A liquid metering gun

Abstract

This utility model relates to the field of metering gun technology and discloses a liquid metering gun, including a metering gun body, a flow meter mounted on the metering gun body, a gun barrel mounted on the output port of the metering gun body, a connecting component provided at the input port of the metering gun body, and a fixing component provided at the bottom of the metering gun body. The connecting component includes a connector fixedly connected to the input port of the metering gun body, a mounting groove provided at one end of the connector, an inlet pipe provided inside the mounting groove, a threaded groove provided on the surface of the connector, a nut threadedly connected to the surface of the threaded groove, and multiple rectangular grooves provided on the surface of the connector. This liquid metering gun allows for locking and unlocking of the inlet pipe by rotating the nut, requiring no additional tools. The operation is simple, significantly shortening the installation and replacement time of the inlet pipe, and is suitable for scenarios requiring frequent replacement of inlet pipes of different diameters.

Description

Technical Field

[0001] This utility model relates to the field of measuring gun technology, and in particular to a liquid measuring gun. Background Technology

[0002] In industrial production, commercial transactions, laboratory research and other scenarios, accurate measurement and delivery of liquids is one of the core requirements. A metering gun is a special tool that integrates liquid delivery and measurement functions. Through mechanical transmission, electronic sensing or fluid dynamics principles, it measures and displays the volume of liquid in real time while delivering it, so as to achieve accurate control and recording of liquid flow.

[0003] However, existing liquid metering guns have the following drawbacks: (1) It requires the use of wrenches and other tools to tighten multiple bolts. The installation or replacement of the water inlet pipe is complicated and time-consuming, especially in scenarios where the water inlet pipe needs to be replaced frequently, resulting in extremely low efficiency. (2) The fixed structure can only match workbenches or supports of specific sizes. If the work scene is changed, the original fixed device is difficult to use and needs to be customized, which increases the cost of use.

[0004] Therefore, this utility model provides a liquid metering gun. Utility Model Content

[0005] (a) Technical problems to be solved The problem solved by this utility model is to provide a liquid metering gun with high practicality, which solves the problems mentioned in the background art of cumbersome steps in installing or replacing the water inlet pipe and the inability to match only workbenches or brackets of specific sizes.

[0006] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: a liquid metering gun, including a metering gun body, a flow meter installed on the metering gun body, a gun barrel installed at the output port of the metering gun body, a connecting component provided at the input port of the metering gun body, and a fixing component provided at the bottom of the metering gun body; The connecting assembly includes a connector fixedly connected to the input port of the measuring gun body. One end of the connector has a mounting groove, and a water inlet pipe is provided inside the mounting groove. The surface of the connector has a threaded groove, and a nut is threadedly connected to the surface of the threaded groove. The surface of the connector has multiple rectangular grooves, and a clamping block is movably connected to the inner sidewall of the rectangular groove. A movable ring is provided inside the nut, and multiple top blocks are installed on one side of the movable ring. The inclined surface of the top block contacts the inclined surface of the clamping block. The fixing assembly includes a mounting base fixedly connected to the bottom of the measuring gun body. The mounting base has clamps on both sides, and telescopic rods are installed on opposite sides of the two clamps. The mounting base has circular grooves on both sides that are adapted to the telescopic rods. A limiting plate is installed at one end of the telescopic rod. A limiting groove adapted to the limiting plate is opened on the inner side wall of the circular groove. A spring is connected between one side of the limiting plate and the inner side wall of the limiting groove.

[0007] Optionally, a rectangular hole is provided on one side of the mounting base, and a gear is rotatably connected at the center of the rectangular hole. Two racks mesh with the surface of the gear. Connecting blocks are installed on the opposite sides of the two clamping plates. The far ends of the two racks are respectively fixedly connected to the opposite sides of the two connecting blocks. The meshing transmission between the gear and the two racks can ensure that when one clamping plate is pulled, the other clamping plate moves synchronously in the opposite direction, avoiding the imbalance of the spacing adjustment caused by the offset of one side of the clamping plate.

[0008] Optionally, a support tube is fixedly connected to the inner wall of the mounting groove. The surface of the support tube is in contact with the inner wall of the water inlet pipe. The support tube can help the water inlet pipe maintain a centered position, ensuring that the clamping force of the clamping block on the water inlet pipe is evenly distributed, and further improving the stability of the connection.

[0009] Optionally, limit blocks are fixedly connected to both sides of the clamping block, and a sliding groove adapted to the limit block is provided on the inner side wall of the rectangular groove. The limit block is slidably connected to the inside of the sliding groove, which can constrain the clamping block to move only radially along the rectangular groove, and prevent the clamping block from tilting laterally or falling out of the rectangular groove when squeezed by the top block.

[0010] Optionally, both clamps are fixedly connected to the anti-slip pad on opposite sides. The surface of the anti-slip pad is provided with V-shaped anti-slip texture. The anti-slip pad is made of flexible materials such as rubber, which can fit tightly against the surface of the fixed carrier. The V-shaped anti-slip texture on its surface can further increase the contact friction.

[0011] Optionally, a rubber pad is fixedly connected to the bottom of the clamping block. The rubber pad is arc-shaped and contacts the surface of the water inlet pipe, increasing the contact area and making the clamping force more evenly applied to the surface of the water inlet pipe, thereby enhancing friction and preventing it from falling off.

[0012] (III) Beneficial Effects This utility model provides a liquid metering gun, which has the following beneficial effects: 1. This liquid metering gun allows for locking and unlocking of the inlet pipe simply by rotating the nut, requiring no additional tools. The operation is simple and significantly reduces the installation and replacement time of the inlet pipe, making it suitable for scenarios where inlet pipes of different diameters need to be frequently replaced.

[0013] 2. This liquid metering gun adjusts the spacing by pulling the clamping plate, and the spring's rebound force automatically compensates for the clamping force. It can adapt to fixed carriers of different thicknesses and shapes, eliminating the need for customized fixing structures for specific carriers, thus enhancing the versatility of the metering gun in different working scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the measuring gun of this utility model; Figure 3 This is a schematic diagram of the connector structure of this utility model; Figure 4 This is a cross-sectional view of the mounting base of this utility model.

[0015] In the diagram: 1. Metering gun body; 101. Flow meter; 102. Gun barrel; 103. Water inlet pipe; 2. Connecting assembly; 201. Connector; 202. Nut; 203. Clamping block; 204. Movable ring; 205. Top block; 3. Fixing assembly; 301. Mounting base; 302. Clamping plate; 303. Telescopic rod; 304. Limiting plate; 305. Spring; 4. Gear; 5. Rack; 6. Connecting block; 7. Support pipe; 8. Limiting block; 9. Anti-slip pad; 10. Rubber pad. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] Please see Figures 1 to 4 This utility model provides a technical solution: a liquid metering gun, including a metering gun body 1, a flow meter 101 installed on the metering gun body 1 for real-time monitoring of the liquid flow through the gun body, and converting the liquid flow into a readable value through an internal sensor or mechanical structure to realize the metering function. The output port of the metering gun body 1 is equipped with a gun barrel 102, the input port of the metering gun body 1 is provided with a connecting component 2, and the bottom of the metering gun body 1 is provided with a fixing component 3. The connecting component 2 includes a connector 201 fixedly connected to the input port of the measuring gun body 1. One end of the connector 201 has an installation groove, and a water inlet pipe 103 is provided inside the installation groove. The surface of the connector 201 has a threaded groove, and a nut 202 is threadedly connected to the surface of the threaded groove. Axial movement is achieved by rotation, which drives the internal movable ring 204 and top block 205 to move. The surface of the connector 201 has multiple rectangular grooves, and a clamping block 203 is movably connected to the inner side wall of the rectangular groove. The nut 202 has a movable ring 204 inside, and multiple top blocks 205 are installed on one side of the movable ring 204. Under the push of the movable ring 204, pressure is applied to the clamping block 203, and the radial component of the inclined surface forces the clamping block 203 to retract inward. The inclined surface of the top block 205 contacts the inclined surface of the clamping block 203. The fixing component 3 includes a mounting base 301 fixedly connected to the bottom of the measuring gun body 1. The mounting base 301 has clamping plates 302 on both sides, which fix the measuring gun on the carrier by clamping inward. Telescopic rods 303 are installed on opposite sides of the two clamping plates 302. The mounting base 301 has circular grooves on both sides that are adapted to the telescopic rods 303. A limiting plate 304 is installed at one end of the telescopic rod 303. A limiting groove adapted to the limiting plate 304 is opened on the inner side wall of the circular groove. A spring 305 is connected between one side of the limiting plate 304 and the inner side wall of the limiting groove. A rectangular hole is provided on one side of the mounting base 301. A gear 4 is rotatably connected at the center of the rectangular hole. Two racks 5 mesh with the surface of the gear 4. Connecting blocks 6 are installed on the opposite sides of the two clamping plates 302. The far ends of the two racks 5 are fixedly connected to the opposite sides of the two connecting blocks 6. The meshing transmission between the gear 4 and the two racks 5 can ensure that when one clamping plate 302 is pulled, the other clamping plate 302 moves synchronously in the opposite direction, avoiding the imbalance of the spacing adjustment caused by the offset of one side of the clamping plate 302. A support tube 7 is fixedly connected to the inner wall of the mounting groove. The surface of the support tube 7 is in contact with the inner wall of the water inlet pipe 103. The support tube 7 can help the water inlet pipe 103 maintain a centered position, ensuring that the clamping force of the clamping block 203 on the water inlet pipe 103 is evenly distributed, and further improving the stability of the connection. Both sides of the clamping block 203 are fixedly connected to the limiting block 8. The inner side wall of the rectangular groove is provided with a sliding groove that matches the limiting block 8. The limiting block 8 is slidably connected inside the sliding groove, which can constrain the clamping block 203 to move only along the radial direction of the rectangular groove, and prevent the clamping block 203 from tilting laterally or falling out of the rectangular groove when squeezed by the top block 205. The two clamps 302 are fixedly connected to the anti-slip pad 9 on opposite sides. The surface of the anti-slip pad 9 is provided with V-shaped anti-slip texture. The anti-slip pad 9 is made of flexible materials such as rubber, which can fit tightly against the surface of the fixed carrier. The V-shaped anti-slip texture on its surface can further increase the contact friction. A rubber pad 10 is fixedly connected to the bottom of the clamping block 203. The rubber pad 10 is arc-shaped and contacts the surface of the water inlet pipe 103, increasing the contact area and making the clamping force more evenly applied to the surface of the water inlet pipe 103, which enhances the friction and prevents it from falling off.

[0018] In this invention, the working steps of the device are as follows: First step: With nut 202 in an unlocked state, the movable ring 204 and top block 205 do not apply pressure to clamp 203, and clamp 203 is in an open state within the rectangular groove. Insert the water inlet pipe 103 into the mounting groove of connector 201. At this time, the inner wall of water inlet pipe 103 is in contact with the surface of support pipe 7, and the outer wall of water inlet pipe 103 is in initial contact with the rubber pad 10 of clamp 203. Then rotate nut 202 so that nut 202 moves axially along connector 201 toward water inlet pipe 103. The movable ring 204 inside nut 202... As the nut 202 moves synchronously, the top block 205 moves closer to the clamping block 203. As the top block 205 continues to advance, a radial force is generated between the inclined surfaces, forcing the clamping block 203 to slide inward along the rectangular groove. The rubber pad 10 at the bottom fits tightly against the outer wall of the water inlet pipe 103. Through friction and squeezing, the water inlet pipe 103 is firmly fixed in the mounting groove. Continue to rotate the nut 202 until it can no longer be rotated. At this time, the squeezing force of the top block 205 on the clamping block 203 reaches the maximum, and the water inlet pipe 103 is completely locked, achieving a stable connection with the metering gun body 1. The second step: When the measuring gun needs to be fixed to the carrier, first pull the two clamping plates 302 to both sides. When the clamping plates 302 move, they drive the two racks 5 to move in opposite directions through the connecting block 6. The racks 5 mesh with the gear 4 to make them rotate synchronously. At the same time, the clamping plates 302 drive the telescopic rod 303 to stretch outward. The limiting plate 304 slides along the limiting groove and approaches the inner wall of the limiting groove. The spring 305 is compressed. At this time, the distance between the two clamping plates 302 increases, which can accommodate the carrier. Place the carrier to be fixed between the two clamping plates 302, and then release the clamping plates 302. The spring 305 releases its elastic potential energy and generates a rebound force to pull the limiting plate 304 away from the inner wall of the limiting groove, causing the telescopic rod 303 to retract. The telescopic rod 303 pushes the two clamping plates 302 to reset inward through the connecting block 6. The gear 4 rotates in response to the reverse movement of the rack 5 until the anti-slip pad 9 on the clamping plate 302 is in close contact with the surface of the carrier.

[0019] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0020] It will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid dosing lance comprising a dosing lance body (1), characterized in that: A flow meter (101) is installed on the metering gun body (1), a gun barrel (102) is installed at the output port of the metering gun body (1), a connecting component (2) is provided at the input port of the metering gun body (1), and a fixing component (3) is provided at the bottom of the metering gun body (1). The connecting assembly (2) includes a connector (201) fixedly connected to the input port of the measuring gun body (1). One end of the connector (201) is provided with an installation groove. A water inlet pipe (103) is provided inside the installation groove. A threaded groove is provided on the surface of the connector (201). A nut (202) is threadedly connected to the surface of the threaded groove. A plurality of rectangular grooves are provided on the surface of the connector (201). A clamping block (203) is movably connected to the inner side wall of the rectangular groove. A movable ring (204) is provided inside the nut (202). A plurality of top blocks (205) are installed on one side of the movable ring (204). The inclined surface of the top block (205) is in contact with the inclined surface of the clamping block (203). The fixing component (3) includes a mounting base (301) fixedly connected to the bottom of the measuring gun body (1). The mounting base (301) has clamps (302) on both sides. Telescopic rods (303) are installed on opposite sides of the two clamps (302). The mounting base (301) has circular grooves adapted to the telescopic rods (303) on both sides. A limiting plate (304) is installed at one end of the telescopic rod (303). A limiting groove adapted to the limiting plate (304) is opened on the inner side wall of the circular groove. A spring (305) is connected between one side of the limiting plate (304) and the inner side wall of the limiting groove.

2. A liquid dosing lance according to claim 1, characterized in that A rectangular hole is provided on one side of the mounting base (301), and a rotating connecting gear (4) is provided at the center of the rectangular hole. Two racks (5) mesh on the surface of the gear (4). Connecting blocks (6) are installed on the opposite sides of the two clamps (302). The ends of the two racks (5) that are far apart are respectively fixedly connected to the opposite sides of the two connecting blocks (6).

3. A liquid dosing lance according to claim 1, characterized in that: The inner wall of the mounting groove is fixedly connected to a support pipe (7), and the surface of the support pipe (7) is in contact with the inner wall of the water inlet pipe (103).

4. A liquid dosing gun according to claim 1, characterized in that: Both sides of the clamping block (203) are fixedly connected to limit blocks (8), and the inner sidewall of the rectangular groove is provided with a sliding groove that matches the limit block (8). The limit block (8) is slidably connected to the inside of the sliding groove.

5. A liquid dosing gun according to claim 1, characterized in that: The two clamps (302) are fixedly connected to the anti-slip pad (9) on opposite sides, and the surface of the anti-slip pad (9) is provided with V-shaped anti-slip texture.

6. A liquid dosing gun according to claim 1, characterized in that: A rubber pad (10) is fixedly connected to the bottom of the clamping block (203). The rubber pad (10) is arc-shaped and contacts the surface of the water inlet pipe (103).

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