TWM625055U - Trace plunger pump structure allowing quantitation adjustment - Google Patents
Trace plunger pump structure allowing quantitation adjustment Download PDFInfo
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Abstract
一種可調定量之微量柱塞泵結構，包括一雙動氣缸、一分厘卡頭、一 閥體、一入料接頭及一出料接頭。其中該雙動氣缸設有一陶瓷柱塞棒，經一氣壓源驅動後而可往復伸縮，該分厘卡頭套設於該雙動氣缸後端，其內部設有一頂桿以調整該陶瓷柱塞棒的行程，該閥體套接於該雙動氣缸前端，其內部對應該陶瓷柱塞棒而設有一陶瓷軸套及一高壓軸封，以避免該陶瓷柱塞棒卡住或微量洩漏等問題，另該閥體表面分別設有一入料接頭及一出料接頭，並分別設有一第一止回閥及一第二止回閥，其特殊設計能夠減少閥室內的無效空間而避免氣泡堆積，故能精確控制微量出料。 An adjustable quantitative micro-piston pump structure, including a double-acting cylinder, a centimeter head, a A valve body, an inlet connector and an outlet connector. The double-action cylinder is provided with a ceramic plunger rod, which can be reciprocating and retracted after being driven by a pneumatic source. The valve body is sleeved on the front end of the double-acting cylinder, and a ceramic shaft sleeve and a high-pressure shaft seal are arranged inside the valve body corresponding to the ceramic plunger rod to avoid problems such as the ceramic plunger rod being stuck or a small amount of leakage. In addition, the surface of the valve body is respectively provided with a feeding joint and a discharging joint, and is also provided with a first check valve and a second check valve respectively. Its special design can reduce the invalid space in the valve chamber and avoid the accumulation of air bubbles, so It can precisely control the micro discharge.
Description
本創作係屬於流體控制閥的領域，特別是關於一種可調定量之微量柱塞泵結構，俾於入料處設有一第一止回閥使用低彈力彈簧及可加壓入料而可避免入料時產生氣泡，並且在一個閥體內設置一陶瓷軸套及一高壓軸封，而能使一雙動氣缸之一陶瓷柱塞棒卡住或微量洩漏等問題，在第二止回閥處使用高彈力彈簧使在用壓力供料時止回閥也不會打開而洩漏，除非柱塞泵加壓時產生的高壓才會打開，復透過一分厘卡頭調整該陶瓷柱塞棒的行程而精確控制微量出料者。 The present invention belongs to the field of fluid control valves, and in particular relates to a structure of a micro-piston pump with an adjustable quantity, so that a first check valve is provided at the feeding place, using a low-elastic spring and can be pressurized to feed the material to avoid entering the material. Air bubbles are generated during feeding, and a ceramic shaft sleeve and a high-pressure shaft seal are arranged in a valve body, which can cause a ceramic plunger rod of a double-acting cylinder to be stuck or a small amount of leakage occurs. It is used at the second check valve. The high elastic spring prevents the check valve from opening and leaking when the material is supplied with pressure, unless the high pressure generated by the plunger pump will open, and then adjust the stroke of the ceramic plunger rod through a centimeter head. Precise control of micro-dischargers.
按，隨著科技的發展，電子產品越來越輕薄，其生產時所要求的精密度也相對提高。因此，針對電子產品進行封裝的工作也變的更加重要，目前業界係採用自動化生產設備來進行，一般來說這種自動化生產設備稱作自動點膠機，其可透過控制一點膠閥來精確地調整點膠量，並控制將膠體以點滴或塗覆等方式封裝於電子產品的表面，如此一來，大幅降低了人力資源的使用，並可有效提升封裝效率及品質。 Press, with the development of science and technology, electronic products are getting thinner and lighter, and the precision required for their production is also relatively improved. Therefore, the packaging of electronic products has also become more important. At present, the industry uses automated production equipment. Generally speaking, this automated production equipment is called an automatic glue dispenser, which can accurately control a point of glue valve. Adjust the amount of glue dispensed, and control the glue to be packaged on the surface of electronic products by dripping or coating. In this way, the use of human resources is greatly reduced, and the packaging efficiency and quality can be effectively improved.
由於點膠的技術也隨著電子產品的輕薄化，加上電子元件的體積也大幅縮小，因而對於點膠的要求也更為精確，因此，精密點膠技術不僅僅可應用面板產業，同時也可以使用於各種需要黏合的產品上，隨著點膠技術的精確性的提升，目前的應用領域也日漸廣泛。但是，現階段自動點膠機仍存 在下列問題：一、入料時的氣泡殘留造成精確度降低，由於入料空間係為固定，因此，膠體會被殘留氣泡佔用部分空間而降低了膠體量，當活塞以固定行程推送入料時，膠體量不足就會影響到點膠的精確度使得封裝作業失敗；二、作動活塞磨損後所產生的間隙，使得潤滑用油脂會滲入膠體內而造成污染，影響封裝作業及封裝體的使用壽命；三、入料時的止回閥因使用橡膠製成的氣密膠圈，容易被流體或溶劑腐蝕，造成膠體洩漏回流使出膠量減少，影響封裝前後的入膠量；四、對應不同膠體或流體，必須搭配使用多種型式及材質的止回閥膠圈以避免被腐蝕，才能避免洩漏所造成的誤差，因而必須經常更換不同的止回閥，耗時耗力；五、傳統點膠機所使用的控制閥所使用的橡膠軸套或膠圈無法承受柱塞泵加壓時產生的高壓膠體，因而會使橡膠軸套或膠圈破損的問題。綜合以上問題，點膠機出膠的穩定性有助於提升電子產品的品質，因此，如何能提高點膠機的精確性與可靠性，是各家廠商亟欲改善點膠機效能之目的者。 Since the dispensing technology has also become lighter and thinner with electronic products, and the volume of electronic components has also been greatly reduced, the requirements for dispensing are also more accurate. Therefore, precision dispensing technology can not only be applied to the panel industry, but also It can be used on various products that need to be bonded. With the improvement of the accuracy of dispensing technology, the current application fields are also becoming more and more extensive. However, at this stage, the automatic glue dispenser still exists In the following problems: 1. The residual air bubbles during feeding will reduce the accuracy. Since the feeding space is fixed, the colloid will be occupied by the remaining air bubbles and reduce the amount of colloid. When the piston pushes the feeding material with a fixed stroke , the insufficient amount of colloid will affect the accuracy of dispensing and lead to the failure of the packaging operation; 2. The gap generated by the wear of the actuating piston will cause the lubricating grease to penetrate into the colloid and cause pollution, affecting the packaging operation and the service life of the packaging body. 3. The check valve is easily corroded by fluid or solvent due to the use of air-tight rubber rings during feeding, resulting in leakage and backflow of the colloid, which reduces the amount of glue and affects the amount of glue before and after packaging; 4. Corresponding to different For colloids or fluids, various types and materials of check valve rubber rings must be used to avoid corrosion and errors caused by leakage. Therefore, different check valves must be replaced frequently, which is time-consuming and labor-intensive; 5. Traditional dispensing The rubber bushing or rubber ring used in the control valve used in the machine cannot withstand the high pressure colloid generated when the plunger pump is pressurized, so the rubber bushing or rubber ring will be damaged. Based on the above problems, the stability of the glue dispenser can help improve the quality of electronic products. Therefore, how to improve the accuracy and reliability of the glue dispenser is the purpose of various manufacturers to improve the performance of the glue dispenser. .
有鑑於此，本創作人設計出一種可調定量之微量柱塞泵結構，俾於入料處設有一第一止回閥，其設計採用了能夠耐腐蝕的圓球搭配漏斗型低彈力彈簧的結構也可以加壓入料，因而可避免入料時產生氣泡；並且，其閥體採用了陶瓷軸套及高壓軸封，而能使一雙動氣缸之一陶瓷柱塞棒不會卡住，或因無法承受高壓而產生的微量洩漏等問題；再者，復透過一分厘卡頭調整該陶瓷柱塞棒的行程而能精確控制微量出料，據而大幅提昇點膠機的生產品質者。 In view of this, the creator has designed a micro-piston pump structure with adjustable quantity, so that a first check valve is arranged at the feeding place, and the design adopts a corrosion-resistant ball and a funnel-type low-elasticity spring. The structure can also be pressurized to feed the material, so it can avoid bubbles when feeding; and the valve body adopts a ceramic shaft sleeve and a high-pressure shaft seal, so that one of the ceramic plunger rods of a double-acting cylinder will not be stuck. Or the problem of trace leakage caused by the inability to withstand high pressure; moreover, by adjusting the stroke of the ceramic plunger rod through a centimeter head, it can accurately control the trace discharge, thereby greatly improving the production quality of the dispensing machine. .
是故，本創作之一目的，旨在提供一種可調定量之微量柱塞泵結構，俾包括一雙動氣缸、一分厘卡頭、一閥體、一入料接頭及一出料接頭，透過入料接頭之止回閥設計，以及使用陶瓷軸套及高壓軸封，以及特殊的高精度微調分厘卡頭，而製作出可適用於如：水、溶劑、潤滑油、環氧樹脂、油墨甚至是高黏度油脂等流體的柱塞泵結構，避免陶瓷柱塞棒卡住或微量洩漏等問題，並精確控制微量出料及減少入料時產生氣泡的問題，還能可隨著增壓方式提高輸出壓力，更加適合用在各種嚴苛的使用環境下，大幅提升點膠效率及品質等功效。 Therefore, one of the objectives of this creation is to provide an adjustable quantitative micro-piston pump structure, which includes a double-acting cylinder, a centimeter chuck, a valve body, a feeding joint and a discharging joint, Through the design of the check valve of the feeding joint, the use of ceramic shaft sleeves and high-pressure shaft seals, and special high-precision fine-tuning centimeter chucks, it can be used for water, solvent, lubricating oil, epoxy resin, The structure of the plunger pump for fluids such as ink and even high-viscosity grease can avoid the problems of ceramic plunger sticking or micro leakage, and accurately control the micro-discharge and reduce the problem of air bubbles when feeding. Increase the output pressure, more suitable for use in various harsh environments, and greatly improve the dispensing efficiency and quality.
為達上述目的，本創作之可調定量之微量柱塞泵結構，其包括：一雙動氣缸，其內部設有一活塞，以及該活塞一端連接設有一陶瓷柱塞棒，且該雙動氣缸上並排間隔設置有二調速器分別連接至一氣壓源，用以帶動該活塞於該雙動氣缸內往復移動，使該陶瓷柱塞棒產生往復伸縮的動作，另該雙動氣缸後端設有一氣缸後蓋，該氣缸後蓋中心對應該活塞而設有一固定孔；一分厘卡頭，設於該固定孔內，且該分厘卡頭中心設有一頂桿而與外部之一旋轉調整部相連接，經旋動後，該頂桿可調整該活塞的移動行程，藉以改變該陶瓷柱塞棒的伸縮行程；一閥體，套接於該雙動氣缸前端，且該閥體之軸方向係對應該陶瓷柱塞棒而設有一推進室，並於該推進室內裝設一陶瓷軸套及一高壓軸封，使該陶瓷柱塞棒活動穿設於該陶瓷軸套及該高壓軸封內，且該推進室對應於該閥體二端分別形成一流體出口及一套接部，並沿著該推進室的徑方向設有一流體入口，使該流體入口與該推進室相連通；一入料接頭，設於該流體入口，且該入料接頭內部設有一入料流道，以及於該入料流道鄰接該流體入口處設有一第一止回閥，當由該入料接頭注入一流體後防止該流體逆流；及一出料接頭，設於該流體出口，且該出料接頭內部設有一出料流道，以及於該出料流道鄰接該流體出口處設有一第二止回閥；據此，當 該雙動氣缸作動時，該陶瓷柱塞棒可伸出推動由該入料接頭注入之該流體，使其朝向該出料接頭送出，並藉由該第二止回閥防止該流體逆流，盡量減少第一止回閥及該第二止回閥之閥室內的無效空間，避免氣泡堆積於閥室內的死角內導致入料時的膠量減少的問題，即使有氣泡進入閥室內的空間也能迅速的排出進而能精確控制微量出料。 In order to achieve the above-mentioned purpose, the structure of the micro-piston pump with adjustable quantity of the present creation includes: a double-acting cylinder with a piston inside, and a ceramic plunger rod connected to one end of the piston, and the double-acting cylinder Two speed regulators are arranged side by side and are respectively connected to an air pressure source to drive the piston to reciprocate in the double-action cylinder, so that the ceramic plunger rod can reciprocate and expand. In addition, the rear end of the double-action cylinder is provided with a Cylinder rear cover, the center of the cylinder rear cover is provided with a fixing hole corresponding to the piston; a centimeter head is arranged in the fixing hole, and the center of the centimeter head is provided with a push rod and an external rotation adjustment part connected, after being rotated, the mandrel can adjust the movement stroke of the piston, thereby changing the telescopic stroke of the ceramic plunger rod; a valve body is sleeved on the front end of the double-action cylinder, and the axial direction of the valve body is A propelling chamber is arranged corresponding to the ceramic plunger rod, and a ceramic shaft sleeve and a high-pressure shaft seal are installed in the propelling chamber, so that the ceramic plunger rod can be movably passed through the ceramic shaft sleeve and the high-pressure shaft seal , and the propulsion chamber is corresponding to the two ends of the valve body to form a fluid outlet and a socket, and a fluid inlet is provided along the radial direction of the propulsion chamber, so that the fluid inlet is communicated with the propulsion chamber; A material joint is arranged at the fluid inlet, and an inlet flow channel is arranged inside the inlet joint, and a first check valve is arranged at the inlet flow channel adjacent to the fluid inlet. After the fluid, the backflow of the fluid is prevented; and a discharge joint is arranged at the fluid outlet, and a discharge flow channel is arranged inside the discharge joint, and a second check is arranged at the discharge flow channel adjacent to the fluid outlet valve; accordingly, when When the double-action cylinder is actuated, the ceramic plunger rod can be extended to push the fluid injected from the feed joint to send it out toward the discharge joint, and the second check valve can prevent the fluid from flowing backwards, as far as possible. Reduce the invalid space in the valve chamber of the first check valve and the second check valve, and avoid the problem of air bubbles accumulating in the dead space of the valve chamber, which reduces the amount of glue when feeding, even if there are air bubbles entering the space in the valve chamber Rapid discharge and precise control of micro discharge.
於一實施例中，本創作之該該第一止回閥係由一第一圓球及一第一彈簧所組成，以及該第二止回閥係由一第二圓球及一第二彈簧所組成，且該第一彈簧及該第二彈簧係呈漏斗型，二端分別對應該第一圓球及該第二圓球而呈現杯口狀，以及其中央分別具有一第一頸縮部及一第二頸縮部，藉由該第一彈簧及該第二彈簧之回復彈力，分別推動該第一圓球及該第二圓球去擋止該入料接頭及該出料接頭內部的流道，該第一彈簧及該第二彈簧；並且，該第一圓球及該第二圓球係選用：紅藍寶石、精密陶瓷或工業塑膠等材質之其中一種而製成，因而能夠抵抗各種流體或是溶劑的腐蝕。 In one embodiment, the first check valve of the present invention is composed of a first ball and a first spring, and the second check valve is composed of a second ball and a second spring The first spring and the second spring are in the shape of a funnel, the two ends are respectively corresponding to the first ball and the second ball and are in the shape of a cup mouth, and the center has a first necking portion respectively. and a second necking portion, through the restoring elastic force of the first spring and the second spring, respectively push the first ball and the second ball to stop the feed joint and the discharge joint inside The flow channel, the first spring and the second spring; and the first ball and the second ball are made of one of the materials such as ruby sapphire, precision ceramics or industrial plastics, so they can resist various Corrosion by fluids or solvents.
於另一實施例中，本創作之該可調定量之微量柱塞泵結構，更具有一固定架，設於該雙動氣缸表面，且該固定架上設有複數個固定孔，而可用來固定於任何自動化設備需要點膠的位置。 In another embodiment, the adjustable-quantity micro-piston pump structure of the present invention further includes a fixing frame disposed on the surface of the double-acting cylinder, and the fixing frame is provided with a plurality of fixing holes, which can be used for Fixed to any automated equipment where glue needs to be dispensed.
1:可調定量之微量柱塞泵結構 1: The structure of the micro plunger pump with adjustable quantity
11:雙動氣缸 11: Double-acting cylinder
111:活塞 111: Piston
112:陶瓷柱塞棒 112: Ceramic plunger rod
113:調速器 113: Governor
114:氣缸後蓋 114: Cylinder back cover
1141:固定孔 1141:Fixing hole
12:分厘卡頭 12: centimeter card head
121:頂桿 121: ejector
122:旋轉調整部 122: Rotation adjustment part
13:閥體 13: valve body
131:推進室 131: Propulsion Room
1311:陶瓷軸套 1311: Ceramic bushing
1312:高壓軸封 1312: High pressure shaft seal
132:流體出口 132: Fluid outlet
133:套接部 133: Socket
134:流體入口 134: Fluid inlet
14:入料接頭 14: Feeding connector
141:入料流道 141: Incoming runner
142:第一止回閥 142: The first check valve
1421:第一圓球 1421: The first sphere
1422:第一彈簧 1422: First Spring
14221:第一頸縮部 14221: First Neck
15:出料接頭 15: Outlet connector
151:出料流道 151: Outlet runner
152:第二止回閥 152: Second check valve
1521:第二圓球 1521: Second Sphere
1522:第二彈簧 1522: Second Spring
15221:第二頸縮部 15221: Second neck down
16:固定架 16: Fixed frame
161:固定孔 161:Fixing hole
圖1，為本創作較佳實施例的立體分解圖。 FIG. 1 is an exploded perspective view of a preferred embodiment of the present invention.
圖2，為本創作較佳實施例組裝後的剖視圖。 FIG. 2 is a cross-sectional view of a preferred embodiment of the present invention after assembly.
圖3，為本創作較佳實施例操作時的狀態示意圖(一)。 FIG. 3 is a schematic diagram (1) of the state during operation of the preferred embodiment of the present invention.
圖4，為本創作較佳實施例操作後的狀態示意圖(二)。 FIG. 4 is a schematic diagram (2) of the state after the operation of the preferred embodiment of the present invention.
為使 貴審查委員能清楚了解本創作之內容，僅以下列說明搭配圖式，敬請參閱。 In order for your reviewers to have a clear understanding of the content of this creation, please refer to the following descriptions and drawings.
請參閱圖1、圖2、圖3及圖4，係為本創作較佳實施例立體分解圖及其組裝後的剖視圖，以及進行操作時的各狀態示意圖。如以下各圖所示，於較佳實施例中，該可調定量之微量柱塞泵結構1係包括一雙動氣缸11、一分厘卡頭12、一閥體13、一入料接頭14及一出料接頭15。
Please refer to FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , which are an exploded perspective view of a preferred embodiment of the present invention, a cross-sectional view after assembly, and a schematic diagram of each state during operation. As shown in the following figures, in a preferred embodiment, the
其中，該雙動氣缸11之內部設有一活塞111，以及該活塞111一端連接設有一陶瓷柱塞棒112，且該雙動氣缸11上並排間隔設置有二調速器113分別連接至一氣壓源(圖中未顯示)，用以帶動該活塞111於該雙動氣缸11內往復移動，以連動該陶瓷柱塞棒112產生往復伸縮的動作；另外，該雙動氣缸11後端設有一氣缸後蓋114，該氣缸後蓋114中心對應該活塞111而設有一固定孔1141。
A
該分厘卡頭12設於該固定孔1141內，且該分厘卡頭12中心設有一頂桿121而與外部之一旋轉調整部122相連接，經旋動該旋轉調整部122之後，可驅動該頂桿121進行伸縮以調整該活塞111的移動行程，故能夠用來改變該陶瓷柱塞棒112的伸縮行程。
The
該閥體13係套接於該雙動氣缸11前端，且該閥體13之軸方向係對應該陶瓷柱塞棒112而設有一推進室131，並於該推進室131內裝設一陶瓷軸套1311及一高壓軸封1312，使該陶瓷柱塞棒112活動穿設於該陶瓷軸套1311及該高壓軸封1312內，且該推進室131對應於該閥體13二端分別形成一流體出
口132及一套接部133，並沿著該推進室131的徑方向設有一流體入口134，使該流體入口134與該推進室131相連通。
The
該入料接頭14設於該流體入口134，且該入料接頭14內部設有一入料流道141，以及於該入料流道141鄰接該流體入口134處設有一第一止回閥142，當由該入料接頭14注入一流體後防止該流體逆流。應注意的是，該第一止回閥142係由一第一圓球1421及一第一彈簧1422所組成，且該第一彈簧1422係呈漏斗型，二端分別對應該第一圓球1421而呈現杯口狀，以及其中央分別具有一第一頸縮部14221，藉由該第一彈簧1422之回復彈力，推動該第一圓球1421去擋止該入料接頭14之該入料流道141，且該第一圓球1421係選用：紅藍寶石、精密陶瓷或工業塑膠等材質之其中一種而製成。
The feed joint 14 is disposed at the
該出料接頭15設於該流體出口132，且該出料接頭15內部設有一出料流道151，以及於該出料流道151鄰接該流體出口處設有一第二止回閥152。應注意的是，本創作之該第二止回閥152係由一第二圓球1521及一第二彈簧1522所組成，且該第二彈簧1522係呈漏斗型，二端分別對應該第二圓球1521而呈現杯口狀，以及其中央分別具有一第二頸縮部15221，藉由該第二彈簧1522之回復彈力，推動該第二圓球1521去擋止該出料接頭15內部之該出料流道151，且該第二圓球1521係選用：紅藍寶石、精密陶瓷或工業塑膠等材質之其中一種而製成。
The outlet joint 15 is disposed at the
另外，本創作之該可調定量之微量柱塞泵結構1，更具有一固定架16，設於該雙動氣缸11表面，且該固定架16上設有複數個固定孔161。
In addition, the
據此，當該雙動氣缸11作動時，該陶瓷柱塞棒112可伸出推動由該入料接頭14注入之該流體，使其朝向該出料接頭15送出，並藉由該第一止回閥142及該第二止回閥152防止該流體逆流，透過該入料接頭14之第一止回閥142設計，以及使用該陶瓷軸套1311及該高壓軸封1312，以及特殊的高精度
微調之該分厘卡頭12，達到可適用於如：水、溶劑、潤滑油、環氧樹脂、油墨甚至是高黏度油脂等流體的柱塞泵結構，避免該陶瓷柱塞棒112卡住或微量洩漏等問題，並精確控制微量出料及減少入料時產生氣泡的問題，還能可隨著增壓方式提高輸出壓力，更加適合用在各種嚴苛的使用環境下，大幅提升點膠效率及品質等目的。
Accordingly, when the double-acting
唯，以上所述者，僅為本創作之較佳實施例而已，並非用以限定本創作實施之範圍，故該所屬技術領域中具有通常知識者，或是熟悉此技術所作出將各種元件進行等效替換，或是進行更多重串聯的變化者，在不脫離本創作之精神與範圍下所作之均等變化與修飾，皆應涵蓋於本創作之專利範圍內。 However, the above descriptions are only preferred embodiments of the present creation, and are not intended to limit the scope of the present creation. Therefore, those with ordinary knowledge in the technical field or familiar with the technology have made various components to perform Equivalent replacements, or more serialized changes, all equivalent changes and modifications made without departing from the spirit and scope of this creation shall be covered by the patent scope of this creation.
1:可調定量之微量柱塞泵結構 1: The structure of the micro plunger pump with adjustable quantity
11:雙動氣缸 11: Double-acting cylinder
111:活塞 111: Piston
112:陶瓷柱塞棒 112: Ceramic plunger rod
113:調速器 113: Governor
114:氣缸後蓋 114: Cylinder back cover
1141:固定孔 1141:Fixing hole
12:分厘卡頭 12: centimeter card head
121:頂桿 121: ejector
122:旋轉調整部 122: Rotation adjustment part
13:閥體 13: valve body
131:推進室 131: Propulsion Room
1311:陶瓷軸套 1311: Ceramic bushing
1312:高壓軸封 1312: High pressure shaft seal
132:流體出口 132: Fluid outlet
133:套接部 133: Socket
134:流體入口 134: Fluid inlet
14:入料接頭 14: Feeding connector
141:入料流道 141: Incoming runner
142:第一止回閥 142: The first check valve
1421:第一圓球 1421: The first sphere
1422:第一彈簧 1422: First Spring
14221:第一頸縮部 14221: First Neck
15:出料接頭 15: Outlet connector
151:出料流道 151: Outlet runner
152:第二止回閥 152: Second check valve
1521:第二圓球 1521: Second Sphere
1522:第二彈簧 1522: Second Spring
15221:第二頸縮部 15221: Second neck down
16:固定架 16: Fixed frame
161:固定孔 161:Fixing hole
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW110212058U TWM625055U (en) | 2021-10-14 | 2021-10-14 | Trace plunger pump structure allowing quantitation adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW110212058U TWM625055U (en) | 2021-10-14 | 2021-10-14 | Trace plunger pump structure allowing quantitation adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM625055U true TWM625055U (en) | 2022-04-01 |
Family
ID=82197691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW110212058U TWM625055U (en) | 2021-10-14 | 2021-10-14 | Trace plunger pump structure allowing quantitation adjustment |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM625055U (en) |
-
2021
- 2021-10-14 TW TW110212058U patent/TWM625055U/en unknown
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