Fluid discharge system and squeezing and pushing device thereof

Abstract

A fluid discharge system and a squeezing and pushing device (100). The squeezing and pushing device (100) comprises: a first squeezing and pushing member (1), comprising a first mounting frame (11) and a first roller (12); a second squeezing and pushing member (2), comprising a second mounting frame (21) and a second roller (22); a first base (3), comprising a first base body (31), and elastic bodies (32) and connection members (33) provided in the first base body (31), wherein the first roller (12) is rotatably connected to the first base body (31), and the elastic bodies (32) abut against the side of the connection members (33) facing a hinged joint end between the first squeezing and pushing member (1) and the second squeezing and pushing member (2); a second base (4), comprising a second base body (41) and a locking structure connected to the second base body (41), wherein the second roller (22) is rotatably connected to the second base body (41), the locking structure is inserted into the connection members (33) to adjust the included angle between the two squeezing and pushing members (1 and 2), and when the locking structure is inserted into the connection members (33) to a locked position and thereby locked to the connection members (33), the two rollers (12 and 22) are held together; and a driving apparatus (5). The squeezing and pushing device has a long service life and low costs, and saves resources.

Description

Fluid discharge system and its extruder

[0001] This patent application claims priority to the following Chinese patent application:

[0002] Filing date: July 29, 2024; Application number: 2024110296405; Invention name: Fluid discharge system and its extruder;

[0003] The entire contents of the above application are incorporated herein by reference. TECHNICAL FIELD

[0004] The present invention relates to the field of logistics transportation, in particular to a fluid discharge system and its extruder. BACKGROUND

[0005] In order to store, transport and discharge viscous liquid, there are many liquid storage and transportation devices on the market. These liquid storage devices are in sealed bags, and after discharge is completed, the liquid remains in the inner liner bag, causing cost waste. In order to reduce costs and reduce resource waste, a extruder is generally used to extrude the liquid in the liquid bag during discharge.

[0006] A relatively mature extruder on the market is composed of an extruder, a gearbox, and a locking structure. The extruder is composed of two parts, and the two extruders are fixed on the gearbox and the rear base to form a left and right extruder, respectively. The left and right extruders are locked by a locking wrench, and the locking screw nut of the extruder A is threadedly connected and fastened by rotating the locking wrench. At this time, the extruder is powered to cooperate with the liquid discharge. However, during the locking process of the locking screw and the nut, the shaft center is not on the same axis, the rotating locking wrench is not smooth to use, the locking screw and the nut generate powder due to friction, which affects the service life of the extruder, increases the cost, and causes resource waste. SUMMARY

[0007] The purpose of the present invention is to provide a fluid discharge system and its extruder, which prolongs the service life of the extruder, reduces costs, and saves resources.

[0008] To solve the above technical problems, the embodiments of the present invention provide an extruder, comprising:

[0009] A first extruder, the first extruder comprising: a first mounting frame, and a first roller shaft rotatably connected with the first mounting frame;

[0010] A second extruder, one end of the second extruder being hingedly connected with one end of the first extruder; the second extruder comprising: a second mounting frame, and a second roller shaft rotatably connected with the second mounting frame;

[0011] A first base connected to the other end of the first extrusion piece, the first base comprising: a first base body, an elastic body arranged in the first base body, and an abutting piece; the first roller is rotationally connected to the first base body; the elastic body and the abutting piece abut one side of the abutting piece connected to the first extrusion piece and the second extrusion piece, and apply a pushing force to the abutting piece away from the first extrusion piece and the second extrusion piece;

[0012] A second base connected to the other end of the second extrusion piece, the second base comprising: a second base body, and a locking structure connected to the second base body; the second roller is rotationally connected to the second base body; the locking structure is detachably connected to the abutting piece; the locking structure is used for inserting into the abutting piece to adjust the included angle between the first extrusion piece and the second extrusion piece, and when the locking structure is inserted into the abutting piece to a locking position and the abutting piece is locked, the first roller and the second roller are clamped; and

[0013] A driving device for driving the first roller and the first roller relative rotation.

[0014] Compared with the prior art, when the locking structure is locked with the abutting piece, the first extrusion piece and the second extrusion piece are close to each other, the included angle between them is reduced, the axis of the abutting piece is offset with the locking structure, the abutting piece extrudes the elastic piece, the floating locking of the first base and the second base is realized, the powder generated by the friction between the abutting piece and the locking structure is prevented, the locking between the first base and the second base is facilitated, the service life is prolonged, the cost is reduced, and the resources are saved.

[0015] In an embodiment, the first base body comprises:

[0016] A seat body portion, a first clamping groove for embedding the elastic body is arranged on the seat body portion, and a recess for embedding the abutting piece is arranged on the seat body portion; a plug-in opening in communication with the recess is arranged on one side of the seat body portion facing the second base; the locking structure is used for inserting into the abutting piece through the plug-in opening; and

[0017] A first cover plate having a supporting portion inserted into the seat body portion; one end of the abutting piece away from the second base abuts against the supporting portion, and one side of the abutting piece facing the second base and one side of the abutting piece away from the elastic body both abut against the wall surface of the recess.

[0018] In an embodiment, the abutting piece is a polygonal nut; the recess is a polygonal recess matched with the shape of the abutting piece; and the first clamping groove is a semicircular clamping groove;

[0019] The locking structure comprises a screw rod penetrating through the second base body, the screw rod being rotationally connected with the second base body and being used for inserting into the counterpart and being locked with the counterpart when inserted into a locking position.

[0020] In an embodiment, the counterpart is a nut; the locking structure comprises a screw rod penetrating through the second base body, the screw rod being rotationally connected with the second base body and being used for inserting into the counterpart and being locked with the counterpart when inserted into a locking position.

[0021] In an embodiment, the screw rod, the counterpart and the elastic body are provided in multiple and same number, and are arranged in one-to-one correspondence.

[0022] The locking structure further comprises a driving member, the driving member driving each of the screw rods to insert into the corresponding counterpart and to be locked with the counterpart; the driving member further driving each of the screw rods to be separated from the corresponding counterpart.

[0023] In an embodiment, the driving member comprises:

[0024] a driving wrench; and

[0025] a transmission assembly, the transmission assembly comprising a driving shaft, a driving wheel connected with the driving shaft, a first driven wheel engaged with the driving wheel, and a plurality of second driven wheels engaged with the first driven wheel; the screw rod is connected with the second driven wheel, the number of the second driven wheel is same as the number of the screw rod, and the second driven wheel and the screw rod are arranged in one-to-one correspondence; the driving wrench drives the driving shaft to rotate, the driving shaft drives the driving wheel to rotate, the driving wheel drives the first driven wheel to rotate, the first driven wheel drives the plurality of second driven wheels to rotate, and the second driven wheel drives the corresponding screw rod to rotate.

[0026] In an embodiment, at least two of the plurality of screw rods are arranged longitudinally; at least two of the plurality of second driven wheels are arranged longitudinally.

[0027] In an embodiment, the locking structure further comprises a driving member, the driving member comprising a driving wrench and a transmission assembly connecting the driving wrench and the screw rod.

[0028] The driving wrench comprises:

[0029] a wrench base;

[0030] a handle connected with the wrench base.

[0031] A connecting member connects the wrench base and the transmission assembly, and the wrench base is connected to the connecting member and moves along the extension direction of the connecting member relative to the second base; the handle is turned to drive the wrench base to rotate, and the wrench base drives the transmission assembly to rotate; and

[0032] An elastic member abuts against the connecting member and the wrench base along the length direction of the screw rod and applies a pushing force to the wrench base towards the second base body.

[0033] In an embodiment, the handle is hingedly connected to the wrench base, and the handle is operable to be turned about the hinge to the wrench base or pulled out;

[0034] The transmission assembly comprises a drive shaft and a gear set connected to the drive shaft, and the gear set is connected to the screw rod; the wrench base is slidably connected to the drive shaft along the axis direction of the drive shaft and drives the drive shaft to rotate about the axis; the wrench base is operable to move along the axis direction of the drive shaft to be disengaged from the drive shaft;

[0035] The connecting member is a hexagonal bolt; and the elastic member is a tower spring;

[0036] The wrench base is provided with a mounting groove;

[0037] The shank of the connecting member penetrates through the groove bottom of the mounting groove and is connected to the drive shaft; and the elastic member is located in the mounting groove and abuts against the groove bottom of the mounting groove.

[0038] The embodiments of the present application also provide a fluid discharge system, which comprises a container and an inner liner bag provided with a discharge port and installed in the container, and further comprises the squeezer as claimed in any one of the above embodiments, wherein the first roller and the second roller are operable to clamp the inner liner bag therebetween and are oppositely rotatable by the driving device to apply a squeezer force to the inner liner bag. BRIEF DESCRIPTION OF DRAWINGS

[0039] One or more embodiments are illustrated by way of example in the figures that are part of this disclosure and which are illustrative, but not restrictive, of the embodiments, wherein elements having the same reference numerals designate corresponding elements and wherein the figures do not necessarily bear a proportional relationship to each other. The figures are not necessarily to scale, except where otherwise noted.

[0040] Fig. 1 is a structural schematic view of a squeezer according to an embodiment of the present application;

[0041] Figure 2 is a schematic diagram of the driving device of the extruder and the first extruding member and the second extruding member separated according to an embodiment of the present application;

[0042] Figure 3 is an exploded view of the first base and the second base according to an embodiment of the present application;

[0043] Figure 4 is a state diagram of the first extruding member and the second extruding member starting to be locked according to an embodiment of the present application;

[0044] Figure 5 is a partial enlarged view of A in Figure 4;

[0045] Figure 6 is a state diagram of the first extruding member and the second extruding member being completely locked according to an embodiment of the present application;

[0046] Figure 7 is a partial enlarged view of B in Figure 6;

[0047] Figure 8 is a schematic diagram of the seat part according to an embodiment of the present application;

[0048] Figure 9 is a schematic diagram of the wrench base in a horizontal direction according to an embodiment of the present application;

[0049] Figure 10 is a schematic diagram of the wrench base in a vertical direction according to an embodiment of the present application;

[0050] Figure 11 is a sectional view of the second base in a state that the wrench base is sleeved on the driving shaft according to an embodiment of the present application;

[0051] Figure 12 is a sectional view of the second base in a state that the wrench base is pulled off the driving shaft according to an embodiment of the present application;

[0052] Figure 13 is a state diagram of the handle pulled out of the wrench base according to an embodiment of the present application; 100, extruder; 1, first extruding member; 11, first mounting frame; 12, first roller; 2, second extruding member; 21, second mounting frame; 22, second roller; 3, first base; 31, first base body; 311, seat part; 312, first cover plate; 310, support part; 313, first clamping slot; 314, recess; 32, elastic body; 33, abutting member; 4, second base; 41, second base body; 411, second cover plate; 421, screw rod; 5, driving device; 6, driving wrench; 61, wrench base; 62, handle; 63, connecting member; 64, elastic member; 7, transmission assembly; 71, driving shaft; 72, driving wheel; 73, first driven wheel; 74, second driven wheel; 75, fixed shaft; 8, bolt. DETAILED DESCRIPTION

[0053] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the various embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the various embodiments of the present application, many technical details are presented in order to make the readers better understand the present application. However, the technical solutions claimed by the present application can be implemented even without these technical details and various changes and modifications based on the following various embodiments.

[0054] In the following description, for the purpose of illustrating various disclosed embodiments, specific details are set forth in order to provide a thorough understanding of various disclosed embodiments. However, one skilled in the relevant arts will recognize that embodiments can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail in order to avoid obscuring the description of embodiments.

[0055] Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to".

[0056] The various embodiments of the present application will be described in detail below with reference to the drawings. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present application, but merely to illustrate the essential spirit of the technical solutions of the present application.

[0057] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrase "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0058] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. It should be noted that the term "comprising" or "comprises" as used in this specification and the appended claims is not intended to exclude other additives, components, elements or steps beyond those listed in the corresponding clause.

[0059] In the following description, in order to clearly show the structure and working mode of the present application, many directional words will be used for description, but the words of "front", "back", "left", "right", "outer", "inner", "outward", "inward", "up", "down" and the like should be understood as convenient words, and should not be understood as limiting words.

[0060] Embodiments of the present application are described below with reference to the accompanying drawings.

[0061] One embodiment of the present application relates to a pusher 100. As shown in FIG. 1, FIG. 2 and FIG. 3, the pusher 100 comprises a first pusher 1, a second pusher 2, a first base 3, a second base 4 and a driving device 5. The first pusher 1 comprises a first mounting frame 11 and a first roller 12 rotatably connected with the first mounting frame 11. One end of the second pusher 2 is hingedly connected with one end of the first pusher 1. The second pusher 2 comprises a second mounting frame 21 and a second roller 22 rotatably connected with the second mounting frame 21. The first base 3 is connected with the other end of the first pusher 1. The first base 3 comprises a first base body 31, an elastic body 32 arranged in the first base body 31 and an abutting piece 33. The first roller 12 is rotatably connected with the first base body 31. The elastic body 32 and the abutting piece 33 abut against one side of the hingedly connected end of the first pusher 1 and the second pusher 2 and apply a pushing force to the abutting piece 33 towards the hingedly connected end of the first pusher 1 and the second pusher 2. The second base 4 is connected with the other end of the second pusher 2. The second base 4 comprises a second base body 41 and a locking structure connected with the second base body 41. As shown in FIG. 4, FIG. 5, FIG. 6 and FIG. 7, the second roller 22 is rotatably connected with the second base body 41. The locking structure is detachably connected with the abutting piece 33. The locking structure is used for being inserted into the abutting piece 33 to adjust the included angle between the first pusher 1 and the second pusher 2. When the locking structure is inserted into the abutting piece 33 to a locking position and locked with the abutting piece 33, the first roller 12 and the second roller 22 are clamped. The driving device 5 is used for driving the first roller 12 and the second roller 12 to relatively rotate.

[0062] As shown in FIG. 4, FIG. 5, FIG. 6 and FIG. 7, when the locking structure is locked with the abutting piece 33, the first pusher 1 and the second pusher 2 are close to each other and the included angle between them is reduced. The axis of the abutting piece 33 is offset with the locking structure. The abutting piece 33 presses the elastic member 64. The floating locking of the first base 3 and the second base 4 is realized. The powder generated by the friction between the abutting piece 33 and the locking structure is prevented. The locking between the first base 3 and the second base 4 is facilitated. The service life is prolonged. The cost is reduced. The resources are saved.

[0063] Specifically, the driving device 5 comprises a motor, which can be located above, below or beside the first roller 12 and the second roller 22. The motor shaft is fixed through the mounting hole of the first gear and the first gear. In the working process, the first gear drives the second gear to rotate. The second gear drives the first worm to rotate. The first worm drives the first worm wheel to rotate. The first worm wheel drives the second worm to rotate. The second worm drives the second worm wheel to rotate. The second worm wheel is connected with the shaft center of the first roller 12 and drives the first roller 12 to rotate, at the same time, the third gear connected with the first roller 12 also rotates and drives the fourth gear connected with the second roller 22 to rotate. Thus, the relative reverse movement of the first roller 12 and the second roller 22 is realized through the cooperation of the third gear and the fourth gear. The first base 3 and the second base 4 are locked close together, and the first roller 12 and the second roller 22 are also close together, and the first roller 12 and the second roller 22 move in opposite directions. The inner liner bag has a specific discharge port, and the bag body of the inner liner bag is clamped between the first roller 12 and the second roller 22, thereby pushing the liquid in the inner liner bag to make the liquid discharge from the discharge port.

[0064] Further, as shown in FIG. 3 and FIG. 8, the first base body 31 comprises a seat body 311 and a first cover plate 312. The seat body 311 is provided with a first clamping groove 313 for embedding the elastic body 32, and a groove 314 for embedding the abutting piece 33. The seat body 311 is also provided with an insertion opening communicated with the groove 314 on the side facing the second base 4. The locking structure is used for inserting into the abutting piece 33 through the insertion opening.

[0065] As shown in FIG. 3 and FIG. 5, the first cover plate 312 has a supporting part 310 inserted into the seat body 311, and the end of the abutting piece 33 away from the second base 4 abuts against the supporting part 310. The side of the abutting piece 33 facing the second base 4 and the side away from the elastic body 32 both abut against the wall surface of the groove 314. The abutting piece 33 is clamped by the cooperation of the supporting part 310 and the wall surface of the groove 314, preventing the abutting piece 33 from being pushed away from the locking structure by the locking structure when it is locked, that is, the two ends of the abutting piece 33 in the extension direction are positioned. In addition, the side of the abutting piece 33 away from the elastic body 32 abuts against the wall surface of the groove 314, so that the abutting piece 33 is tightly attached to the first base body 31 in the natural state. The abutting piece 33 maintains this state, and when the locking structure contacts the abutting piece 33, the shaft center can be on the same axis or close to the same axis.

[0066] Further, as shown in FIG. 5 and FIG. 7, the abutting piece 33 is a nut, and the locking structure comprises a screw rod 421 penetrating through the second base body 41. The screw rod 421 is rotatably connected with the second base body 41, and is used for inserting into the abutting piece 33 and locking with the abutting piece 33 when inserted to the locking position.

[0067] In addition, as shown in FIG. 3, FIG. 5 and FIG. 8, the abutting piece 33 is a polygon nut, the groove 314 is a polygon groove matching the shape of the abutting piece 33, and the first clamping groove 313 is a semicircular clamping groove. The position of the abutting piece 33 in the first base body 31 is defined by the shape of the clamping groove and the groove 314. Preferably, the abutting piece 33 is a hexagonal copper nut, and the groove 314 is a regular hexagon.

[0068] In addition, as shown in FIG. 3, the plurality of screw rods 421, the plurality of abutting pieces 33 and the plurality of elastic bodies 32 are arranged one-to-one in the same number. The locking structure further comprises a driving member, which drives each screw rod 421 to insert into the corresponding abutting piece 33 and lock with the abutting piece 33. The driving member also drives each screw rod 421 to disengage from the corresponding abutting piece 33.

[0069] Specifically, as shown in FIG. 3 and FIG. 11, the driving member comprises a driving wrench 6 and a transmission assembly 7. The transmission assembly 7 comprises a driving shaft 71, a driving wheel 72 connected to the driving shaft 71, a first driven wheel 73 engaged with the driving wheel 72, and a plurality of second driven wheels 74 engaged with the first driven wheel 73. The screw rod 421 is connected to the second driven wheel 74, and the number of the second driven wheels 74 is the same as the number of the screw rods 421, and they are arranged one-to-one. The driving wrench 6 drives the driving shaft 71 to rotate, the driving shaft 71 drives the driving wheel 72 to rotate, the driving wheel 72 drives the first driven wheel 73 to rotate, the first driven wheel 73 drives the plurality of second driven wheels 74 to rotate, and the second driven wheels 74 drive the corresponding screw rods 421 to rotate, so that each screw rod 421 is threadedly locked with the corresponding abutting piece 33. In this embodiment, the screw rod 421, the abutting piece 33 and the elastic body 32 are two, and the second driven wheel 74 is also two, one screw rod 421 is connected to one second driven wheel 74. Thus, by arranging a plurality of screw rods 421, the first base 3 and the second base 4 are more closely connected, and the gap between the first base 3 and the second base 4 is prevented from clamping the inner liner bag.

[0070] Further, at least two screw rods 421 in the plurality of screw rods 421 are arranged longitudinally, and at least two second driven wheels 74 in the plurality of second driven wheels 74 are arranged longitudinally.

[0071] In addition, as shown in FIG. 3 and FIG. 11, the driving wrench 6 comprises a wrench base 61, a handle 62, a connecting member 63, and an elastic member 64. The handle 62 is connected with the wrench base 61. The connecting member 63 connects the wrench base 61 and the transmission assembly 7, and the wrench base 61 is connected with the connecting member 63 and moves along the extension direction of the connecting member 63 relative to the second base 4, the handle 62 is turned to drive the wrench base 61 to rotate, and the wrench base 61 drives the transmission assembly 7 to rotate. As shown in FIG. 10 and FIG. 12, when the handle 62 and the wrench base 61 are turned together to a certain position (for example, upward), the handle 62 and the wrench base 61 will interfere with the inner liner bag and easily wear the inner liner bag. The handle 62 and the wrench base 61 can be pulled away from the second base body 41, the wrench base 61 is separated from the transmission assembly 7, and the wrench base 61 is rotated again, so that the wrench base 61 is turned with the handle to other directions, but the wrench base 61 will not drive the transmission assembly 7 to rotate when the wrench base 61 is turned. After the wrench base 61 is turned with the handle to the position, the wrench base 61 is loosened, as shown in FIG. 9 and FIG. 11, and the elastic member 64 pushes the wrench base 61 to reset to be connected with the transmission assembly 7.

[0072] Further, as shown in FIG. 11 and FIG. 12, the transmission assembly 7 comprises a driving shaft 71 and a gear set connected with the driving shaft 71, and the gear set is connected with the screw rod 421. The wrench base 61 is slidably connected with the driving shaft 71 along the axial direction of the driving shaft 71 and drives the driving shaft 71 to rotate around the axis. The wrench base 61 is operable to move along the axial direction of the driving shaft 71 to be separated from the driving shaft 71. The connecting member 63 is a hexagonal bolt, and the elastic member 64 is a tower spring, which is sleeved on the connecting member 63. The wrench base 61 has a mounting groove. The pin of the connecting member 63 penetrates the groove bottom of the mounting groove and is connected with the driving shaft 71, and the elastic member 64 is located in the mounting groove and abuts against the groove bottom of the mounting groove. When it is needed to adjust the direction of the wrench base 61 without driving the screw rod 421 to rotate, the wrench base 61 is pulled along the axial direction of the driving shaft 71 to be away from the second base body 41 and be separated from the driving shaft 71, and then the wrench base 61 is turned around the connecting member 63 to the appropriate position, the wrench base 61 is loosened, and the elastic member 64 pushes the wrench base 61 to the original position, that is, the position of the wrench base 61 sleeved on the driving shaft 71. Specifically, in the embodiment, the gear set comprises a driving wheel 72 connected with the driving shaft 71, a first driven wheel 73 engaged with the driving wheel 72, and a plurality of second driven wheels 74 engaged with the first driven wheel 73. In other embodiments, the gear set can have other structures, or when there is only one screw rod 421, there can be only one second driven wheel 74.

[0073] As shown in FIG. 1 and FIG. 13, the arrow C in FIG. 13 is the direction of the handle 62 folding into the wrench base 61 for storage, the handle 62 is hingedly connected to the wrench base 61, and the handle 62 can be operated to rotate around the hinge to fold into the wrench base 61 or pulled out. Specifically, the handle 62 is connected to the wrench base 61 by the peg 8, so that the handle 62 can be opened or stored (as shown in FIG. 1) around the peg 8 connection hole of the wrench base 61. As shown in FIG. 13, the handle 62 is in an open state, and when the handle 62 is opened, the handle 62 can be shaken to make the wrench base 61 drive the drive shaft 71 to rotate. The axis of the peg 8 is perpendicular to the axis of the drive shaft 71.

[0074] Further, as shown in FIG. 3, the transmission assembly 7 includes: a drive shaft 71, a driving wheel 72 connected to the drive shaft 71, a first driven wheel 73 engaged with the driving wheel 72, a plurality of second driven wheels 74 engaged with the first driven wheel 73; a screw 421 connected to the second driven wheel 74, the number of second driven wheels 74 is the same as the number of screws 421, and they are arranged one-to-one; the drive wrench 6 drives the drive shaft 71 to rotate, the drive shaft 71 drives the driving wheel 72 to rotate, the driving wheel 72 drives the first driven wheel 73 to rotate, the first driven wheel 73 drives the plurality of second driven wheels 74 to rotate, and the second driven wheels 74 drive the corresponding screws 421 to rotate. The transmission assembly 7 further includes a fixed shaft 75 connected to the first driven wheel 73 and the second cover plate 411, the transmission assembly 7 is installed on the second base body 41, the second cover plate 411 covers the transmission assembly 7, and the drive wrench 6 is arranged on the side of the second cover plate 411 away from the first base 3.

[0075] In the embodiment, the screw 421 and the butt joint 33 are both multiple, and in other embodiments, the screw 421 can be one, and at this time the transmission assembly 7 can be changed accordingly, and only one screw 421 is driven to rotate.

[0076] Another embodiment of the present application relates to a fluid discharge system. The fluid discharge system can include a container, a liner bag and a pusher as mentioned in the above embodiment. The container is generally a middle-sized bulk container. The liner bag is provided with a discharge port and is installed in the container. The discharge process of the fluid discharge system is described. First, the liner bag is clamped between the first roller and the second roller. Specifically, the liner bag is first separated from the docking member by operating the locking structure and the first roller and the second roller are then released. Then, the upper part of the liner bag is clamped on the pusher of the container. The first roller and the second roller are then locked by operating the locking structure and the docking member. Next, the driving device is started. Under the driving of the driving device, the first roller and the second roller of the pusher rotate reversely downward and press the bag body of the liner bag, thereby pushing the liquid in the liner bag and discharging the liquid from the discharge port. During the liquid discharge process, the first roller and the second roller automatically descend with the liquid surface and push the liquid under the driving of the driving device as the liquid in the liner bag decreases.

[0077] The preferred embodiments of the present application have been described in detail above, but it should be understood that modifications can be made to the embodiments, if necessary, to employ various patent, application and publication aspects, features and concepts to provide additional embodiments.

[0078] These and other changes can be made to the embodiments in light of the above detailed description. In general, the terms used in the following claims should not be construed to limit the embodiments of the application to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

[0079] It is not difficult to find that the present embodiment is a system embodiment corresponding to the first embodiment, and the present embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in the present embodiment, and are not described here again in order to reduce repetition. Correspondingly, the related technical details mentioned in the present embodiment can also be applied in the first embodiment.

[0080] It is worth mentioning that each module involved in the present embodiment is a logical module. In actual application, a logical unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of the present application, units not closely related to solving the technical problems proposed by the present application are not introduced in the present embodiment, but this does not mean that there are no other units in the present embodiment.

[0081] Those skilled in the art can understand that the above embodiments are specific embodiments for implementing the present application, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the present application.

Claims

1. A pusher, characterized in that The utility model relates to a kind of extrusion pushing device, including: First extrusion pushing piece, the first extrusion pushing piece includes: first mounting frame, and the first axle of rotation connection with the first mounting frame; Second extrusion pushing piece, one end of the second extrusion pushing piece is hingedly connected with one end of the first extrusion pushing piece;The second extrusion pushing piece includes: second mounting frame, and the second axle of rotation connection with the second mounting frame; First base, the other end of the first base is connected with the first extrusion pushing piece, and the first base includes: first base body, elastic body arranged in the first base body, docking piece;The first axle is rotationally connected with the first base body;The elastic body and the docking piece are opposite to the side of the hingedly connected end of the first extrusion pushing piece and the second extrusion pushing piece, and the docking piece is applied to the pushing force towards the hingedly connected end of the first extrusion pushing piece and the second extrusion pushing piece; Second base, the other end of the second base is connected with the second extrusion pushing piece, and the second base includes: second base body, locking structure connected with the second base body;The second axle is rotationally connected with the second base body;The locking structure is detachably connected with the docking piece;The locking structure is used to be inserted into the docking piece to adjust the included angle between the first extrusion pushing piece and the second extrusion pushing piece, and when the locking structure is inserted into the docking piece to locking position and the docking piece is locked, the first axle and the second axle are clamped;And Driving device, the driving device is used to drive the first axle and the first axle relative rotation.

2. The pusher according to claim 1, characterized in that The first base body includes: Seat body part, the seat body part is provided with first clamping groove for embedding the elastic body, and recess for embedding the docking piece;The side of the seat body part towards the second base is also provided with insertion port communicated with the recess;The locking structure is used to be inserted into the docking piece through the insertion port;And First cover plate, the first cover plate has support part inserted into the seat body part;The end of the docking piece away from the second base is opposite to the support part, and the side of the docking piece towards the second base and away from the elastic body is opposite to the wall surface of the recess.

3. The pusher according to claim 2, characterized in that The docking piece is polygonal nut; The recess is polygonal recess matched with the shape of the docking piece;The first clamping groove is semicircular clamping groove; The locking structure includes: screw rod penetrating the second base body, the screw rod is rotationally connected with the second base body, and is used to be inserted into the docking piece and locked with the docking piece when inserted into locking position.

4. The pusher of claim 1, wherein The docking piece is nut;The locking structure includes: screw rod penetrating the second base body, the screw rod is rotationally connected with the second base body, and is used to be inserted into the docking piece and locked with the docking piece when inserted into locking position.

5. The pusher of claim 4, wherein The screw rod, the docking piece, the elastic body all have multiple, and same number, one-to-one correspondence setting; The locking structure further includes: driving part, the driving part drives each screw rod to be inserted into corresponding docking piece, and is locked with the docking piece;The driving part also drives each screw rod to be separated from corresponding docking piece.

6. The pusher of claim 5, wherein The driving part includes: A driving wrench; and The transmission assembly comprises a driving shaft, a driving wheel connected with the driving shaft, a first driven wheel engaged with the driving wheel, and a plurality of second driven wheels engaged with the first driven wheel; the screw rods are connected with the second driven wheels, the number of the second driven wheels is the same as that of the screw rods, and the second driven wheels are arranged one by one in correspondence with the screw rods; the driving wrench drives the driving shaft to rotate, the driving shaft drives the driving wheel to rotate, the driving wheel drives the first driven wheel to rotate, the first driven wheel drives the plurality of second driven wheels to rotate, and the second driven wheels drive the corresponding screw rods to rotate.

7. The pusher according to claim 6, characterized in that At least two of the plurality of screw rods are arranged longitudinally; and at least two of the plurality of second driven wheels are arranged longitudinally.

8. The pusher of claim 4, wherein, The locking structure further comprises a driving member, which comprises a driving wrench and a transmission assembly connecting the driving wrench and the screw rods; The driving wrench comprises: a wrench base; a handle connected with the wrench base; a connecting member connecting the wrench base and the transmission assembly, wherein the wrench base is connected with the connecting member and moves along the extension direction of the connecting member relative to the second base; the handle drives the wrench base to rotate, and the wrench base drives the transmission assembly; and a resilient member abutting against the connecting member and the wrench base along the length direction of the screw rod and applying a pushing force to the wrench base towards the second base body.

9. The pusher of claim 8, wherein, The handle is hingedly connected with the wrench base, and the handle can be operatively rotated about the hinge with the wrench base to be pulled into or pulled out of the wrench base; The transmission assembly comprises a driving shaft and a gear set connected with the driving shaft, wherein the gear set is connected with the screw rods; the wrench base is slidably connected with the driving shaft along the axis direction of the driving shaft and drives the driving shaft to rotate about the axis thereof; and the wrench base can be operatively moved along the axis direction of the driving shaft to be separated from the driving shaft; The connecting member is a hexagonal bolt, and the resilient member is a tower spring; The wrench base is provided with a mounting groove; The pin of the connecting member penetrates through the groove bottom of the mounting groove and is connected with the driving shaft; and the resilient member is located in the mounting groove and abuts against the groove bottom of the mounting groove.

10. A fluid discharge system characterized by, The fluid discharge system comprises: a container and an inner liner bag provided with a discharge port and installed in the container, and the fluid discharge system further comprises the extruder as claimed in any one of claims 1-9, wherein the first roller and the second roller can operatively clamp the inner liner bag therebetween and can be oppositely rotated by the driving device to apply an extruding force to the inner liner bag.

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