TWI540277B - Gate valve with linkage structure - Google Patents

Gate valve with linkage structure Download PDF

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Publication number
TWI540277B
TWI540277B TW104100415A TW104100415A TWI540277B TW I540277 B TWI540277 B TW I540277B TW 104100415 A TW104100415 A TW 104100415A TW 104100415 A TW104100415 A TW 104100415A TW I540277 B TWI540277 B TW I540277B
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TW
Taiwan
Prior art keywords
shutter
valve
main
open end
airtight
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TW104100415A
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Chinese (zh)
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TW201625865A (en
Inventor
楊力權
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新萊應材科技有限公司
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Priority to TW104100415A priority Critical patent/TWI540277B/en
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Publication of TWI540277B publication Critical patent/TWI540277B/en
Publication of TW201625865A publication Critical patent/TW201625865A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
    • F16K3/182—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of toggle links
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)
  • Details Of Valves (AREA)

Description

連桿閘板閥Connecting rod gate valve

本發明係與閥門之密閉結構有關，更詳而言之，乃特指一種利用連桿驅動，使氣密閘板與閥口可確實密封之真空閥門。 The invention relates to the hermetic structure of the valve, and more particularly to a vacuum valve which is driven by a connecting rod so that the airtight shutter and the valve port can be reliably sealed.

一種如中華民國第1316997號發明專利第1a、1b及1c圖所顯示的真空閘閥。該真空閘閥係利用一控制元件(如液壓及轉動單元等)，使閥桿能沿兩個自由度活動，俾使閥板除了能沿閥桿軸線(平行於閥口方向)線性移動以遮蔽於閥口處，並能往一垂直於閥口的方向位移。藉以使得閥板位移到閥口處時，該閥板可額外產生一密合於閥口之力量，以確保閥板與閥口之氣密效果。 A vacuum gate valve as shown in Figures 1a, 1b and 1c of the invention patent No. 1316997 of the Republic of China. The vacuum gate valve utilizes a control element (such as a hydraulic pressure and a rotating unit, etc.) to enable the valve stem to move along two degrees of freedom, so that the valve plate can move linearly along the stem axis (parallel to the valve port direction) to shield At the valve port, it can be displaced in a direction perpendicular to the valve port. In order to displace the valve plate to the valve port, the valve plate can additionally generate a force close to the valve port to ensure the airtight effect of the valve plate and the valve port.

然而，此種先前技術大多需要於液壓缸處設置滑軌等位移軌跡控制機構，針對不同樣式或不同尺寸之真空閘閥，皆需各別精密計算閥板及閥口尺寸、位置等條件，才能使閥板位移到閥口處時，同時蓋緊於閥口處，否則仍會發生閥板無法密合之缺陷，如閥板未與閥口平行蓋合，造成部分氣密度不足。此外，長久使用後控制元件也易出現磨損、精度誤差之問題，而控制元件大多位於真空閘閥內部深處，拆解維修亦不方便。 However, most of the prior art requires a displacement track control mechanism such as a slide rail at the hydraulic cylinder. For different styles or different sizes of vacuum gate valves, it is necessary to accurately calculate the valve plate and the size and position of the valve port, etc., in order to When the valve plate is displaced to the valve port, it is tightly closed at the valve port. Otherwise, the valve plate may not be in close contact with each other. For example, the valve plate is not covered with the valve port in parallel, resulting in insufficient air density. In addition, after long-term use, the control components are also prone to wear and precision errors, and the control components are mostly located deep inside the vacuum gate valve, which is inconvenient to disassemble and repair.

本發明為解決上述習用技術產生之缺失與不便之處，提出一種連桿閘板閥的方案，該方案之連桿閘板閥可於閘板組軸向位移至與閥口對準之位置後，利用連桿作用進一步使閘板組之氣密閘板往垂直於閥口之方向位移，俾以使氣密閘板確實蓋緊於閥口處。 In order to solve the defects and inconveniences caused by the above-mentioned conventional techniques, the present invention proposes a scheme of a link gate valve, which can be axially displaced to a position aligned with the valve port after the gate block is axially displaced. The connecting rod is further used to further displace the airtight shutter of the shutter group in a direction perpendicular to the valve port, so that the airtight shutter is indeed tightly closed at the valve opening.

本發明提供一種連桿閘板閥，包含：至少一動力缸，其係具有一可軸向移動之驅動軸；一中空之閥體，其一端係為一開放端，該開放端設有一頂蓋，另一端則設有一可供動力缸裝設之動力缸座，該動力缸座上並貫穿設有一軸孔，該軸孔俾可供該驅動軸穿伸入該閥體內；其中，該閥體側邊接近開放端處設有至少一閥口；一設於該閥體內之閘板組，其具有兩相鄰設置之一主閘板及一氣密閘板，該主閘板係連接於該驅動軸之端部處；其中，該主閘板與氣密閘板之端部間係以至少一平行連桿連接；至少一壓動桿，其一端係樞接於該氣密閘板之端部處，另一端係往該頂蓋方向延伸以形成一壓動端，其中，該壓動桿中段處係樞接有一連動桿，該連動桿另一端係樞接於該主閘板端部處。 The present invention provides a link gate valve comprising: at least one power cylinder having an axially movable drive shaft; a hollow valve body having an open end at one end and a top cover at the open end The other end is provided with a power cylinder seat for the power cylinder, and the power cylinder block is provided with a shaft hole through which the shaft hole can be inserted into the valve body; wherein the valve body At least one valve port is disposed near the open end of the side; a shutter group disposed in the valve body has two adjacent main gates and an airtight shutter, and the main gate is connected to the drive An end of the shaft; wherein the main gate and the end of the airtight shutter are connected by at least one parallel link; at least one pressing rod is pivotally connected to the end of the airtight shutter The other end extends toward the top cover to form a pressing end, wherein the middle portion of the pressing rod is pivotally connected with a linkage rod, and the other end of the linkage rod is pivotally connected to the end of the main shutter.

本發明之主要目的係在於：該閘板組可受驅動軸帶動產生軸向位移，當閘板組位移至與閥口對準之位置後，該壓動桿之壓動端受到擋止壓動，並藉由壓動桿、連動桿與平行連桿之連桿作用，驅動氣密閘板與主閘板遠離，並往閥口方向靠緊，俾使氣密閘板可確實蓋緊於閥口處。 The main purpose of the present invention is that the ram group can be axially displaced by the driving shaft, and when the ram group is displaced to the position aligned with the valve port, the pressing end of the pressing rod is blocked and pressed. And by actuating the connecting rod of the pressing rod, the linkage rod and the parallel connecting rod, driving the airtight shutter to be away from the main gate and abutting against the valve port, so that the airtight shutter can be surely closed to the valve At the mouth.

本發明之次要目的係在於：本發明具有維修簡單方便迅速之優點，維修時只需將頂蓋打開，將閘板組與驅動軸間固定用之螺栓卸下，即可將整組閘板組取出維修或更換，可大幅減少機器停工維修之時間。 The secondary object of the present invention is that the invention has the advantages of simple and convenient maintenance, and only needs to open the top cover during maintenance, and remove the bolt for fixing between the ram group and the drive shaft, so that the whole group of rams can be removed. The group can be repaired or replaced, which can greatly reduce the time for machine shutdown maintenance.

本發明之另一次要目的係在於：該閥體於該開放端處設有至少一擋止件，該擋止件係對準於壓動桿之壓動端處，當閘板組位移至與閥口對準之位置時，該壓動端係與擋止件發生抵觸以驅動氣密閘板動作，由擋止件承受壓動桿之反作用力，強化整體結構強度，且該擋止件具有易於維修更換之優點。 Another secondary object of the present invention is that the valve body is provided with at least one stopper at the open end, and the stopper is aligned with the pressing end of the pressing rod, when the shutter group is displaced to When the valve port is aligned, the pressing end is in contact with the stopping member to drive the airtight shutter, and the blocking member receives the reaction force of the pressing rod to strengthen the overall structural strength, and the stopping member has Easy to repair and replace.

本發明之再一次要目的係在於：該主閘板上貫穿設有至少一開槽，該開槽內軸設有一滾動軸承，且該滾動軸承之至少一部分係突出於主閘板相鄰氣密閘板側之表面，再者，該氣密閘板上並凹設有可供該滾動軸承容置之頂抵槽。當氣密閘板動作時，該等滾動軸承與頂抵槽配合得以分散氣密閘板所受之反作用力，防止氣密閘板彎曲變形、增加產品可靠度及使用壽命。 A further object of the present invention is to provide at least one slot through the main gate, the slotted inner shaft is provided with a rolling bearing, and at least a part of the rolling bearing protrudes from the adjacent airtight shutter of the main gate The surface of the side, in addition, the airtight shutter is recessed with a top abutting groove for receiving the rolling bearing. When the airtight shutter is actuated, the rolling bearing cooperates with the top abutting groove to disperse the reaction force of the airtight shutter, prevent the airtight shutter from being bent and deformed, and increase product reliability and service life.

10‧‧‧動力缸 10‧‧‧Power cylinder

11‧‧‧驅動軸 11‧‧‧Drive shaft

20‧‧‧閥體 20‧‧‧ valve body

21‧‧‧開放端 21‧‧‧ open end

22‧‧‧頂蓋 22‧‧‧Top cover

23‧‧‧動力缸座 23‧‧‧Power cylinder block

24‧‧‧軸孔 24‧‧‧Axis hole

25‧‧‧閥口 25‧‧‧ valve port

26‧‧‧開放口 26‧‧‧Open mouth

30‧‧‧閘板組 30‧‧‧ ram group

31‧‧‧主閘板 31‧‧‧Main gate

311‧‧‧螺栓 311‧‧‧ bolt

32‧‧‧氣密閘板 32‧‧‧Airtight shutter

33‧‧‧平行連桿 33‧‧‧Parallel link

34‧‧‧開槽 34‧‧‧ slotting

35‧‧‧滾動軸承 35‧‧‧ rolling bearings

351‧‧‧軸 351‧‧‧Axis

36‧‧‧頂抵槽 36‧‧‧Top abutment

361‧‧‧第一段 361‧‧‧ first paragraph

362‧‧‧第二段 362‧‧‧second paragraph

37‧‧‧彈簧件 37‧‧‧Spring parts

40‧‧‧壓動桿 40‧‧‧pressure rod

41‧‧‧壓動端 41‧‧‧pressure end

42‧‧‧連動桿 42‧‧‧ linkage rod

441‧‧‧軸承件 441‧‧‧ bearing parts

A‧‧‧樞接點 A‧‧‧ pivot point

50‧‧‧擋止件 50‧‧‧stops

51‧‧‧圓弧孔 51‧‧‧ arc hole

52‧‧‧卡固端 52‧‧‧Kartian

53‧‧‧定位槽 53‧‧‧ positioning slot

[圖1]係為本發明之立體外觀組合圖。 Fig. 1 is a perspective view of a three-dimensional appearance of the present invention.

[圖2]係為本發明之局部立體外觀分解圖(一)。 Fig. 2 is a partial perspective exploded view (I) of the present invention.

[圖3]係為本發明之局部立體外觀分解圖(二)。 Fig. 3 is a partial perspective exploded view (2) of the present invention.

[圖4]係為本發明擋止件之組裝動作示意圖。 Fig. 4 is a schematic view showing the assembly operation of the stopper of the present invention.

[圖5]係為本發明之局部剖面示意圖。 Fig. 5 is a partial cross-sectional view showing the present invention.

[圖6]係為本發明之局部剖面動作示意圖(一)。 Fig. 6 is a partial cross-sectional view (I) of the present invention.

[圖7]係為本發明之局部剖面動作示意圖(二)。 Fig. 7 is a partial cross-sectional view (2) of the present invention.

[圖8]係為本發明滾動軸承之剖面動作示意圖(一)。 Fig. 8 is a schematic cross-sectional view (1) of the rolling bearing of the present invention.

[圖9]係為本發明滾動軸承之剖面動作示意圖(二)。 9 is a schematic cross-sectional view of a rolling bearing of the present invention (2).

為便於說明本發明於上述發明內容一欄中所表示的中心思想，茲以具體實施例表達。實施例中各種不同物件係按適於說明之比例、尺寸、變形量或位移量而描繪，而非按實際元件的比例予以繪製，合先敘明。且以下的說明中，類似的元件是以相同的編號來表示。 For the convenience of the description, the central idea expressed by the present invention in the column of the above summary of the invention is expressed by the specific embodiments. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above. In the following description, like elements are denoted by the same reference numerals.

如圖1~圖4所示，本發明一種連桿閘板閥，包含： As shown in FIG. 1 to FIG. 4, a link gate valve of the present invention comprises:

至少一動力缸10，其係具有一可軸向移動之驅動軸11。 At least one power cylinder 10 has an axially movable drive shaft 11.

一中空之閥體20，其一端係為一開放端21，該開放端21設有一頂蓋22，另一端則設有一可供動力缸10裝設之動力缸座23，該動力缸座23上並貫穿設有一軸孔24，該軸孔24俾可供該驅動軸11穿伸入該閥體20內；其中，該閥體20側邊接近開放端21處設有至少一閥口25，而該閥體20於閥口25之相對側則設有一開放口26。 A hollow valve body 20 has an open end 21 at one end, a top cover 22 at the open end 21, and a power cylinder block 23 for the power cylinder 10 mounted on the other end. And a shaft hole 24 is formed through the shaft hole 24, and the driving shaft 11 is inserted into the valve body 20; wherein the valve body 20 is provided with at least one valve port 25 near the open end 21, and The valve body 20 is provided with an opening 26 on the opposite side of the valve port 25.

一設於該閥體20內之閘板組30，其具有兩相鄰設置之一主閘板31及一氣密閘板32，該主閘板31係以一螺栓311鎖設連接於該驅動軸11之端部處；其中，該主閘板31與氣密閘板32之端部間係以至少一平行連桿33連接，較佳地實施例中，該主閘板31與氣密閘板32之兩端部間係各以二平行連桿33連接，且該主閘板31、二平行連桿33與氣密閘板32間係形成一四連桿機構，更佳地實施例中，該四連桿機構為平行四邊形連桿機構。 A shutter assembly 30 disposed in the valve body 20 has two adjacent main gates 31 and an airtight shutter 32. The main shutter 31 is locked and coupled to the drive shaft by a bolt 311. The end of the main gate 31 and the end of the airtight shutter 32 are connected by at least one parallel link 33. In the preferred embodiment, the main shutter 31 and the airtight shutter The two ends of the 32 are connected by two parallel links 33, and a four-bar linkage mechanism is formed between the main shutter 31, the two parallel links 33 and the airtight shutter 32. In a preferred embodiment, The four-bar linkage mechanism is a parallelogram linkage mechanism.

該主閘板31於兩端間之位置處貫穿設有至少一開槽34，該開槽34內以一軸351穿設有一滾動軸承35，且該滾動軸承35之至少一部分係突出於主閘板31相鄰氣密閘板32側之表面，再者，該氣密閘板32上並凹設有可供該滾動軸承35容置之頂抵槽36，該頂抵槽36並具有一第一段361及一第二段362，該第一段361之深度係大於該第二段362(如圖3及圖8所示)，且該第二段362係位於頂抵槽36接近開放端21之一端。 The main gate 31 is provided with at least one slot 34 at a position between the two ends. A rolling bearing 35 is disposed in the slot 34 by a shaft 351, and at least a portion of the rolling bearing 35 protrudes from the main gate 31. a surface of the side of the airtight shutter 32. Further, the airtight shutter 32 is recessed with an abutting groove 36 for receiving the rolling bearing 35. The top abutting groove 36 has a first segment 361 and A second segment 362 has a depth greater than the second segment 362 (shown in FIGS. 3 and 8) and the second segment 362 is located at one end of the top abutment slot 36 near the open end 21.

至少一壓動桿40，其一端係樞接於該氣密閘板32之端部處，另一端係往該頂蓋22方向延伸以形成一壓動端41，且該壓動端41處係設有一軸承件411。其中，該壓動桿40中段處係樞接有一連動桿42，該連動桿42另一端係樞接於該主閘板31端部處。再者，如圖3所示，該連動桿42係由與主閘板31樞接端往相反於氣密閘板32側延伸，且該壓動桿40係概呈一L型桿狀。較佳地實施例中，該閘板組30兩端各設有一壓動桿40。 At least one pressing rod 40 is pivotally connected at one end of the airtight shutter 32, and the other end extends toward the top cover 22 to form a pressing end 41, and the pressing end 41 is A bearing member 411 is provided. The interlocking rod 42 is pivotally connected to the middle portion of the pressing rod 40, and the other end of the connecting rod 42 is pivotally connected to the end of the main shutter 31. Furthermore, as shown in FIG. 3, the interlocking lever 42 extends from the pivotal end of the main shutter 31 to the side of the airtight shutter 32, and the pressing lever 40 has an L-shaped rod shape. In a preferred embodiment, a pressure bar 40 is disposed at each end of the shutter assembly 30.

再者，該閥體20於該開放端21處設有至少一擋止件50。該閥體20於該開放端21之二內壁處對應該擋止件50設有二對稱設置之圓弧孔51，且該擋止件50兩端係為圓弧狀端部。其中，該擋止件50之長度係大於該開放端21之開口寬度，藉此，如圖4所示，該擋止件50係以斜向方向置入開放端21內，並以圖示箭頭方向旋轉擋止件50，使擋止件50兩端旋入圓弧孔51。再者，如圖2所示，該擋止件50相對於該頂蓋22側凸設有一卡固端52，且該頂蓋22內側凹設有可供卡固端52容置之定位槽53，藉此，當頂蓋22鎖固於開放端21處後(如圖5所示)，該定位槽53可固定擋止件50之位置，防止擋止件50脫出圓弧孔51。 Furthermore, the valve body 20 is provided with at least one stop 50 at the open end 21 . The valve body 20 is provided with two arc holes 51 symmetrically disposed at the inner wall of the open end 21 corresponding to the blocking member 50, and the ends of the blocking member 50 are arc-shaped ends. Wherein, the length of the stopper 50 is greater than the opening width of the open end 21, whereby the stopper 50 is placed in the open end 21 in an oblique direction as shown in FIG. The stopper 50 is rotated in the direction, and both ends of the stopper 50 are screwed into the circular arc hole 51. In addition, as shown in FIG. 2, the blocking member 50 has a locking end 52 protruding from the side of the top cover 22, and a positioning groove 53 for receiving the locking end 52 is recessed on the inner side of the top cover 22. Thereby, when the top cover 22 is locked at the open end 21 (as shown in FIG. 5), the positioning groove 53 can fix the position of the stopper 50 to prevent the stopper 50 from coming out of the circular arc hole 51.

其中，該主閘板31與氣密閘板32之間進一步設有至少一彈簧件37，如圖3所示該彈簧件37一端係連接於滾動軸承35之軸351上，另一端則鎖固於氣密閘板32，俾供以使主閘板31與氣密閘板32常態靠緊之彈性力量。較佳地實施例中，該閘板組30以驅動軸11中心，於兩側各設有一滾動軸承35、一頂抵槽36，而每一軸351上設有二彈簧件37。 Further, at least one spring member 37 is further disposed between the main shutter 31 and the airtight shutter 32. As shown in FIG. 3, one end of the spring member 37 is coupled to the shaft 351 of the rolling bearing 35, and the other end is locked. The airtight shutter 32 is provided with an elastic force for bringing the main shutter 31 and the airtight shutter 32 into a normal state. In a preferred embodiment, the ram group 30 is centered on the drive shaft 11 and has a rolling bearing 35 and a top abutting groove 36 on each side, and each of the shafts 351 is provided with two spring members 37.

明瞭上述本案詳細結構後，以下係針對本案之動作原理逐一詳細說明： After clarifying the detailed structure of the above case, the following is a detailed explanation of the action principle of the case:

當閥口25開啟時，該閘板組30係位於閥體20內部遠離開放端21之一端，該氣密閘板32係位於靠緊主閘板31之位置(如圖5所示)，同時該滾動軸承35係位於頂抵槽36深度較深之第一段361。 When the valve port 25 is opened, the shutter group 30 is located at one end of the valve body 20 away from the open end 21, and the airtight shutter 32 is located at a position close to the main shutter 31 (as shown in FIG. 5). The rolling bearing 35 is located in a first section 361 having a deeper abutment groove 36.

當閥口25欲關閉時，該動力缸10之驅動軸11可帶動閘板組30沿驅動軸11軸向，亦即平行於閥口25之方向，往開放端21方向移動(如圖6所示)。當閘板組30接近於對準閥口25之位置時，壓動端41之軸承件411會先與擋止件50接觸，而隨著驅動軸11的持續動作，該擋止件50會對壓動端41施加一反向之作用力而壓動該壓動桿40。其中，由於該連動桿42與主閘板31樞接點(圖示樞接點A)為固定軸心，當壓動桿40之壓動端41受力壓動時，該連動桿42受驅動以樞接點A為軸心，以圖示逆時針方向產生擺動，而使壓動桿40推動氣密閘板32往遠離主閘板31之方向位移，進而使氣密閘板32往閥口25方向靠緊位移，直到氣密閘板32確實地緊密封閉該閥口25(如圖7所示)。 When the valve port 25 is to be closed, the drive shaft 11 of the power cylinder 10 can drive the ram group 30 along the axial direction of the drive shaft 11, that is, parallel to the valve port 25, and move toward the open end 21 (as shown in FIG. 6). Show). When the ram group 30 is close to the position of the aligning valve port 25, the bearing member 411 of the pressing end 41 will first contact the stopper 50, and as the driving shaft 11 continues to move, the stopper 50 will The pressing end 41 applies a reverse force to press the pressing rod 40. Wherein, since the pivoting point of the linkage rod 42 and the main shutter 31 (the pivot point A shown) is a fixed axis, when the pressing end 41 of the pressing rod 40 is pressed, the linkage rod 42 is driven. Taking the pivot point A as the axis, the swing is generated in the counterclockwise direction, and the pressing rod 40 pushes the airtight shutter 32 to move away from the main shutter 31, thereby making the airtight shutter 32 to the valve port. The 25 direction is abutted until the airtight shutter 32 positively closes the valve port 25 (as shown in Figure 7).

同時，由於該主閘板31、二平行連桿33與氣密閘板32間係形成平行四邊形連桿機構，當壓動桿40推動氣密閘板32移動時，可確保氣密閘板32上下端係平均地位移，以使氣密閘板32能均勻地靠緊於閥口25，避免有部分施力不均而發生氣密度不足的情形。 At the same time, since the main gate 31, the two parallel links 33 and the airtight shutter 32 form a parallelogram linkage mechanism, when the pressure lever 40 pushes the airtight shutter 32 to move, the airtight shutter 32 can be ensured. The upper and lower ends are evenly displaced so that the airtight shutter 32 can evenly abut against the valve port 25, thereby avoiding a situation in which the air density is insufficient due to uneven application of the force.

再者，如圖8及圖9所示，當氣密閘板32動作時，該等滾動軸承35會隨著位移至頂抵槽36之第二段362，且由於第二段362之深度設計能使氣密閘板32遠離主閘板31時，滾動軸承35仍能抵緊於氣密閘板32。藉此，當本發明連桿閘板閥之尺寸較大時，可設置多組滾動軸承35與頂抵槽36，藉以分散氣密閘板32所受之反作用力，防止氣密閘板32彎曲變形，確保氣密閘板32與閥口25之氣密度，並增加產品可靠度及使用壽命。 Furthermore, as shown in FIGS. 8 and 9, when the airtight shutter 32 is actuated, the rolling bearing 35 will be displaced to the second section 362 of the top abutment groove 36, and the depth of the second section 362 can be designed. When the airtight shutter 32 is moved away from the main shutter 31, the rolling bearing 35 can still abut against the airtight shutter 32. Therefore, when the size of the connecting rod gate valve of the present invention is large, a plurality of sets of rolling bearings 35 and abutting grooves 36 can be disposed, thereby dispersing the reaction force of the airtight shutter 32, and preventing the airtight shutter 32 from being bent and deformed. The air density of the airtight shutter 32 and the valve port 25 is ensured, and the reliability and service life of the product are increased.

反之，當本發明欲反向動作開啟閥口25時，只需以動力缸10帶動驅動軸11及閘板組30下降，隨著壓動端41之軸承件411與擋止件50逐漸分離，該等彈簧件37可藉由彈性恢復之力量，使主閘板31與氣密閘板32回復靠緊狀態，即可使氣密閘板32與閥口25分離，並開啟閥口25。 On the other hand, when the present invention is to reversely actuate the valve opening 25, the drive shaft 11 and the shutter assembly 30 are only driven down by the power cylinder 10, and the bearing member 411 and the stopper 50 are gradually separated from the stopper end 50. The spring members 37 can return the airtight shutter 32 to the valve port 25 by opening the valve port 25 by restoring the main shutter 31 and the airtight shutter 32 by the elastic recovery force.

此外，本發明與習用技術相較下更具有維修簡單方便迅速之優點，維修時只需將頂蓋22打開，將閘板組30與驅動軸11間固定用之螺栓311卸下，即可將整組閘板組30取出維修或整組更換，可大幅減少機器停工維修之時間。 In addition, the invention has the advantages of simple, convenient and rapid maintenance compared with the conventional technology, and only needs to open the top cover 22 during maintenance, and remove the bolt 311 for fixing between the ram group 30 and the drive shaft 11 to be removed. The entire group of rams 30 can be taken out for maintenance or the entire group can be replaced, which can greatly reduce the time for machine shutdown and maintenance.

由以上詳細說明，可使熟知本項技藝者明瞭本發明確實與習用之技術截然不同，具有相當之新穎性。且本發明具有習用技術所無法預期的功效，實已符合專利核准之積極要件，爰依法提出專利申請。 From the above detailed description, it will be apparent to those skilled in the art that the present invention is indeed distinct from the conventional technology and is quite novel. Moreover, the invention has the unpredictable effects of the conventional technology, and has already met the positive requirements of patent approval, and has filed a patent application according to law.

雖本發明是以一較佳實施例作說明，但精於此技藝者能在不脫離本發明精神與範疇下作各種不同形式的改變。以上所舉實施例僅用以說明本發明而已，非用以限制本發明之範圍。舉凡不違本發明精神所從事的種種修改或變化，俱屬本發明意欲保護之範疇。 While the invention has been described in terms of a preferred embodiment, the various modifications may be The above embodiments are merely illustrative of the invention and are not intended to limit the scope of the invention. Any modifications or variations that are made without departing from the spirit of the invention are intended to be protected.

10‧‧‧動力缸 10‧‧‧Power cylinder

11‧‧‧驅動軸 11‧‧‧Drive shaft

20‧‧‧閥體 20‧‧‧ valve body

26‧‧‧開放口 26‧‧‧Open mouth

30‧‧‧閘板組 30‧‧‧ ram group

Claims (7)

一種連桿閘板閥，包含：至少一動力缸，其係具有一可軸向移動之驅動軸；一中空之閥體，其一端係為一開放端，該開放端設有一頂蓋，該頂蓋內側設有一定位槽，另一端則設有一可供動力缸裝設之動力缸座，該動力缸座上並貫穿設有一軸孔，該軸孔俾可供該驅動軸穿伸入該閥體內；其中，該閥體側邊接近開放端處設有至少一閥口，該閥體於該開放端處更設有至少一擋止件，該至少一擋止件相對於該頂蓋側凸設有一卡固端，用以容置於該定位槽；一設於該閥體內之閘板組，其具有兩相鄰設置之一主閘板及一氣密閘板，該主閘板係連接於該驅動軸之端部處；其中，該主閘板與氣密閘板之端部間係以至少一平行連桿連接；至少一壓動桿，其一端係樞接於該氣密閘板之端部處，另一端係往該頂蓋方向延伸以形成一壓動端，其中，該壓動桿中段處係樞接有一連動桿，該連動桿另一端係樞接於該主閘板端部處。 A link gate valve comprises: at least one power cylinder having an axially movable drive shaft; a hollow valve body having an open end at one end and a top cover at the open end The inner side of the cover is provided with a positioning groove, and the other end is provided with a power cylinder seat for the power cylinder. The power cylinder block is provided with a shaft hole through which the shaft hole can be inserted into the valve body. At least one valve port is disposed at a side of the valve body near the open end, and the valve body is further provided with at least one stopping member at the open end, and the at least one stopping member is convexly disposed with respect to the side of the top cover a card solid end for receiving the positioning slot; a shutter group disposed in the valve body, having two adjacent main gates and an airtight shutter, the main gate is connected to the The end of the drive shaft; wherein the main gate and the end of the airtight shutter are connected by at least one parallel link; at least one of the pressing rods is pivotally connected to the end of the airtight shutter At the other end, the other end extends toward the top cover to form a pressing end, wherein the middle portion of the pressing rod is pivotally connected Linkage rod, the other end of the linking rod is pivotally connected to the main portion of the shutter end. 如請求項1所述之連桿閘板閥，其中，該壓動端處係設有一軸承件。 The link gate valve of claim 1, wherein a bearing member is disposed at the pressing end. 如請求項1所述之連桿閘板閥，其中，該閥體於該開放端之內壁處對應該擋止件設有二圓弧孔，且該擋止件兩端係為圓弧狀端部。 The link gate valve of claim 1, wherein the valve body is provided with two circular arc holes corresponding to the inner wall of the open end, and the two ends of the stop are arc-shaped. Ends. 如請求項1所述之連桿閘板閥，其中，該擋止件之長度係大於該開放端之開口寬度。 The link gate valve of claim 1, wherein the length of the stopper is greater than the opening width of the open end. 如請求項1所述之連桿閘板閥，其中，該主閘板上貫穿設有至少一開槽，該開槽內軸設有一滾動軸承，且該滾動軸承之至少一部分係突出於主閘 板相鄰氣密閘板側之表面，再者，該氣密閘板上並凹設有可供該滾動軸承容置之頂抵槽。 The link gate valve of claim 1, wherein the main gate is provided with at least one slot, the slot inner shaft is provided with a rolling bearing, and at least a part of the rolling bearing protrudes from the main gate The plate is adjacent to the surface of the airtight shutter side, and further, the airtight shutter plate is recessed with an abutting groove for receiving the rolling bearing. 如請求項5所述之連桿閘板閥，其中，該頂抵槽並具有一第一段及一第二段，該第一段之深度係大於第二段，且該第二段係位於頂抵槽接近開放端之一端。 The link gate valve of claim 5, wherein the top abutment groove has a first segment and a second segment, the first segment has a depth greater than the second segment, and the second segment is located The top abutment groove is near one end of the open end. 如請求項1所述之連桿閘板閥，其中，該主閘板與氣密閘板之間設有至少一彈簧件。The link gate valve of claim 1, wherein at least one spring member is disposed between the main shutter and the airtight shutter.
TW104100415A 2015-01-07 2015-01-07 Gate valve with linkage structure TWI540277B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112112993A (en) * 2019-06-19 2020-12-22 Smc株式会社 Structure for attaching valve plate to valve stem in gate valve, and gate valve having the structure

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Publication number Priority date Publication date Assignee Title
CN111089187B (en) * 2018-10-23 2021-10-29 日扬科技股份有限公司 Flap conveying valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112112993A (en) * 2019-06-19 2020-12-22 Smc株式会社 Structure for attaching valve plate to valve stem in gate valve, and gate valve having the structure
CN112112993B (en) * 2019-06-19 2023-12-12 Smc株式会社 Gate valve

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