CN116280769A

CN116280769A - Tank assembly with pressure relief function

Info

Publication number: CN116280769A
Application number: CN202310168469.5A
Authority: CN
Inventors: 金达根; 杨烨; 杨朝猛
Original assignee: Yangzhou Fengsheng Equipment Manufacturing Co ltd
Current assignee: Yangzhou Fengsheng Equipment Manufacturing Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-06-23

Abstract

The invention discloses a tank assembly with a pressure relief function, and relates to the technical field of tanks. According to the invention, the air inlet is formed in the bottom of the pressure relief seat, so that the pressure in the tank body is led into the pressure relief cavity through the formed air inlet to be subjected to pressure relief treatment, the pressure entering the pressure relief cavity firstly extrudes the valve core to slide on the guide rod and the inner wall of the pressure relief cavity, the valve core upwards moves and extrudes the first spring to compress the valve core, and when the compression amount of the first spring exceeds a set safety value, the valve core at the moment moves to the position above the exhaust hole on the pressure relief cavity, and the pressure is discharged from the exhaust hole to be subjected to pressure relief.

Description

Tank assembly with pressure relief function

Technical Field

The invention relates to the technical field of tank bodies, in particular to a tank body assembly with a pressure relief function.

Background

The tank is used for storing solid gas or liquid, and the tank assembly is meant as an aggregate. A series of parts or products form a whole body for realizing a specific function, the system is generally called an assembly, and when the tank body assembly is used, the tank body has a certain air pressure.

The prior publication number CN 217707253U is named as a high-stability tank assembly,

the utility model relates to a jar body assembly technical field, including liquid storage pot and stabilizer blade, the liquid storage pot is inside to be offered and to hold the chamber, and holds chamber top intercommunication and have the feed inlet, hold chamber bottom left side and paste the inclined plate that inclines downwards, and the inclined plate right side end has offered the discharging pipe, the discharging pipe middle part is provided with the opening and closing valve, stabilizer blade symmetry fixed mounting is in liquid storage pot bottom both sides, and stabilizer blade outside middle part transversely has offered the jack, the outside left side vertical equidistant cat ladder that has of liquid storage pot, and liquid storage pot left side top fixed mounting has the platform, the platform left side runs through and is provided with the liquid level pole, and the liquid level pole runs through the liquid storage pot and holds the chamber and be linked together. The utility model provides a high stability jar body assembly exerts the direction restriction to jar body hoist and mount position of placing for jar body obtains when stably accepting, effectively slows down the impact of placing environmental oscillation to jar body, makes jar body possess more good stability.

The device can effectively slow down the impact of placing environmental oscillation on the tank body, so that the tank body has better stability, but in use, the pressure can be accumulated in the tank body, the device does not have the pressure release function, so that the pressure in the tank body is too high, potential safety hazards exist, the explosion-proof capability of the tank body is poor, and meanwhile, the tank body is inconvenient to install and detach between the top cover and the tank body.

Disclosure of Invention

The invention aims to solve the problem that the pressure in the tank body is not discharged and relieved when the tank body is used in the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a jar body assembly with pressure release function, includes jar body and top cap, the top cap set up in jar body top, top cap top center switch-on is connected with the catheter, catheter top fixedly connected with guide holder, the guide holder inside wall is provided with the screw groove, threaded connection has a fixed section of thick bamboo in the screw groove, fixed section of thick bamboo top fixedly connected with shrouding, shrouding top fixed mounting has the knob, fixed section of thick bamboo inboard is provided with the pressure release seat, the pressure release seat inboard is provided with pressure release subassembly.

Preferably, the pressure release subassembly comprises guide arm, first spring and case, pressure release seat inner wall is provided with the pressure release chamber, shrouding bottom center fixed mounting has the spring holder, the guide arm vertical installation in shrouding in the pressure release chamber and pressure release seat inner wall opposite face, first spring housing is located the guide arm outside, first spring top fixed connection in the spring holder bottom surface, first spring bottom with case top surface fixed connection, the case inner wall slide set up in the guide arm outer wall, just the case outer wall slide set up in pressure release intracavity wall.

Preferably, two groups of exhaust holes communicated with the pressure relief cavity are symmetrically formed in the outer walls of the two sides of the pressure relief seat, two groups of exhaust ports are symmetrically formed in the outer walls of the liquid guide tube at the outer sides of the exhaust holes, and the two groups of exhaust ports are communicated and connected with the pressure relief cavity.

Preferably, the bottom of the pressure relief seat is uniformly provided with a plurality of groups of air inlets, the plurality of groups of air inlets are in conductive connection with the pressure relief cavity, and the valve core at the bottom end of the first spring is positioned at the bottom side of the air outlet when the first spring is in a natural state.

Preferably, the outer wall of the tank body is provided with three groups of explosion-proof components, the three groups of explosion-proof components are uniformly arranged on the outer side of the tank body, and the three groups of explosion-proof components are fixedly connected through a fixing rod.

Preferably, the explosion-proof assembly comprises branch and explosion-proof circle, the branch is provided with four groups, four groups branch one end evenly weld in explosion-proof circle inside wall, and four groups the branch other end all weld in jar outer wall.

Preferably, the top cover outer wall symmetry is provided with two sets of fixed plates, two sets of fixed plate four corners department all through fixing bolt fixed connection in the top cover outer wall, and two sets of a fixed plate lateral wall all welds there is the handle.

Preferably, a circle of clamping groove is formed in the outer wall of the top end of the tank body, a circle of clamping teeth are uniformly arranged in the clamping groove, a limiting assembly is clamped on one side of each clamping tooth, and two groups of sliding grooves are symmetrically formed in the inner side wall of the top cover on one side of each clamping groove.

Preferably, the limiting component is composed of a pull rod, a clamping block, a clamping plate and a second spring, the clamping plate is slidably arranged on the inner wall of the sliding groove, one end of the pull rod is fixedly connected with the center of one side wall of the clamping plate, the other end of the pull rod penetrates through the outer wall of the top cover and is arranged on the inner side of the handle, the pull rod is welded at one end of the pull rod and located on the inner side of the handle, the second spring is sleeved on the outer end of the pull rod, two ends of the second spring are fixedly connected with the clamping plate and the opposite surfaces of the sliding groove respectively, the clamping block is fixedly connected with the center of the other side of the clamping plate, and one side wall of the clamping block is arranged in a clamping tooth groove clamped with the clamping tooth.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the air inlet is formed in the bottom of the pressure relief seat and is used for leading the pressure in the tank body into the pressure relief cavity through the formed air inlet to perform pressure relief treatment, the pressure entering the pressure relief cavity firstly extrudes the valve core to slide on the guide rod and the inner wall of the pressure relief cavity, the valve core upwards moves and extrudes the first spring to compress, when the compression amount of the first spring exceeds a set safety value, the valve core at the moment moves to the position above the air exhaust hole on the pressure relief cavity, the pressure is discharged from the air exhaust hole to relieve pressure, and when the pressure in the tank body is at the safety value, the valve core is driven to downwards move and return under the driving of the elastic force of the first spring.

2. According to the invention, through the arranged explosion-proof components, damage to surrounding people or the surrounding people after the tank is exploded due to overhigh pressure or other reasons in the tank can be avoided, the structural strength of the tank can be improved through the uniformly arranged explosion-proof components, meanwhile, the connection strength between the explosion-proof components can be enhanced through the arranged fixing rods, and the whole tank can be driven to move through the arrangement of two groups of handles.

3. According to the invention, the clamping block arranged on one side of the clamping plate can be extruded by the second spring and is embedded into the clamping teeth so as to limit the top cover and the tank body, when the limit is required to be released, the pull handle can be pulled, the pull rod can be driven to move under the drive of the pull handle, the clamping plate and the clamping block can be driven to slide into the sliding groove through the movement of the pull rod, at the moment, the clamping block is separated from the clamping groove, and the limit on the top cover is released, so that the top cover and the tank body can be conveniently installed and detached.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a front partial cross-sectional structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure A of the present invention;

FIG. 4 is an enlarged schematic view of the structure B of the present invention;

FIG. 5 is a schematic perspective view of the present invention;

FIG. 6 is a schematic diagram of the front view of the present invention;

FIG. 7 is a schematic top view of the present invention;

fig. 8 is a schematic perspective view of the present invention.

In the figure: 1. a tank body; 2. a support rod; 3. an explosion-proof ring; 4. a fixed rod; 5. a top cover; 6. a fixing plate; 7. a handle; 8. a fixing bolt; 9. a knob; 10. a sealing plate; 11. a guide seat; 12. a catheter; 13. a pressure relief seat; 14. an air inlet; 15. an exhaust port; 16. a guide rod; 17. a first spring; 18. a valve core; 19. a sealing gasket; 20. a pull handle; 21. a pull rod; 22. a clamping groove; 23. latch teeth; 24. a clamping block; 25. a clamping plate; 26. a second spring; 27. a chute; 28. and an exhaust hole.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.

As shown in fig. 1-8, the present invention provides a technical solution: the utility model provides a jar body assembly with pressure release function, including jar body 1 and top cap 5, top cap 5 sets up in jar body 1 top, top cap 5 top center switch-on is connected with catheter 12, catheter 12 top fixedly connected with guide seat 11, guide seat 11 inside wall is provided with the screw groove, threaded connection has a fixed section of thick bamboo in the screw groove, fixed section of thick bamboo top fixedly connected with shrouding 10, shrouding 10 top fixed mounting has knob 9, fixed section of thick bamboo inboard is provided with pressure release seat 13, pressure release seat 13 inboard is provided with the pressure release subassembly, threaded connection through fixed section of thick bamboo and guide seat 11 inner wall, can carry out fixed mounting to whole pressure release seat 13, when installation or take out pressure release seat 13, accessible knob 9 that sets up rotates and installs or dismantle, the shrouding 10 that sets up plays sealed effect, the inner wall switch-on the guide catheter 12 on jar body 1 and the top cap 5 at this moment, when the pressure of jar body 1 inside exceeds standard, high atmospheric pressure in the jar body 1 is pressure release through the pressure release seat 13 that sets up, pressure release subassembly inboard is used for the pressure release.

The pressure release assembly comprises a guide rod 16, a first spring 17 and a valve core 18, a pressure release cavity is formed in the inner wall of the pressure release seat 13, a spring seat is fixedly arranged at the center of the bottom of the sealing plate 10, the guide rod 16 is vertically arranged on the opposite surface of the sealing plate 10 in the pressure release cavity and the inner wall of the pressure release seat 13, the first spring 17 is sleeved on the outer side of the guide rod 16, the top end of the first spring 17 is fixedly connected to the bottom surface of the spring seat, the bottom end of the first spring 17 is fixedly connected with the top surface of the valve core 18, the inner wall of the valve core 18 is slidably arranged on the outer wall of the guide rod 16, the outer wall of the valve core 18 is slidably arranged on the inner wall of the pressure release cavity, the pressure release cavity is arranged on the inner wall of the pressure release seat 13, the pressure release cavity is used for leading in the pressure inside the tank body 1, the pressure release cavity can be carried out under the driving of the pressure release assembly, in use, the pressure entering the pressure release cavity can be extruded from the tank body 1 when the pressure inside the pressure release cavity is overlarge, the pressure entering the pressure release cavity can be firstly extruded to slide the guide rod 16 and the inner wall of the pressure release cavity, the first spring 17 can be compressed when the valve core 18 moves upwards, the first spring 17 is compressed when the compression quantity of the first spring 17 exceeds the set safety value, the upper pressure value, the valve core 18 is moved to the upper than 28, and then the pressure is discharged from the upper side 28, and then the pressure is discharged from the pressure cavity and then, and the pressure is discharged.

Two groups of exhaust holes 28 communicated with the pressure release cavity are symmetrically formed in the outer walls of two sides of the pressure release seat 13, two groups of exhaust holes 15 are symmetrically formed in the outer wall of the liquid guide tube 12 outside the exhaust holes 28, the two groups of exhaust holes 15 are communicated with the pressure release cavity, the arranged exhaust holes 28 are used for discharging pressure inside the pressure release seat 13, the discharged pressure can be led out of the tank body 1 through the arranged exhaust holes 15 to release pressure, and the exhaust holes 15 and the exhaust holes 28 are arranged at the same horizontal end, so that the pressure in the exhaust holes 28 can be timely led out of the exhaust holes 15.

The seal groove is arranged at the bottom end of the inner side wall of the guide seat 11, the seal gasket 19 is embedded in the seal groove, the inner ring of the seal gasket 19 is clamped in the seal groove arranged on the outer wall of the pressure relief seat 13, and the seal groove is used for installing the seal gasket 19 because the tank body 1 is internally provided with pressure, so that the tank body 1 needs to be sealed, after the fixed cylinder is completely screwed into the guide seat 11, the seal gasket 19 in the seal groove can be embedded into the seal groove for sealing, and meanwhile, the sealing plate 10 can also be sealed on the top surface of the guide seat 11 for sealing.

A plurality of groups of air inlets 14 are uniformly formed in the bottom of the pressure relief seat 13, the plurality of groups of air inlets 14 are connected with the pressure relief cavity in a conducting mode, a valve core 18 at the bottom end of the first spring 17 is located at the bottom side of the air outlet 15 when the first spring 17 is in a natural state, the air inlets 14 are formed in the bottom of the pressure relief seat 13 and used for leading pressure in the tank body 1 into the pressure relief cavity through the formed air inlets 14 to be subjected to pressure relief treatment, and therefore the safety performance of the tank body 1 is improved.

The outer wall of the tank body 1 is provided with three groups of explosion-proof components, the three groups of explosion-proof components are uniformly arranged on the outer side of the tank body 1, the three groups of explosion-proof components are fixedly connected through the fixing rod 4, the arranged explosion-proof components can prevent the tank body 1 from being damaged by people or other reasons around after being blasted by the tank body 1, the uniformly arranged explosion-proof components can improve the structural strength of the tank body 1, and meanwhile, the connecting strength between the explosion-proof components can be enhanced through the fixing rod 4.

The explosion-proof subassembly comprises branch 2 and explosion-proof circle 3, and branch 2 is provided with four groups, and four group's branch 2 one end evenly welds in explosion-proof circle 3 inside wall, and four group's branch 2 other ends all weld in jar body 1 outer wall, and the explosion-proof circle 3 of setting can reduce the destructive nature to surrounding behind jar body 1 explosion, simultaneously through the welding of branch 2, has improved jar body 1 outside intensity greatly.

The top cap 5 outer wall symmetry is provided with two sets of fixed plates 6, and two sets of fixed plate 6 four corners department all is in top cap 5 outer wall through fixing bolt 8 fixed connection, and two sets of fixed plate 6 lateral wall all weld handle 7, and during the use, can drive whole jar body 1 through setting up two sets of handles 7 and remove, and fixed plate 6 and fixing bolt 8 that set up are used for the fixed mounting of handle 7 between top cap 5.

A circle of clamping groove 22 is formed in the outer wall of the top end of the tank body 1, a circle of clamping teeth 23 are uniformly arranged in the clamping groove 22, a limiting component is clamped on one side of the clamping teeth 23, two groups of sliding grooves 27 are symmetrically formed in the inner side wall of the top cover 5 on one side of the clamping groove 22, and the top cover 5 can be fixedly and fixedly connected with the tank body 1 through clamping between the clamping teeth 23 and the limiting component.

The limiting component comprises a pull rod 21, a clamping block 24, a clamping plate 25 and a second spring 26, wherein the clamping plate 25 is slidably arranged on the inner wall of a sliding groove 27, one end of the pull rod 21 is fixedly connected to the center of one side wall of the clamping plate 25, the other end of the pull rod 21 penetrates through the outer wall of the top cover 5 and is arranged on the inner side of the handle 7, one end of the pull rod 21 positioned on the inner side of the handle 7 is welded with a pull handle 20, the second spring 26 is sleeved at the outer end of the pull rod 21, two ends of the second spring 26 are fixedly connected to the opposite surfaces of the clamping plate 25 and the sliding groove 27 respectively, the clamping block 24 is fixedly connected to the center of the other side of the clamping plate 25, one side wall of the clamping block 24 is arranged in a clamping groove clamped with the clamping teeth 23, the clamping block 24 is embedded in the clamping teeth 23 under the driving of the elasticity of the second spring 26, so that the top cover 5 and the tank body 1 are limited, when the limiting is required to be released, the pull handle 20 can be pulled, the pull handle 21 can be driven to move, the clamping plate 25 and the clamping block 24 can be driven to slide into the sliding groove 27 through the movement of the pull rod 21.

Working principle: the whole pressure relief seat 13 can be fixedly installed through the threaded connection of the fixed cylinder and the inner wall of the guide seat 11, when the pressure relief seat 13 is installed or taken out, the installation or disassembly can be carried out through the rotation of the set knob 9, the set sealing plate 10 plays a role in sealing, at the moment, the tank body 1 is connected with the inner wall of the liquid guide tube 12 on the top cover 5 in a conducting way, when the pressure inside the tank body 1 exceeds the standard, the air inlet 14 is formed at the bottom of the pressure relief seat 13 and used for leading the pressure inside the tank body 1 into the pressure relief cavity through the formed air inlet 14 for pressure relief treatment, the safety performance of the tank body 1 is improved, the high air pressure in the tank body 1 can be relieved through the set pressure relief seat 13, the pressure relief cavity is arranged on the inner wall of the pressure relief seat 13 and used for leading the pressure inside the tank body 1 in, the pressure relief treatment can be carried out under the driving of the pressure relief assembly, and in use, when the pressure in the tank body 1 is overlarge, the pressure in the pressure relief cavity in the pressure relief seat 13 is led into the tank body 1, the pressure in the pressure relief cavity firstly extrudes the valve core 18 to slide on the guide rod 16 and the inner wall of the pressure relief cavity, the valve core 18 is extruded to compress the first spring 17 while the valve core 18 moves upwards, when the compression amount of the first spring 17 exceeds a set safety value, the valve core 18 at the moment moves to the upper part of the air vent 28 on the pressure relief cavity, the pressure is discharged from the air vent 28 to relieve pressure, when the pressure in the tank body 1 is at the safety value, the valve core 18 is driven by the elasticity of the first spring 17 to move downwards for homing, the arranged air vent 28 is used for discharging the pressure in the pressure relief seat 13, the discharged pressure is led out of the tank body 1 through the arranged air vent 15 to relieve pressure, the air vent 15 and the air vent 28 are arranged at the same horizontal end, the pressure in the exhaust hole 28 is led out from the exhaust hole 15 in time, because the pressure is arranged in the tank body 1, the tank body 1 needs to be subjected to sealing treatment, the sealing groove is used for installing the sealing gasket 19, after the fixed cylinder is completely screwed into the guide seat 11, the sealing gasket 19 in the sealing groove can be embedded into the sealing groove to be subjected to sealing treatment, meanwhile, the sealing plate 10 can also be sealed on the top surface of the guide seat 11, the arranged explosion-proof component can avoid the situation that the pressure in the tank body 1 is too high or some other reasons cause the tank body 1 to damage surrounding people or the situation after being exploded, the uniformly arranged explosion-proof component can improve the structural strength of the tank body 1, meanwhile, the connecting strength between the explosion-proof component can be enhanced through the fixed rod 4, the whole tank body 1 can be driven by the two groups of handles 7, the clamping block 24 on one side of the clamping plate 25 can be extruded into the clamping tooth 23 under the driving of the elasticity of the second spring 26 so as to limit the top cover 5 and the tank body 1, when the limit is required to be released, the pull handle 20 can be pulled, the pull handle 20 can be driven to move, the pull handle 21 can be driven to move, and the clamping block 24 can be released from the clamping block 24 through the pull rod 25 and the clamping block 24.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. Tank body assembly with pressure release function, including jar body (1) and top cap (5), its characterized in that: the utility model discloses a jar, including jar body (1), top cap (5), top center switch-on in top cap (5) top is connected with catheter (12), catheter (12) top fixedly connected with guide holder (11), guide holder (11) inside wall is provided with the screw groove, threaded connection has a fixed section of thick bamboo in the screw groove, fixed section of thick bamboo top fixedly connected with shrouding (10), shrouding (10) top fixed mounting has knob (9), fixed section of thick bamboo inboard is provided with pressure release seat (13), pressure release seat (13) inboard is provided with the pressure release subassembly.

2. The tank assembly with pressure relief function according to claim 1, wherein: the pressure relief assembly is composed of a guide rod (16), a first spring (17) and a valve core (18), a pressure relief cavity is formed in the inner wall of the pressure relief seat (13), a spring seat is fixedly arranged at the center of the bottom of the sealing plate (10), the guide rod (16) is vertically arranged on the opposite surface of the sealing plate (10) in the pressure relief cavity and the inner wall of the pressure relief seat (13), the first spring (17) is sleeved on the outer side of the guide rod (16), the top end of the first spring (17) is fixedly connected to the bottom surface of the spring seat, the bottom end of the first spring (17) is fixedly connected with the top surface of the valve core (18), the inner wall of the valve core (18) is slidably arranged on the outer wall of the guide rod (16), and the outer wall of the valve core (18) is slidably arranged on the inner wall of the pressure relief cavity.

3. The tank assembly with pressure relief function according to claim 2, wherein: two groups of exhaust holes (28) communicated with the pressure relief cavity are symmetrically formed in the outer walls of the two sides of the pressure relief seat (13), two groups of exhaust ports (15) are symmetrically formed in the outer walls of the liquid guide tube (12) at the outer sides of the exhaust holes (28), and the two groups of exhaust ports (15) are communicated and connected with the pressure relief cavity.

4. The tank assembly with pressure relief function according to claim 1, wherein: the sealing groove is formed in the bottom end of the inner side wall of the guide seat (11), a sealing gasket (19) is embedded in the sealing groove, and the inner ring of the sealing gasket (19) is clamped in a sealing groove formed in the outer wall of the pressure relief seat (13).

5. A canister assembly with pressure relief function according to claim 3, characterized in that: the pressure relief seat (13) bottom has evenly offered a plurality of groups air inlet (14), a plurality of groups air inlet (14) all with pressure relief chamber conduction connection, case (18) of its bottom are located when first spring (17) are in natural state gas vent (15) bottom side.

6. The tank assembly with pressure relief function according to claim 1, wherein: the anti-explosion device is characterized in that three groups of anti-explosion components are arranged on the outer wall of the tank body (1), the three groups of anti-explosion components are uniformly arranged on the outer side of the tank body (1), and the three groups of anti-explosion components are fixedly connected through fixing rods (4).

7. The tank assembly with pressure relief function according to claim 6, wherein: the explosion-proof assembly comprises a supporting rod (2) and an explosion-proof ring (3), the supporting rod (2) is provided with four groups, one end of the supporting rod (2) is uniformly welded to the inner side wall of the explosion-proof ring (3), and the other end of the supporting rod (2) is uniformly welded to the outer wall of the tank body (1).

8. The tank assembly with pressure relief function according to claim 1, wherein: two groups of fixing plates (6) are symmetrically arranged on the outer wall of the top cover (5), the four corners of each fixing plate (6) are fixedly connected to the outer wall of the top cover (5) through fixing bolts (8), and handles (7) are welded on one side wall of each fixing plate (6).

9. The tank assembly with pressure relief function according to claim 8, wherein: the novel tank is characterized in that a circle of clamping groove (22) is formed in the outer wall of the top end of the tank body (1), a circle of clamping teeth (23) are uniformly arranged in the clamping groove (22), a limiting component is clamped on one side of the clamping teeth (23), and two groups of sliding grooves (27) are symmetrically formed in the inner side wall of the top cover (5) on one side of the clamping groove (22).

10. The tank assembly with pressure relief function according to claim 9, wherein: limiting component by pull rod (21), fixture block (24), cardboard (25) and second spring (26), cardboard (25) slide set up in spout (27) inner wall, pull rod (21) one end fixed connection in cardboard (25) lateral wall center, just pull rod (21) other end run through top cap (5) outer wall and set up in handle (7) inboard is located handle (7) inboard pull rod (21) one end welding has pull handle (20), second spring (26) cover is located pull rod (21) outer end, just second spring (26) both ends respectively fixed connection in cardboard (25) with spout (27) opposite face, fixture block (24) fixed connection in cardboard (25) opposite side center, just fixture block (24) lateral wall set up in with tooth groove of tooth (23) looks joint.