Chlorine discharge valve capable of being adjusted accurately

Abstract

The utility model relates to the technical field of circuit board manufacturing, in particular to a chlorine discharge valve accurate in adjustment. According to the technical scheme, anti-disengaging connectors are arranged at the two ends of a valve body, a valve element is arranged in the valve body, a connecting column is connected to the valve element, a worm gear is connected to the end, located on the outer side of the valve body, of the connecting column, a worm is rotationally installed on the valve body through a support, and the worm and the worm gear are in meshing transmission. One end of the worm is connected with a shifting wheel, the worm is driven by the shifting wheel to drive the worm gear, and the valve element is driven by the worm gear to be opened and closed. According to the utility model, through the transmission mechanism of the worm gear and the worm and the clamping matching of the clamping disc, the precise control of the chlorine emission is realized. The working principle is simple and clear, the operation is convenient and flexible, and the reliability and the safety are high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board manufacturing, specifically relates to a chlorine discharge valve of accurate regulation. BACKGROUND

[0002] Circuit board chlorine etching is an important link in the manufacturing process of printed circuit board (PCB), and the basic principle of etching is to use the oxidation-reduction reaction between etching liquid and metal foil to etch the unprotected metal part. In chlorine etching, copper chloride is usually used as etchant. Copper chloride etching liquid has the advantages of simple formula, fast etching speed, high copper dissolution amount, good stability, reliable product quality, renewable solution, easy copper recovery and relatively small environmental pollution. In the circuit board acidic etching liquid recycling and reuse equipment, the flow control of chlorine gas is crucial. As the key gas in the etching process, the stability of the flow of chlorine gas directly affects the uniformity, efficiency of etching and the quality of the final product. At the same time, the excessive discharge of chlorine gas may also pollute the environment, so its flow must be strictly controlled.

[0003] After searching, the patent with patent announcement number CN201720333340.5 discloses a kind of circuit board acidic etching liquid recycling and reuse equipment, although the device is used by being provided with electrolytic reaction tank, electrolytic reaction tank is divided into electrolytic anode area and electrolytic cathode area, ion membrane reaction chamber is arranged in electrolytic anode area;The input end of electrolytic reaction tank is connected with transfer circulating device, the output end of electrolytic reaction tank is connected with chlorine recovery device, and the regenerated chlorine gas of chlorine recovery device is transported to production line through transfer circulating device, but the device cannot accurately control the flow of chlorine gas when being used.The instability of chlorine flow will lead to the change of etching rate, thereby affecting the uniformity of etching. In circuit board manufacturing, uniform etching is the key to ensure the accuracy and quality of circuit pattern. The lack of chlorine flow may lead to incomplete etching, while excessive flow may over-etch, even damage the circuit board. The instability of chlorine flow will increase the uncertainty in the production process, and frequent adjustment of equipment parameters is needed to maintain stable etching effect, thereby reducing production efficiency. And frequent parameter adjustment may also increase the difficulty and cost of operation. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a chlorine discharge valve of accurate regulation, which solves the problems raised in the background art.

[0005] The utility model solves the above technical problems by the following scheme:

[0006] A chlorine discharge valve of accurate regulation, comprising a valve body, the valve body is provided with an anti-dropping connector at both ends, a valve core is arranged in the valve body, a flow channel is formed in the valve core, and a connecting column is connected to the valve core.

[0007] The connecting column is connected with a worm wheel at one end outside the valve body, the outer surface of the valve body is provided with a support, the worm wheel is rotatably installed on the valve body through the support, the worm wheel is in meshing transmission with the worm wheel, one end of the worm wheel is connected with a dial wheel, the worm wheel is driven by the dial wheel to drive the worm wheel, and the valve core is opened and closed by the worm wheel.

[0008] The inside of the dial wheel is provided with an accommodating cavity, one side surface of the accommodating cavity is provided with a second protruding block and a second recess, the worm wheel is connected with a connecting rod, the worm wheel is connected with a clamping disc through the connecting rod, the clamping disc is provided with a first protruding block and a first recess, the clamping disc is clamped and matched with the second recess and the second protruding block through the first protruding block and the first recess, and then the dial wheel drives the worm wheel to rotate.

[0009] On the basis of the above technical scheme, the utility model further can make improvement as follows.

[0010] Further, the outer surface of the anti-dropping connector is provided with a stepped barb, and the valve body is inserted into the air pipe through the anti-dropping connector.

[0011] The beneficial effects of the above further scheme are:

[0012] The stepped barb design enhances the connection strength between the anti-dropping connector and the air pipe, effectively prevents the connection from loosening or falling off due to gas pressure fluctuation or external factors, and thus ensures the stability and safety of the chlorine discharge valve.

[0013] Further, the depth of the accommodating cavity is twice the thickness of the clamping disc, and the first protruding block and the first recess of the clamping disc are freely clamped and engaged or separated from the second recess and the second protruding block of the dial wheel.

[0014] The beneficial effects of the above further scheme are:

[0015] The depth design of the accommodating cavity allows the clamping disc to have sufficient moving space inside the dial wheel, facilitating the clamping and engaging or separating operation between the first protruding block and the first recess and the second recess and the second protruding block. This design not only improves the flexibility of operation, but also ensures the stability and reliability of the clamping structure.

[0016] Further, the clamping disc is provided with an accommodating groove, a spring is installed in the accommodating groove, and the spring is located between the clamping disc and the dial wheel, supporting the dial wheel and the clamping disc to separate.

[0017] The beneficial effects of the above further scheme are:

[0018] The addition of the spring provides a buffer and separation force between the dial wheel and the clamping disc, allowing the dial wheel to easily separate from the clamping disc when clamping is not required, avoiding damage to the clamping structure caused by misoperation or external force.

[0019] Further, when the dial wheel is engaged to drive the clamping disc, the dial wheel is pushed to compress the spring, and then the second protrusion and the second groove are engaged with the first groove and the first protrusion.

[0020] The beneficial effects of the above further scheme are:

[0021] This operation method is simple and intuitive, and the user only needs to push the dial wheel to achieve the engagement of the clamping structure, without complex operation steps or tools. At the same time, due to the elastic force of the spring, the dial wheel can automatically find and clamp to the correct position during the pushing process, thereby improving the accuracy and efficiency of the operation.

[0022] The utility model provides a kind of chlorine discharge valve of accurate adjustment. With following beneficial effects:

[0023] The anti-dropping connector provided at both ends of the valve body has a stepped barb on its outer surface, which ensures stable insertion between the valve and the gas pipe and effectively prevents falling caused by gas pressure or external factors, improving the reliability of the connection.

[0024] Through the engagement transmission of the worm and the worm wheel, accurate control of the opening and closing of the valve core is realized. Worm and worm wheel transmission has self-locking property, so that the stable position of the valve core can be maintained even without external force, thereby ensuring accurate adjustment of chlorine discharge.

[0025] The design of the dial wheel makes the operation more intuitive and convenient. Users only need to perform a simple dialing action to control the valve. At the same time, the clamping design between the dial wheel and the clamping disc allows quick and accurate engagement when needed, improving the flexibility of the operation.

[0026] The addition of the spring provides a buffer and separation force between the dial wheel and the clamping disc, which not only helps to protect the transmission components from excessive impact, but also improves the safety performance of the valve to some extent.

[0027] By adjusting the transmission ratio of the worm and the worm wheel, further adjustment of the opening and closing speed and accuracy of the valve can be realized, thereby meeting the needs of different application scenarios. This strong adaptability makes the valve have a wide application prospect in the field of chlorine discharge control. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0029] In the drawings:

[0030] Figure 1 It is a front view appearance schematic diagram of the present application;

[0031] Figure 2 It is a rear view appearance schematic diagram of the present application;

[0032] Figure 3 It is a sectional view structure schematic diagram of the present application;

[0033] Figure 4 It is a sectional view structure schematic diagram of the present application;

[0034] Figure 5 It is a schematic diagram of the internal structure of the present application.

[0035] In the drawings, the component list represented by each mark is as follows:

[0036] 1, the driving wheel; 101, the accommodating cavity; 102, the second protruding block; 103, the second recess; 2, the worm; 201, the accommodating groove; 202, the connecting rod; 203, the clamping disc; 204, the first protruding block; 205, the first recess; 206, the spring; 3, the support; 4, the worm gear; 5, the anti-dropping connector; 6, the valve body; 7, the connecting column; 8, the valve core; 801, the flow passage. DETAILED DESCRIPTION

[0037] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] Please refer to Figures 1 to 5 The embodiments provided by the present application:

[0039] Embodiment one

[0040] The application discloses a precise chlorine discharge valve, which comprises a valve body 6, the two ends of the valve body 6 are provided with anti-dropping connectors 5, the outer surfaces of the anti-dropping connectors 5 are provided with stepped barbs, the valve body 6 is inserted into a gas pipe through the anti-dropping connectors 5, the stepped barbs enhance the connection strength between the anti-dropping connectors 5 and the gas pipe, effectively prevent the connection from loosening or falling off due to gas pressure fluctuation or external factors, and thus the stability and safety of the chlorine discharge valve are ensured, the valve body 6 is internally provided with a valve core 8, the valve core 8 is provided with a flow channel 801, the valve core 8 is connected with a connecting column 7, one end of the connecting column 7 located at the outer side of the valve body 6 is connected with a worm wheel 4, the outer surface of the valve body 6 is provided with a support 3, the valve body 6 is rotatably installed with a worm 2 through the support 3, the worm 2 is in meshing transmission with the worm wheel 4, one end of the worm 2 is connected with a driving wheel 1, the worm 2 is driven by the driving wheel 1 to drive the worm wheel 4, and the valve core 8 is opened and closed by the worm wheel 4.

[0041] Example two

[0042] In order to facilitate the precise control of the opening degree of the valve core 8, for example, Figures 1 to 5As shown, the utility model also includes: the inside of the knob wheel 1 is provided with containing cavity 101, one side surface of containing cavity 101 is equipped with second lug 102 and second recess 103, the connecting rod 202 is connected with worm 2, and worm 2 is connected with clamping disc 203 through connecting rod 202, the depth of containing cavity 101 is two times of the thickness of clamping disc 203, the first lug 204 and the first recess 205 of clamping disc 203 are free from the second recess 103 and the second lug 102 of knob wheel 1 Clamping engagement or separation, the depth of containing cavity 101 is designed so that clamping disc 203 has enough moving space inside knob wheel 1, and the clamping engagement or separation operation between the first lug 204 and the first recess 205 and the second recess 103 and the second lug 102 is convenient. This design not only improves the flexibility of operation, but also ensures the stability and reliability of the clamping structure, the containing groove 201 is formed in clamping disc 203, the spring 206 is installed in containing groove 201, the spring 206 is located between clamping disc 203 and knob wheel 1, knob wheel 1 is separated from clamping disc 203 by spring 206, the spring 206 provides a buffer and separation force between knob wheel 1 and clamping disc 203, so that knob wheel 1 can be easily separated from clamping disc 203 when clamping is not needed, and the clamping structure is prevented from being damaged due to misoperation or external force. When it is needed to engage and drive clamping disc 203 by knob wheel 1, knob wheel 1 is pushed to compress spring 206, and then second lug 102 and second recess 103 are clamped and engaged with first recess 205 and first lug 204. This operation mode is simple and intuitive, and the user only needs to push knob wheel 1 to realize the engagement of the clamping structure without complex operation steps or tools. At the same time, due to the elastic force of spring 206, knob wheel 1 can automatically find and clamp to the correct position during the pushing process, thereby improving the accuracy and efficiency of operation. First lug 204 and first recess 205 are arranged on clamping disc 203, clamping disc 203 is clamped and matched with second recess 103 and second lug 102 through first lug 204 and first recess 205, and then knob wheel 1 drives worm 2 to rotate.

[0043] Working principle:

[0044] The valve is in the closed state, the flow passage 801 on the valve core 8 is completely closed, and the chlorine gas cannot pass through. The knob wheel 1 and the clamping disc 203 are kept separated by the spring 206, and the second lug 102 and the second recess 103 are not clamped and engaged with the first recess 205 and the first lug 204 at this time.

[0045] When the valve needs to be opened, the user pushes the actuating wheel 1, compressing the spring 206. As the actuating wheel 1 moves, the second protrusion 102 and the second groove 103 gradually approach and engage with the first groove 205 and the first protrusion 204. Once engaged, the rotation of the actuating wheel 1 drives the worm 2 to rotate. The worm 2 meshes with the worm wheel 4, and the rotation of the worm wheel 4 drives the connecting column 7 and the valve core 8 to rotate. As the valve core 8 rotates, the flow channel 801 gradually opens, and chlorine gas begins to be discharged through the valve.

[0046] During valve opening, the user can adjust the opening degree of valve core 8 by continuously rotating the actuating wheel 1, thereby precisely controlling the amount of chlorine emitted. The transmission ratio of worm gear 4 and worm 2 ensures the accuracy and stability of the adjustment.

[0047] When the valve needs to be closed, the user rotates the actuating wheel 1 in the reverse direction. The rotation of the actuating wheel 1 drives the worm gear 2 to rotate in the reverse direction, which in turn drives the worm wheel 4 and the valve core 8 to rotate in the reverse direction. As the valve core 8 rotates, the flow channel 801 gradually closes, and the chlorine gas emission stops.

[0048] After opening or closing the valve, the user can release the pressure on the actuating wheel 1, allowing the spring 206 to return to its original position. The elastic force of the spring 206 separates the actuating wheel 1 from the locking plate 203, preparing for the next operation.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precise chlorine discharge valve, comprising a valve body (6), the valve body (6) is provided with anti-disengagement connector (5) at both ends, the valve body (6) is provided with valve core (8), the valve core (8) is provided with flow channel (801), the valve core (8) is connected with connecting column (7), characterized in that: the connecting column (7) is connected with worm wheel (4) at one end outside the valve body (6), the outer surface of the valve body (6) is provided with bracket (3), the valve body (6) is rotatably installed with worm (2) through bracket (3), the worm (2) is engaged with worm wheel (4) for transmission, one end of the worm (2) is connected with the knob wheel (1), the knob wheel (1) drives the worm (2) to drive the worm wheel (4), and the valve core (8) is opened and closed through the worm wheel (4); the inside of the knob wheel (1) is provided with accommodating cavity (101), one side surface of the accommodating cavity (101) is provided with second protrusion (102) and second recess (103), the worm (2) is connected with connecting rod (202), and the worm (2) is connected with clamping disc (203) through connecting rod (202), the clamping disc (203) is provided with first protrusion (204) and first recess (205), the clamping disc (203) is clamped and matched with the second recess (103) and the second protrusion (102) through the first protrusion (204) and the first recess (205), so as to make the knob wheel (1) drive the worm (2) to rotate.

2. The precision modulating chlorine discharge valve of claim 1, wherein: The outer surface of the anti-disengagement connector (5) is provided with stepped barb, the valve body (6) is inserted with the air pipe through the anti-disengagement connector (5).

3. The precision modulating chlorine discharge valve of claim 1, wherein: The depth of the accommodating cavity (101) is twice the thickness of the clamping disc (203), the first protrusion (204) and the first recess (205) of the clamping disc (203) are free to be clamped and engaged or separated from the second recess (103) and the second protrusion (102) of the knob wheel (1).

4. The precision modulating chlorine discharge valve of claim 1, wherein: The clamping disc (203) is provided with accommodating groove (201), the spring (206) is installed in the accommodating groove (201), the spring (206) is located between the clamping disc (203) and the knob wheel (1), the knob wheel (1) is separated from the clamping disc (203) by the spring (206).

5. The precision modulating chlorine discharge valve of claim 1, wherein: When the clamping disc (203) needs to be driven by engaging the knob wheel (1), the knob wheel (1) is pushed to compress the spring (206), so that the second protrusion (102) and the second recess (103) are clamped and engaged with the first recess (205) and the first protrusion (204).

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