CN111337630A

CN111337630A - Portable air detector

Info

Publication number: CN111337630A
Application number: CN202010281807.2A
Authority: CN
Inventors: 张仕元
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-11
Filing date: 2020-04-11
Publication date: 2020-06-26

Abstract

The invention discloses a portable air detector, which comprises a control panel, a collection bottle, a main body, a connecting pipe, a protection device, a detection interface, a power supply interface, an operating rod, an anti-collision device, a handle, a display screen and a lock catch, wherein when the portable air detector is used after improvement, the control panel is used for detecting air in the collection bottle, a protective sleeve is connected on the connecting pipe and pushes a regulating plate, a hoop block is attached to the connecting pipe to prevent the connecting pipe from generating concave folding phenomenon and ensure the smoothness of detection, the main body is fixed on a mounting seat by an arc-shaped sleeve buckle during detection, the main body is tightly sucked and fixed on the mounting seat by a magnetic sheet auxiliary suction cup to prevent the main body from sliding off, a dustproof net is attached to the lower end of the main body to prevent dust from entering the detector, and ensure that internal electrical elements can stably run, so that the internal elements of the air detector can accurately detect the quality of, the detection accuracy of the air detector is guaranteed.

Description

Portable air detector

Technical Field

The invention relates to the field of air detection, in particular to a portable air detector.

Background

With the development of economy and the improvement of the taste of life, more and more people begin to pay attention to health and environmental protection. Many people can adopt the air quality detector to comprehensively detect the air quality condition and the content of substances in the air, and the health of pregnant women, children, old people and family personnel is comprehensively protected. When the air detector is used for detection, the improvement is as follows:

1. air detector is when detecting the inside air of gathering the bottle, and the test tube connection is on detecting the interface, if when removing the collection bottle, concave folding phenomenon can appear in the position of test tube link end, can block air detector and detect the air, needs the condition of user real-time observation test tube, reduces air detector's accuracy and detection efficiency.

2. Present air detector all adopts the suitcase shape, when detecting the use, personnel can the collision carelessly when moving around the detector, and the detector can collide with article on every side or even drop, leads to inside electrical components to appear damaging for the quality that detects out the air that air detector inner member's unable accuracy reduces air detector's detection precision.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a portable air detector, which aims to solve the problems that when the air detector detects the air in a collection bottle, a detection pipe is connected to a detection interface, if the collection bottle is moved, the position of the connection end of the detection pipe can be folded, the air detector can be blocked to detect the air, a user needs to observe the condition of the detection pipe in real time, and the accuracy and the detection efficiency of the air detector are reduced. Present air detector all adopts the suitcase shape, when detecting the use, personnel can the collision carelessly when moving around the detector, and the detector can collide with article on every side or even drop, leads to inside electrical components to appear damaging for the quality that can't accurate detection air of air detector inner member reduces air detector's the problem of detection precision.

In order to achieve the purpose, the invention is realized by the following technical scheme: a portable air detector structurally comprises a control panel, a collection bottle, a main body, a connecting pipe, a protection device, a detection interface, a power interface, an operating rod, an anti-collision device, a handle, a display screen and a lock catch, wherein the control panel is provided with the detection interface, the power interface, the operating rod and the display screen, the detection interface and the power interface are arranged on the same straight line, the power interface is communicated with a power switch, the collection bottle is connected with the detection interface through the connecting pipe, the protection device is sleeved with the detection interface, the protection device is connected with the connecting pipe in a laminating mode, the collection bottle and the detection interface are communicated at the left end and the right end of the connecting pipe, the collection bottle is fixedly arranged on the control panel, the control panel is embedded on the main body, the handle and the lock catch are arranged on the same plane, and the handle and the lock catch are arranged at the, an anti-collision device is arranged at the bottom of the main body.

As a further improvement of the invention, the protective device comprises a protective sleeve, a clamping rod, a fixing ring and a sealing ring, wherein the protective sleeve is arranged in the clamping sleeve, the clamping rod is in an L-shaped structure, the clamping rod is buckled on the clamping sleeve, the protective sleeve and the clamping sleeve are connected into a whole through the clamping rod, the lower end of the clamping rod is connected with the fixing ring in a fit manner, and the sealing ring is arranged between the fixing ring and the protective sleeve.

As a further improvement of the invention, the protective sleeve comprises a limiting ring, a shell, four hoop blocks and an installation element, wherein the limiting ring is arranged inside the shell, the hoop blocks are arranged on the limiting ring, the four hoop blocks are arranged on the limiting ring at equal intervals, the four hoop blocks are annularly arranged on the limiting ring, the hoop blocks are buckled with the installation element, and the installation element is embedded on the shell in a penetrating manner.

As a further improvement of the invention, the mounting element comprises an adjusting plate, a movable elastic block, a binding plate and a supporting plate, wherein the adjusting plate is arranged at the middle position of the supporting plate in a penetrating manner, the lower end of the supporting plate is provided with the movable elastic block, the lower end of the movable elastic block is connected with the binding plate, the movable elastic block and the binding plate are embedded and connected into a whole, and the adjusting plate is arranged at the middle position of the binding plate.

As a further improvement of the invention, the anti-collision device comprises a fixed plate, arc-shaped sleeve fasteners, a mounting seat, a protection assembly and anti-skid base plates, wherein the front end of the fixed plate is attached to the rear end of the protection assembly, the protection assembly is fixed at the left end and the right end of the mounting seat, the two ends of the bottom of the mounting seat are connected with the anti-skid base plates, the arc-shaped sleeve fasteners are arranged on the left end and the right end of the mounting seat, and the arc-shaped sleeve fasteners are arranged on the left end and the right end of the.

As a further improvement of the invention, the mounting seat is composed of a stainless steel waterproof plate, a soft cushion, a shock absorption pad and a dustproof net, the stainless steel waterproof plate is mounted at the bottom of the soft cushion, the top of the soft cushion is attached to the bottom of the shock absorption pad, the dustproof net is arranged at the top of the shock absorption pad, and the dustproof net is embedded in the shock absorption pad.

As a further improvement of the invention, the protection assembly comprises a magnetic suction plate, an anti-collision buffer plate and a pressing piece, wherein the magnetic suction plate is connected with the anti-collision buffer plate in an overlapped mode, the anti-collision buffer plate is arranged at the lower end of the pressing piece, and the anti-collision buffer plate is attached to the middle position of the pressing piece.

The magnetic attraction plate is composed of a magnetic sleeve, a magnetic attraction sheet, a sucker and a base, wherein the sucker is arranged in the middle of the magnetic sleeve, the bottom of the magnetic sleeve is embedded on the base in a penetrating mode, the magnetic attraction sheet is arranged on the base, and the magnetic attraction sheet is connected with the magnetic sleeve into a whole through the base.

As a further improvement of the invention, the pressing piece comprises a fixed attachment plate, seven pressing rods and pressing pads, the pressing rods are arranged on the fixed attachment plate and vertically embedded into the fixed attachment plate, the pressing rods are transversely arranged on the fixed attachment plate at equal intervals, and the tops of the pressing rods are connected with the bottoms of the pressing pads.

Advantageous effects of the invention

The invention relates to a portable air detector, which has the following beneficial effects:

when the air detector is used, the operation element on the control panel is used for detecting air in the collecting bottle, the protective sleeve is connected to the joint of the detection interface and the connecting pipe, the adjusting plate is pushed, the clamp block moves forwards, the clamp block is fixedly attached to the connecting pipe, the concave folding phenomenon at the joint of the detection interface and the connecting pipe is prevented, smoothness of air detection by the air detector is guaranteed, the connecting pipe is fixed by the clamping rod and the clamping sleeve in a matched mode, the connecting pipe is prevented from falling, and the detection efficiency of the air detector is improved.

When detecting, place the main part on the mount pad, with arc cover buckle with main part fixed mounting on the mount pad, through draw the supplementary sucking disc of magnetic sheet with inhaling tightly fixing on the mount pad of main part, the compression bar promotes the compression pad forward, make the compression pad can laminate mutually with the sucking disc, protect the main part, laminate at the main part lower extreme with the dust screen, prevent that the dust from getting into inside the detector, guarantee that inside electrical components can the steady operation, stainless steel waterproof board and shock pad cooperation carry out comprehensive protection to the main part, make the quality that detects out the air that air detector inner element can be accurate, guarantee air detector's detection precision.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a portable air detector according to the present invention;

fig. 2 is a schematic structural diagram of the protection device of the present invention.

Fig. 3 is a schematic plan view of the protective cover of the present invention.

Fig. 4 is a schematic view of the internal cross-section of the mounting member of the present invention.

Fig. 5 is a schematic structural diagram of the collision avoidance apparatus of the present invention.

Fig. 6 is a schematic view of the internal structure of the mounting base of the present invention.

Fig. 7 is a side sectional view of the shield assembly of the present invention.

FIG. 8 is a schematic structural view of a magnetic attraction plate according to the present invention.

Fig. 9 is a schematic view of the internal structure of the pressing member of the present invention.

In the figure: the device comprises a control panel-1, a collection bottle-2, a main body-3, a connecting pipe-4, a protection device-5, a detection interface-6, a power supply interface-7, an operating rod-8, an anti-collision device-9, a handle-10, a display screen-11, a lock catch-12, a protective sleeve-51, a clamping sleeve-52, a clamping rod-53, a fixing ring-54, a sealing ring-55, a limiting ring-511, a shell-512, a clamp block-513, a mounting element-514, an adjusting plate-5141, a movable elastic block-5142, an attaching plate-5143, a supporting plate-5144, a fixing plate-91, an arc-shaped lock catch-92, a mounting seat-93, a protection component-94, an anti-skid base plate-95, a stainless steel waterproof plate-931, a, Soft cushion-932, shock pad-933, dust screen-934, magnetic suction plate-941, anti-collision buffer plate-942, pressing piece-943, magnetic sleeve-9411, magnetic guiding sheet-9412, sucking disc-9413, base-9414, fixed pasting plate-9431, pressing rod-9432 and pressing pad-9433.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

Referring to fig. 1, the present invention provides a technical solution: a portable air detector structurally comprises a control panel 1, a collection bottle 2, a main body 3, a connecting pipe 4, a protection device 5, a detection interface 6, a power interface 7, an operating rod 8, an anti-collision device 9, a handle 10, a display screen 11 and a lock catch 12, wherein the control panel 1 is provided with the detection interface 6, the power interface 7, the operating rod 8 and the display screen 11, the detection interface 6 and the power interface 7 are arranged on the same straight line, the power interface 7 is communicated with a power switch, the collection bottle 2 is connected with the detection interface 6 through the connecting pipe 4, the protection device 5 is sleeved with the detection interface 6, the protection device 5 is connected with the connecting pipe 4 in a laminating manner, the collection bottle 2 and the detection interface 6 are communicated at the left end and the right end of the connecting pipe 4, the collection bottle 2 is fixedly installed on the control panel 1, the control panel 1 is embedded on the main body 3, the handle 10 and the lock catch 12 are arranged on the same plane, the handle 10 and the lock catch 12 are arranged at the front end of the main body 3, the anti-collision device 9 is arranged at the bottom of the main body 3, the air is collected by the collecting bottle 2, the collecting bottle 2 is connected with the detection interface 6 through the connecting pipe 4, the air quality is detected, and the detection effect is guaranteed.

Referring to fig. 2, the protection device 5 is composed of a protection sleeve 51, a clamping sleeve 52, a clamping rod 53, a fixing ring 54 and a sealing ring 55, the protection sleeve 51 is installed inside the clamping sleeve 52, the clamping rod 53 is in an L-shaped structure, the clamping rod 53 is buckled on the clamping sleeve 52, the protection sleeve 51 and the clamping sleeve 52 are connected into a whole through the clamping rod 53, the lower end of the clamping rod 53 is attached to the fixing ring 54, the sealing ring 55 is arranged between the fixing ring 54 and the protection sleeve 51, the protection sleeve 51 is connected to the connection position of the connection pipe 4 and the detection interface 6, the connection pipe 4 is adjusted by matching the fixing ring 54 and the sealing ring 55, the concave folding phenomenon at the connection position of the connection pipe 4 and the detection interface 6 is prevented, and the detection smoothness of the detector for the air inside the collector is.

Referring to fig. 3, the protective sleeve 51 is composed of a limiting ring 511, a housing 512, clamp blocks 513 and a mounting element 514, the limiting ring 511 is disposed inside the housing 512, the clamp blocks 513 are disposed on the limiting ring 511, four clamp blocks 513 are disposed, the four clamp blocks 513 are annularly disposed on the limiting ring 511 at equal intervals, the clamp blocks 513 are fastened with the mounting element 514, the mounting element 514 is embedded on the housing 512 in a penetrating manner, the four clamp blocks 513 are movable around the connecting pipe 4, the connecting pipe 4 is prevented from falling off from the detection interface 6 in the process of moving the collecting bottle 2, and the detection efficiency of the air detector is improved.

Referring to fig. 4, the mounting element 514 includes an adjusting plate 5141, a movable elastic block 5142, a joint plate 5143, and a supporting plate 5144, the adjusting plate 5141 is installed at a middle position of the supporting plate 5144 in a penetrating manner, the movable elastic block 5142 is disposed at a lower end of the supporting plate 5144, the lower end of the movable elastic block 5142 is connected to the joint plate 5143, the movable elastic block 5142 and the joint plate 5143 are integrally engaged, the adjusting plate 5141 is disposed at a middle position of the joint plate 5143, the joint plate 5143 is jointed to a rear side of the clamp block 513, and the clamp block 513 is assisted to stably mount the connecting pipe 4 on the detecting interface 6, so as to improve accuracy of the air detector.

Referring to fig. 5, the anti-collision device 9 is composed of a fixing plate 91, arc-shaped buckles 92, a mounting seat 93, protection components 94 and anti-slip pads 95, the front end of the fixing plate 91 is attached to the rear end of the protection components 94, the protection components 94 are fixed to the left end and the right end of the mounting seat 93, the anti-slip pads 95 are connected to the two ends of the bottom of the mounting seat 93, the arc-shaped buckles 92 are arranged on the four edges of the mounting seat 93, the arc-shaped buckles 92 are installed on the left end and the right end of the protection components 94, the main body 3 is fixed on the mounting seat 93 through the arc-shaped buckles 92, the main body 3 is protected, impact force on the detector is reduced, and electrical components inside the detector are damaged.

Example two

Referring to fig. 6, the mounting seat 93 is composed of a stainless steel waterproof plate 931, a cushion 932, a shock absorbing pad 933 and a dustproof net 934, the stainless steel waterproof plate 931 is mounted at the bottom of the cushion 932, the top of the cushion 932 is attached to the bottom of the shock absorbing pad 933, the dustproof net 934 is arranged at the top of the shock absorbing pad 933, the dustproof net 934 is embedded on the shock absorbing pad 933, the main body 3 is mounted on the mounting seat 93, the shock absorbing pad 933 is used for reducing the impact force on the main body 3, the dustproof net 934 is closely attached to the bottom of the main body 3, dust is prevented from entering the main body 3, and stable operation of electrical components inside the main body 3 is guaranteed.

Referring to fig. 7, the protection assembly 94 includes a magnetic attraction plate 941, a crash cushion plate 942, and a pressing member 943, the magnetic attraction plate 941 and the crash cushion plate 942 are overlapped and connected, the crash cushion plate 942 is disposed at a lower end of the pressing member 943, the crash cushion plate 942 is attached to a middle position of the pressing member 943, and the main body 3 is fixedly clamped on the mounting seat 93 by the magnetic attraction plate 941 and the pressing member 943, so that the main body 3 can accurately and stably detect the quality of air.

Please refer to fig. 8, the magnetic attraction plate 941 is composed of a magnetic sleeve 9411, a magnetic sheet 9412, a suction cup 9413 and a base 9414, the suction cup 9413 is disposed at the middle position of the magnetic sleeve 9411, the bottom of the magnetic sleeve 9411 is embedded on the base 9414 in a penetrating manner, the base 9414 is provided with a magnetic sheet 9412, the magnetic sheet 9412 is integrated with the magnetic sleeve 9411 through the base 9414, the suction cup 9413 is attached to the joint between the main body 3 and the mounting seat 93, so as to prevent the main body 3 from slipping off the mounting seat 93, and improve the stability and safety of the detector during working.

Referring to fig. 9, the pressing member 943 includes a fixing plate 9431, a pressing rod 9432 and a pressing pad 9433, the fixing plate 9431 is provided with the pressing rod 9432, the pressing rod 9432 is vertically embedded into the fixing plate 9431, the pressing rod 9432 is provided with seven pieces, the pressing rods 9432 are transversely arranged on the fixing plate 9431 at equal intervals, the top of the pressing rod 9432 is connected with the bottom of the pressing pad 9433, the pressing rod 9432 is matched with the suction cup 9413 to protect the main body 3, and the pressing pad 9433 is matched with the shock pad 933 to reduce the vibration of the main body 3, so that the detector can accurately detect air.

The working principle of the above technical solution is explained as follows:

when the air detection device is used, the main body 3 is opened through the lock catch 12, the power interface 7 is switched on, the power switch is switched on, air in an environment needing to be detected is collected through the collection bottle 2, then the collection bottle 2 is connected with the detection interface 6 through the connecting pipe 4, then the air in the collection bottle 2 is detected through operation of the operation element on the control panel 1, and then the detection result is displayed on the display screen 11, so that a worker can conveniently check the air detection result.

When detecting the air in the collection bottle 2, the protective sleeve 51 is sleeved and connected at the joint of the detection interface 6 and the connecting pipe 4, the connecting pipe 4 is connected on the limiting ring 511 in a penetrating way, the clamp block 513 is connected at the joint of the detection interface 6 and the connecting pipe 4 in a fitting way, the fitting plate 5143 is connected at the rear end of the clamp block 513 in a fitting way, the adjusting plate 5141 is pushed, so that the movable elastic block 5142 drives the attachment plate 5143 to move the clamp block 513 forward, so that the clamp block 513 can be fixedly attached around the connecting pipe 4 to prevent the concave folding phenomenon from occurring at the position of the connection between the detection interface 6 and the connecting pipe 4, so as to ensure the smoothness of air detection by the air detector, and then the clamp rod 53 is matched with the clamping sleeve 52, make protective sheath 51 can be with the inseparable lock of connecting pipe 4 on detecting interface 6, prevent that the phenomenon of dropping from appearing in connecting pipe 4, improve air detector's accuracy and detection efficiency.

When the detection is carried out, the main body 3 is placed on the mounting seat 93, the main body 3 is fixedly mounted on the mounting seat 93 by four arc-shaped sleeve buckles 92, the anti-skid base plate 95 is attached to the mounting seat 93, the mounting seat 93 is prevented from displacement, the working stability of the main body 3 is ensured, the main body 3 is tightly sucked on the left side and the right side of the main body 3 by the suckers 9413, the main body 3 is fixedly protected by the auxiliary suckers 9413 through the magnetic guide sheets 9412, the pressing rod 9432 pushes the pressing pad 9433 forwards, the pressing pad 9433 can be attached to the suckers 9413, the main body 942 3 is protected, the impact force on the left side and the right side of the main body 3 is reduced by the anti-collision buffer plate, the dustproof net 934 is attached to the lower end of the main body 3, dust is prevented from entering the inside of the detector, the stable operation of internal electric elements is ensured, the main body 3 is comprehensively protected by the cooperation of the stainless, and the internal elements of the air detector can accurately detect the quality of the air, so that the detection accuracy of the air detector is ensured.

The invention solves the problem that when the air detector detects the air in the collection bottle, the detection tube is connected to the detection interface, if the collection bottle is moved, the position of the connection end of the detection tube can be concave, the air detector can be blocked from detecting the air, a user needs to observe the condition of the detection tube in real time, and the accuracy and the detection efficiency of the air detector are reduced. The invention can be realized by mutually combining the components, when the air detector is used, the air in a collecting bottle is detected by using a control panel, a protective sleeve is connected at the joint of a detection interface and a connecting pipe, an adjusting plate is pushed, a clamp block is attached to the connecting pipe, the connecting pipe is prevented from being concavely folded, the smoothness of detection is ensured, and the connecting pipe is fixed by matching a clamping rod and a clamping sleeve to prevent the connecting pipe from falling, the detection efficiency of the air detector is improved. When detecting, place the main part on the mount pad, fix the main part on the mount pad with arc overlap buckle, inhale the main part tightly through drawing magnetic sheet auxiliary suction cup and fix on the mount pad, prevent that the landing phenomenon from appearing in the main part, laminate at the main part lower extreme with the dust screen, prevent that the dust from getting into inside the detector, guarantee that inside electrical components can the steady operation, stainless steel waterproof board and shock pad cooperation carry out comprehensive protection to the main part, make the quality of detecting out the air that air detector internal components can be accurate, guarantee air detector's detection precision.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a portable air detector, its structure includes control panel (1), collection bottle (2), main part (3), connecting pipe (4), protection device (5), detection interface (6), power source (7), action bars (8), collision device (9), handle (10), display screen (11), hasp (12), its characterized in that:

the anti-collision device is characterized in that a detection interface (6), a power interface (7), an operating rod (8) and a display screen (11) are arranged on the control panel (1), the collection bottle (2) is connected with the detection interface (6) through a connecting pipe (4), the protection device (5) is connected with the connecting pipe (4), the handle (10) and the lock catch (12) are arranged on the main body (3), and the anti-collision device (9) is fixed on the main body (3);

protection device (5) comprise protective sheath (51), clamping sleeve (52), kelly (53), solid fixed ring (54), sealing washer (55), protective sheath (51) and clamping sleeve (52) are even as an organic whole through kelly (53), be equipped with sealing washer (55) between solid fixed ring (54) and protective sheath (51).

2. The portable air detector of claim 1, wherein: protective sheath (51) comprises spacing ring (511), shell (512), clamp piece (513), installation component (514), shell (512) is established in spacing ring (511), clamp piece (513) and installation component (514) lock mutually.

3. The portable air detector according to claim 2, wherein: the mounting element (514) is composed of a regulating plate (5141), a movable elastic block (5142), a joint plate (5143) and a supporting plate (5144), the regulating plate (5141) is installed on the supporting plate (5144) in a penetrating mode, and the movable elastic block (5142) is connected with the joint plate (5143).

4. The portable air detector of claim 1, wherein: anticollision device (9) are buckled (92), mount pad (93), protective component (94), anti-skidding backing plate (95) by fixed plate (91), arc cover and are constituteed, fixed plate (91) are laminated with protective component (94) mutually, protective component (94) are fixed in mount pad (93), anti-skidding backing plate (95) are being connected in mount pad (93), arc cover is buckled (92) and is installed at protective component (94).

5. The portable air detector according to claim 4, wherein: mount pad (93) comprise stainless steel waterproof board (931), cushion (932), shock pad (933), dust screen (934), install in cushion (932) bottom stainless steel waterproof board (931), shock pad (933) top is equipped with dust screen (934).

6. The portable air detector according to claim 4, wherein: the protection component (94) comprises a magnetic attraction plate (941), an anti-collision buffer plate (942) and a pressing piece (943), the magnetic attraction plate (941) and the anti-collision buffer plate (942) are overlapped, and the anti-collision buffer plate (942) is arranged on the pressing piece (943).

7. The portable air detector according to claim 6, wherein: magnetism suction disc (941) is by magnetic sleeve (9411), draw magnetic sheet (9412), sucking disc (9413), base (9414) and constitutes, magnetic sleeve (9411) is equipped with sucking disc (9413), it connects at base (9414) to draw magnetic sheet (9412).

8. The portable air detector according to claim 6, wherein: the pressing piece (943) is composed of a fixed flitch (9431), a pressing rod (9432) and a pressing pad (9433), the fixed flitch (9431) is provided with the pressing rod (9432), and the top of the pressing rod (9432) is connected with the pressing pad (9433).