the trigger F is stopped, the trigger F is returned to the original state by the elastic restoring force of the spring plate 64, and the plunger E is pulled out, and the discharge valve V1 is opened in the cylinder cylinder 30 which has become negative pressure to open the container body. The liquid in 90 is introduced.

DESCRIPTION OF SYMBOLS 1: Trigger type liquid ejector A: Mounting cap 10 ... Flange-shaped top wall B: Main body B1: Main body part 15 ... Connection cylinder part, 16 ... Top plate, 17 ... Vertical cylinder, 18 ... Injection cylinder, 19 ... Cylinder fitting cylinder 20 ... discharge valve seat, 21 ... first communication hole, 22 ... flange, 23 ... locking rib,
24 ... Mounting plate, 25 ... Fitting hole, 26 ... Protrusion B2: Cylinder member 30 ... Cylinder cylinder, 31 ... Back wall, 32 ... Partition cylinder, 33 ... Elastic part, 34 ... Discharge valve body,
35 ... positioning protrusion, 36 ... second communication hole, 37 ... annular gap, 38 ... lower ventilation hole,
39 ... Upper vent B3: Intake 45 ... Cylinder wall, 46 ... Bulkhead, 47 ... Lower through-hole, 48 ... Upper through-hole, 49 ... Lower gap,
50: upper gap, 51: locking rib, 52 ... pipe, 53 ... suction valve seat, 54 ... suction valve member, 54a ... mounting base, 54b ... elastic plate, 54c ... suction valve body C: connecting member 60 Mounting cylinder part 61 ... Substrate 63 ... Through hole 64 ... Spring plate D: Nozzle E: Plunger 70 ... Sliding part 71 ... Peripheral wall part 72 ... Columnar head F Trigger G: Cover 80 ... Support plate part 81: Top wall portion, 82: Side wall portion, 83 ... Rear wall portion, 84 ... Projection pa: Vertical flow channel pa1: Lower vertical flow channel pa2: Upper vertical flow channel pb: Injection flow channel V1: Discharge valve V2: Suction Valve 90: container body 91 ... mouth and neck

Claims (5)

A longitudinal channel (pa) communicating with the inside of the container body (90) mounted by the mounting cap (A) via the pipe (52), and a cylinder cylinder (projecting forward) communicating with the longitudinal channel (pa) 30) and a main body (B) provided with an injection flow path (pb) that communicates with the vertical flow path (pa) and extends forward at an upper position of the cylinder cylinder (30);
A nozzle (D) attached to the tip of the main body (B) in communication with the injection flow path (pb);
A plunger (E) slidably fitted in the cylinder cylinder (30);
A trigger (F) that hangs forward and backward in a forward-biased state from the main body (B) so as to be able to swing back and forth, and that operates in conjunction with the tip of the plunger (E) to operate the plunger (E) back and forth. )When,
A cover (G) that covers the upper surface, both side surfaces, and the rear surface of the main body (B) and is fitted to the main body (B);
A trigger type liquid ejector that sucks up the liquid in the container body (90) into the cylinder tube (30) by the trigger (F) operation and ejects the liquid from the nozzle (D) tip,
A partition cylinder (32) that divides the inner base end of the cylinder cylinder (30) inwardly and outwardly projects from the center of the cylinder cylinder (30), and the vertical flow path (pa) is defined as the lower vertical flow path (pa1) and the upper vertical flow. It is divided into a flow path (pa2), the lower vertical flow path (pa1) and the inside of the division cylinder (32) are communicated, and the inside of the cylinder cylinder (30) outside the division cylinder (32) and the upper vertical flow path ( pa2) communicating with the inside, forming a discharge valve (V1) in the partition cylinder (32), and forming a suction valve (V2) in the upper longitudinal channel (pa2) . The main body (B) is composed of a main body portion (B1), a cylinder member (B2) fitted to the main body portion (B1), and an intake (B3).
The main body part (B1) includes a connecting cylinder part (15) having a top-end cylindrical shape with a lower end opening, which is rotatably attached around the mounting cap (A) to be fitted to the container body neck part 91. An injection cylinder (18) which stands upright at the top of the connecting cylinder (15) and has a top with an open bottom and opens the base at the upper end of the vertical cylinder (17). A cylinder fitting cylinder (19) that is open at the front end and closed at the rear end is projected from a vertical cylinder (17) below the injection cylinder (18), and a discharge valve seat 20 is provided in the center of the cylinder fitting cylinder (19). Projecting
The cylinder member (B2) has a flange-like back wall (31) extending from the rear end edge of the cylinder tube (30) fitted in the cylinder fitting tube (19), and the inside of the back wall (31). A discharge cylinder (34) projecting integrally from the peripheral cylinder (30) through the elastic part (33) is provided with a partition cylinder (32) that partitions the inner base end of the cylinder cylinder (30) inward and outward. ) In pressure contact with the discharge valve seat (20),
The intake B3 is fitted in the vertical cylinder (17), and is provided with a partition wall (46) that divides the interior vertically, and the partition wall (46) is provided below the lower longitudinal flow path (pa1) and the partition wall (46) is disposed above. Is defined in the upper vertical flow path (pa2),
When the cylinder member (B2) and the intake B3 are fitted to the main body (B1), an inflow path that communicates the inside of the lower longitudinal flow path (pa1) and the discharge valve seat (20), and the outer periphery of the partition cylinder (32) The trigger type liquid ejector according to claim 1, wherein an outflow passage is formed to communicate the inside of the cylinder tube (30) and the inside of the upper vertical flow path (pa2).   The lower through hole (47) provided in the cylindrical wall (45) of the intake (B3) and the first communication hole (21) provided in the vertical cylinder (17) are connected to the cylindrical wall 45 of the intake (B3) and the vertical cylinder. (17) is communicated via an annular lower gap (49) to form the inflow passage communicating between the inside of the intake (B3) and the inside of the partition cylinder (32), and the cylinder of the intake (B3) An upper through hole (48) provided in the wall 45 and a second communication hole (36) provided in the vertical cylinder (17) are connected between the cylindrical wall (45) of the intake (B3) and the vertical cylinder (17). The said outflow path which connects the inside of the cylinder pipe | tube (30) of an outer periphery of a division pipe | tube (32) and the inside of an intake (B3) is formed through the cyclic | annular upper clearance gap (50) provided in this, The said outflow path is formed. Trigger type liquid ejector.   The positioning projection (35) projecting from the rear surface of the cylinder member (B2) is fitted into a fitting hole (25) drilled at a predetermined position of the vertical cylinder (17) to be fitted to the main body (B1). The trigger type liquid ejector according to claim 2 or 3 constituted so that cylinder member (B2) may be fitted.   The cover (G) includes a support plate portion (80) that engages one end below the rear portion of the main body (B) and extends rearward, and covers the rear surface of the main body (B) on the upper surface of the support plate portion (80). The trigger type liquid ejector according to any one of claims 1 to 4, wherein the lower end portion of the rear wall portion (83) is integrally connected.