A water meter manufacturing and assembly system and a water meter assembly method

Abstract

This invention discloses a water meter production and assembly system and a water meter assembly method. The water meter production and assembly system includes a water tank, an outer cover, a feeding trough, a push plate, and a support. The water tank is used to place the housing and is equipped with a water inlet pipe, a water outlet, and a plug. The outer cover is located above the water tank and can reciprocate relative to the water tank to form a seal. The feeding trough has multiple slots for placing water meter parts. The push plate is slidably connected to the feeding trough and can push the water meter parts in the feeding trough into the housing located in the water tank in sequence. The support is located above the water tank and can move relative to the water tank to press the water meter parts. Using this water meter production and assembly system, water meter assembly can be automated, eliminating the need for manual installation, avoiding water from wetting workers' clothes, reducing the difficulty of the work, saving manpower, and improving work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of water meter technology, specifically relating to a water meter production and assembly system and a water meter assembly method. Background Technology

[0002] Water meters are mandatory calibrated measuring instruments that directly affect the accuracy of water supply unit metering and settlement and consumer interests. Therefore, the quality requirements for water meters are very strict. With the continuous expansion of urban construction, the usage of water meters is increasing year by year, placing higher demands on water meter manufacturing. Currently, water meter assembly requires manual fixing of the meter casing, followed by water being introduced into the casing through the inlet and flowing out through the top hole. The movement is then installed into the casing, followed by the sealing element, and finally the glass casing is installed on top of the sealing element. The top cover is then screwed onto the casing to complete the assembly. However, the following problems exist in this assembly process:

[0003] 1. The assembly of water meters needs to be done manually, which is not only complicated but also consumes a lot of manpower, requires high workers' skills, and has low work efficiency.

[0004] 2. During the assembly of the water meter, water needs to be continuously supplied into the water meter housing, and the water must flow out through the opening at the top of the housing. However, after the mechanism is installed, due to the water flow, water will spray out from the gap between the mechanism and the housing, which will not only waste water but also wet the workers' clothes, causing considerable trouble for the assembly.

[0005] 3. During the assembly of the water meter, due to the water flow, the water flow will continuously push the movement upward as the parts are installed. This means that the worker must use one hand to press down the movement and the other hand to assemble the parts. This assembly method is not only inefficient, but also results in poor single-handed assembly, which will reduce the quality of the water meter. Summary of the Invention

[0006] To address the aforementioned problems, this invention proposes a water meter production and assembly system and a water meter assembly method to overcome or at least partially solve these problems.

[0007] The water meter production and assembly system includes a water tank, an outer cover, a feeding trough, a pusher plate, and a bracket. The water tank is used to place the housing and is equipped with an inlet pipe, an outlet, and a plug. The outer cover is located above the water tank and can reciprocate relative to the water tank to form a seal. The feeding trough has multiple slots for placing water meter parts. The pusher plate is slidably connected to the feeding trough and can push the water meter parts in the feeding trough into the housing located in the water tank in sequence. The bracket is located above the water tank and can move relative to the water tank to press the water meter parts.

[0008] Preferably, the water meter production and assembly system includes a first connecting rod, a second connecting rod, and a first spring; the first connecting rod is slidably connected to the water tank in a vertical direction, the upper end of the first connecting rod can contact the outer cover and be pushed into the water tank by the outer cover, the lower end of the first connecting rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to one end of the water inlet pipe located inside the water tank; the water inlet pipe is slidably connected to the water tank in a horizontal direction, and the first spring is located between the water tank and the water inlet pipe to drive the water inlet pipe to move to the outside of the water tank.

[0009] Preferably, the bracket is provided with a first leg, a second leg, a first telescopic rod, a third connecting rod, and a second spring; the first leg and the second leg are arranged parallel to each other in the vertical direction, the two ends of the third connecting rod are respectively rotatably connected to the first leg and the second leg, the two ends of the first telescopic rod are respectively rotatably connected to the first leg and the third connecting rod, and the first leg is slidably connected to the bracket in the vertical direction; the second spring is located between the bracket and the first leg to drive the first leg to move downward relative to the bracket.

[0010] Preferably, the water meter production and assembly system includes a tightening sleeve and a tightening motor; the tightening sleeve is located above the water tank, and a boss is provided at the lower end of the tightening sleeve, and the tightening sleeve can move relative to the water tank until the boss engages with the upper cover; the tightening motor is connected to the tightening sleeve and can drive the tightening sleeve to rotate.

[0011] Preferably, the water meter production and assembly system includes a second telescopic rod and a ring; the tightening sleeve is sleeved on the outside of the bracket, the ring is rotatably connected to the inner ring of the tightening sleeve, and the second telescopic rod is arranged vertically between the bracket and the ring to drive the tightening sleeve to reciprocate vertically relative to the bracket.

[0012] Preferably, the inner surface of the tightening sleeve is provided with internal teeth, the tightening motor is fixed on the bracket, and the output shaft of the tightening motor is provided with a gear, which meshes with the internal teeth of the tightening sleeve.

[0013] Preferably, the feeding trough is slidably connected to the outer cover in the horizontal direction, and a plurality of slots are arranged sequentially in the horizontal direction in the feeding trough, and each slot is provided with a push plate; the outer cover is provided with a window, and the feeding trough can reciprocate horizontally relative to the outer cover so that the plurality of slots are sequentially aligned with the window.

[0014] Preferably, the water meter production and assembly system includes a feeding spring, a feeding pin, a first slide groove, a second slide groove, and a third slide groove; the feeding spring is located between the feeding groove and the outer cover to drive the feeding groove to move upstream of the window; each push plate is provided with a feeding pin, which can slide relative to the first slide groove, the second slide groove, and the third slide groove respectively; the first slide groove is located upstream of the window, arranged along the direction of the multiple grooves distributed sequentially, and its end corresponds to the window; the third slide groove is located downstream of the window and is arranged parallel to the first slide groove; relative to the first slide groove and the third slide groove, one end of the second slide groove is located near the window, and the other end extends inclinedly downstream of the window to communicate with the third slide groove.

[0015] Preferably, the feeding pin is a combination of a pawl and a torsion spring; the pawl has an L-shaped structure, and its bent position is rotatably connected to the push plate via the torsion spring; the torsion spring can drive the pawl to rotate in the forward direction, and the push plate can limit the angle of the pawl's forward rotation; when the pawl moves towards the window with the push plate, the pawl overcomes the torsion spring and rotates in the opposite direction to leave the first slide groove; when the pawl moves away from the window with the push plate, the torsion spring drives the pawl to rotate in the forward direction and move sequentially along the second slide groove and the third slide groove.

[0016] A water meter assembly method, comprising assembling water meters using any one of the above-described water meter production and assembly systems, including the following specific steps:

[0017] Step S1, loading: Place the movement, seal, glass lens and top cover into the different slots of the loading trough in sequence, place the housing into the water tank, and use a plug to seal the right inlet of the housing;

[0018] Step S2, closing the outer cover: control the outer cover to move closer to the water tank and form a cover over the water tank, connecting the water inlet pipe to the left inlet of the housing;

[0019] Step S3, Mechanism Assembly: Control the push plate to push the mechanism in the feeding trough to the top of the housing, so that the mechanism falls into the housing. Control the bracket to move towards the water tank so that the bracket presses the mechanism. Water is introduced into the housing through the water inlet pipe. The water flows out through the gap between the housing and the mechanism and is discharged from the water outlet.

[0020] Step S4, Seal assembly: Control the push plate to push the seal to the designated position, and control the bracket to press the seal;

[0021] Step S5, glass lens assembly: control the push plate to push the glass lens to the designated position, and control the bracket to press the glass lens;

[0022] Step S6, Top cover installation: Control the push plate to push the top cover to the designated position, complete the connection between the top cover and the housing, and stop the water inlet pipe;

[0023] Step S7, water meter removal: Control the bracket to move to a position away from the water tank, and remove the water meter from the water tank.

[0024] The water meter production and assembly system of the present invention has the following beneficial technical effects when used for water meter assembly:

[0025] 1. In the water meter production and assembly system of the present invention, after the housing is placed in the water tank, the water tank is sealed by the outer cover, and then the feeding trough, push plate and bracket cooperate with each other to assemble different water meter parts into the housing in sequence, thereby realizing the automatic assembly of water meters without manual installation, avoiding water flow from wetting workers' clothes, reducing the difficulty of workers' work, saving manpower and improving work efficiency.

[0026] 2. In the water meter production and assembly system of the present invention, by setting a parallel linkage mechanism formed by the first leg and the second leg connected by the third link on the bracket, and setting a first telescopic rod between the first leg and the third link, the alternating lifting and lowering operation of the first leg and the second leg in the vertical direction can be realized, preventing the movement of the mechanism under the action of water flow. This enables effective pressing of the installed parts during the sequential assembly of the seal, glass lens and top cover, and at the same time enables lateral pushing of the glass lens, improving the assembly efficiency of the water meter and ensuring the installation quality of the water meter.

[0027] 3. In the water meter production and assembly system of the present invention, by setting a pawl and a torsion spring on the push plate, and setting a feeding spring between the feeding trough and the outer cover, when the push plate moves away from the window, the pawl enters the third trough along the second trough, thereby driving the feeding trough to compress the feeding spring and causing the next trough to automatically move to the position aligned with the window. Then, the restoring force of the feeding spring is used to directly reset the feeding trough, thereby realizing the automatic switching of the assembly position of different water meter parts and improving the water meter assembly efficiency. Attached Figure Description

[0028] Figure 1 This is a cross-sectional structural diagram of the water meter production and assembly system in this embodiment;

[0029] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0030] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0031] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure along the CC direction;

[0032] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure in the DD direction;

[0033] Figure 6 for Figure 1 Enlarged schematic diagram of the local structure at point I;

[0034] Figure 7 for Figure 1 Enlarged schematic diagram of the local structure at point II;

[0035] Figure 8 for Figure 6 Schematic diagram of the cross-sectional structure in the EE direction;

[0036] Figure 9 for Figure 1 A schematic diagram of the cross-sectional structure along the FF direction. Detailed Implementation

[0037] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] Combination Figures 1 to 9As shown, the water meter production and assembly system of this embodiment includes a water tank 1, an outer cover 2, a feeding trough 3, a mechanism pusher plate 4a, a sealing component pusher plate 4b, a glass lens pusher plate 4c, a top cover pusher plate 4d, and a bracket 5. The water tank 1 is placed horizontally on the ground to hold the housing 6, and has an inlet pipe 7, an outlet 8, and a plug 9. The outer cover 2 is located above the water tank 1 and can reciprocate vertically relative to the water tank 1 to seal it. The feeding trough 3 has four slots: a mechanism slot 3a for holding the mechanism 10, a sealing component slot 3b for holding the sealing component 11, a glass lens slot 3c for holding the glass lens 12, and a top cover slot 3d for holding the top cover 13. The four pushers are slidably connected to the feeding trough 3 and correspond to their respective slots, pushing the water meter parts in their respective slots from the feeding trough to the housing in the water tank. The bracket 5 is located above the water tank 1 and can move back and forth vertically relative to the water tank 1 to form a pressing operation on different parts of the water meter.

[0039] When assembling a water meter using the water meter production and assembly system of this embodiment, the housing is first placed in a water tank. The right inlet of the housing is sealed with a plug, and the water inlet pipe is connected to the left inlet of the housing. The outer cover is moved to connect with the water tank, forming a seal. Then, the mechanism pusher plate is controlled to push the mechanism horizontally to the housing and let the mechanism fall into the housing. The support is controlled to move downward to press the mechanism. Water is drawn into the housing through the water inlet pipe, allowing the water to flow out through the gap between the housing and the mechanism and then be discharged from the outlet. Then, the sealing pusher plate is controlled to push the sealing component to the housing to the designated position, and the support is pressed on the sealing component. Next, the glass lens pusher plate is controlled to push the glass lens to the housing to the designated position, and the support is pressed on the glass lens. Then, the top cover pusher plate is controlled to push the top cover to the housing to the designated position, connecting the top cover to the housing. Finally, the water inlet pipe is stopped from introducing water into the housing, and the outer cover is moved away from the water tank to remove the water meter, completing the water meter assembly operation. This process allows for the automatic assembly of water meters, eliminating the need for manual installation and preventing water from wetting workers' clothes. This not only reduces the difficulty of the work for workers but also saves manpower and improves work efficiency.

[0040] Combination Figure 1As shown, the water meter production and assembly system in this embodiment includes a first connecting rod 14, a second connecting rod 15, and a first spring 16. The first connecting rod 14 is slidably connected to the water tank 1 in the vertical direction. The upper end of the first connecting rod 14 is located near the outer cover 2, allowing it to contact the lowered outer cover 2 and be pushed by the outer cover 2 into the interior of the water tank 1. The lower end of the first connecting rod 14 is located in the water tank 1 and rotatably connected to one end of the second connecting rod 15, while the other end of the second connecting rod 15 is rotatably connected to the end of the water inlet pipe 7 located inside the water tank 1. The water inlet pipe 7 is slidably connected to the water tank 1 in the horizontal direction. The first spring 16 is located between the water tank 1 and the water inlet pipe 7 to drive the water inlet pipe 7 to move outward from the water tank 1.

[0041] At this point, after the housing is placed in the water tank, as the outer cover moves closer to the water tank, the descending outer cover contacts the first connecting rod, pushing the first connecting rod into the water tank. Simultaneously, the second connecting rod drives the inlet pipe to overcome the force of the first spring and move closer to the housing, extending into the left inlet of the housing. This achieves automatic connection between the inlet pipe and the housing. After the water meter assembly is completed, as the outer cover moves away from the water tank, the outer cover releases its downward force on the first connecting rod, and the first spring automatically drives the inlet pipe away from the housing, achieving automatic disengagement of the inlet pipe from the housing. This significantly improves the automation of water meter assembly.

[0042] In this embodiment, an outer cover telescopic rod 17 is provided between the water tank 1 and the outer cover 2. The outer cover telescopic rod 17 is arranged vertically, with one end fixedly connected to the water tank 1 and the other end fixedly connected to the outer cover 2. Thus, by controlling the extension and retraction of the outer cover telescopic rod 17, the reciprocating movement of the outer cover 2 relative to the water tank 1 in the vertical direction can be controlled.

[0043] Combination Figure 1 and Figure 6 As shown, in this embodiment, the support 5 is equipped with a first leg 18, a second leg 19, a first telescopic rod 20, a third connecting rod 21, and a second spring 22. The first leg 18 and the second leg 19 are arranged parallel to each other in the vertical direction. The two ends of the two third connecting rods 21 are rotatably connected to the first leg 18 and the second leg 19, respectively, forming a parallel linkage mechanism. The two ends of the first telescopic rod 20 are rotatably connected to the first leg 18 and the third connecting rod 21, respectively. The platform portion of the first leg 18 is slidably connected to the support 5 in the vertical direction. Simultaneously, the second spring 22 is located between the support 5 and the platform portion of the first leg 18 to drive the first leg 18 to move downwards relative to the support 5.

[0044] At this time, by controlling the extension and retraction of the first telescopic rod, the first and second legs can be alternately raised and lowered in the vertical direction to prevent the mechanism from moving randomly under the action of water flow. This allows for effective pressing of the installed parts during the sequential assembly of the seals, glass lens, and top cover, ensuring the installation quality of the water meter.

[0045] In this embodiment, two parallel third links are provided between the first and second legs, forming a parallel linkage mechanism. The stability of the connection between the first and second legs is ensured by these two parallel, spaced-apart third links, thereby improving the stability and accuracy of the alternating vertical lifting and lowering operation of the first and second legs. Furthermore, a protective sleeve 41 is provided on the second leg 19 to ensure the safety and reliability of the water meter components when pressed, especially when pressing on the glass lens and moving it laterally.

[0046] Combination Figure 6 and Figure 8 As shown, the water meter production and assembly system of this embodiment also includes a tightening sleeve 23 and a tightening motor 24. The tightening sleeve 23 is also located above the water tank 1, and a boss 25 is provided at its lower end. The tightening sleeve 23 can reciprocate vertically relative to the water tank 1, allowing the boss 25 to engage with the upper cover 13. The tightening motor 24 is connected to the tightening sleeve 23 to drive the tightening sleeve 23 to rotate.

[0047] At this point, after the top cover is pushed to the designated position on the housing, the tightening sleeve is moved to its boss to engage with the top cover. Then, the tightening motor is controlled to drive the tightening sleeve to rotate, so that the top cover and the housing can be threaded together, thus achieving a fixed connection between the top cover and the housing.

[0048] Combination Figure 6 As shown, in this embodiment of the water meter production and assembly system, a second telescopic rod 26 and a ring 27 are also provided. The tightening sleeve 23 is fitted onto the outside of the bracket 5, while the ring 27 is rotatably connected to the inner ring of the tightening sleeve 23. The second telescopic rod 26 is arranged vertically, with one end fixedly connected to the platform portion of the first support leg 18 and the other end fixedly connected to the ring 27. This allows the tightening sleeve 23 to be driven to reciprocate vertically relative to the bracket 5, controlling the connection between the tightening sleeve 23 and the upper cover 13 while maintaining the first support leg 18 and the second support leg 19 pressing on the water meter parts.

[0049] Furthermore, the inner surface of the tightening sleeve 23 is provided with internal teeth, and the tightening motor 24 is fixed on the bracket 5. The output shaft of the tightening motor 24 is provided with a gear 28, which meshes with the internal teeth of the tightening sleeve 23. At this time, the rotation of the tightening sleeve is controlled by the meshing connection between the tightening motor and the tightening sleeve, and the reciprocating movement of the tightening sleeve and the gear in the vertical direction can be realized by the extension and retraction of the second telescopic rod, ensuring the flexibility of adjusting the position of the tightening sleeve.

[0050] In addition, combined Figure 1 and Figure 6 As shown, in this embodiment, a support telescopic rod 29 is provided between the outer cover 2 and the support 5. The telescopic rod 29 is used to control the reciprocating movement of the support 5 in the vertical direction.

[0051] In addition, the bracket in this embodiment is provided with two support legs to enable pressing at two positions during the installation of the water meter. Of course, in other embodiments, the number of support legs can be adjusted according to the different structural forms of the water meter to be assembled, so as to meet the pressing requirements of different number of positions.

[0052] Combination Figures 1 to 9 As shown, in this embodiment, the feeding trough 3 and the outer cover 2 are slidably connected in the horizontal direction, that is, along... Figure 2 The vertical sliding connection is shown. Simultaneously, the movement groove 3a, sealing groove 3b, glass lens groove 3c, and upper cover groove 3d are sequentially arranged horizontally on the feeding groove 3. A window 30 is provided on the outer cover 2, and the feeding groove 3 can reciprocate horizontally relative to the outer cover 2. Figure 2 The device moves back and forth in the up and down direction as shown, so that multiple slots are aligned with window 30 in sequence.

[0053] In this way, by controlling the movement of the feeding trough relative to the outer cover, different slots are aligned with the window, and the water meter parts of the corresponding slots can be horizontally pushed into the water tank by the push plate to complete the assembly of the corresponding parts.

[0054] The water meter production and assembly system of this embodiment also includes a feeding spring 31, a pawl 32, a torsion spring 33, a first slide groove 34, a second slide groove 35, and a third slide groove 36. The feeding spring 31 is located between the feeding groove 3 and the outer cover 2 to drive the feeding groove 3 to move upstream of the window 30. Figure 2 The upward movement is shown. Each push plate is equipped with a pawl 32, which has an L-shaped structure. The bent position is rotatably connected to the corresponding push plate via a torsion spring 33. The torsion spring 33 can drive the pawl 32 to rotate in the forward direction, i.e., to move upward. Figure 9 The clockwise rotation allows the push plate to restrain the pawl 32. Figure 9 The location, and in Figure 9The pawl 32 at the indicated position can slide relative to each other along the first slide groove 34, the second slide groove 35, and the third slide groove 36, respectively. The first slide groove 34 is located upstream of the window 30, arranged along a series of grooves, and its lower end extends to a position corresponding to the window 30. The third slide groove 36 is located downstream of the window 30 and is parallel to the first slide groove 34. Relative to the first and third slide grooves 34 and 36, one end of the second slide groove 35 is located closer to the window 30, while the other end extends downstream of the window 30, connecting with the third slide groove 36.

[0055] At this moment, as the outer cover moves to close the water tank, the pawl on the push plate moves with the feeding chute into the first chute, i.e., it is in the position of... Figure 1 and Figure 7 The state is shown. When the drive push plate moves towards the window, the push plate causes the pawl to overcome the force of the torsion spring and rotate out of the first slide groove. As the push plate moves towards the window, after assembling the water meter parts, when the drive push plate moves away from the window, the push plate causes the pawl to move to the second slide groove. Under the action of the torsion spring, the pawl rotates into the second slide groove. Then, as the drive push plate moves away from the window, under the sliding guidance of the pawl and the second slide groove, the feeding chute begins to move downwards, overcoming the force of the feeding spring. Figure 2 As shown, the feed chute moves downwards until the pawl enters the third slide from the second slide. At this point, the feed chute moves and remains aligned with the window in the next slot, facilitating the pushing of the water meter parts into the water tank for assembly. After assembling the water meter parts in all four slots, as the outer cover moves away from the water tank, the feed chute pulls the four pawls away from the third slide, releasing the positional constraint between the feed chute and the outer cover. Under the restoring force of the feed spring, the feed chute is pushed back to its original position. Figure 2 The location shown is for assembling the next water meter.

[0056] In this embodiment, by providing a locating pin consisting of a pawl and a torsion spring on the push plate, the sliding of the push plate along the first, second, and third slide grooves, and the automatic switching of the pawl sliding along different slide grooves, are achieved. Of course, in other embodiments, locating pins with other structural forms can also be used, such as telescopic rods. By actively controlling the extension and retraction of the telescopic rod, the sliding and switching between the locating pin and the first, second, and third slide grooves can also be achieved based on the movement of the push plate.

[0057] In addition, the feeding trough in this embodiment is provided with multiple layers of slots, that is, each slot is along... Figure 1The vertical direction has multiple parts, so that after one water meter part is pushed out and assembled, the next identical water meter part falls down, thereby realizing continuous automated assembly and further improving the assembly efficiency of water meters.

[0058] In addition, in this embodiment, each push plate is provided with a corresponding telescopic rod to drive the corresponding push plate to reciprocate relative to the feeding trough. That is, the core push plate 4a is provided with a corresponding core telescopic rod 37, the sealing push plate 4b is provided with a corresponding sealing telescopic rod 38, the glass lens push plate 4c is provided with a corresponding glass lens telescopic rod 39, and the top cover push plate 4d is provided with a corresponding top cover telescopic rod 40.

[0059] Combination Figures 1 to 9 As shown, the process of assembling a water meter using the water meter production and assembly system of this embodiment is as follows:

[0060] Step S1, loading: Place the movement, seals, glass lens and top cover into the different slots of the loading trough in sequence, put the housing into the water tank, and use the plug to seal the right inlet of the housing.

[0061] Specifically, first, the movement 10, the seal 11, the glass lens 12, and the top cover 13 are placed into the movement groove 3a, the seal groove 3b, the glass lens groove 3c, and the top cover groove 3d, respectively. Then, the housing 6 is placed into the water tank 1, and the right inlet of the housing 6 is inserted and connected to the plug 9 to seal the right inlet of the housing 6.

[0062] Step S2, closing the outer cover: control the outer cover to move closer to the water tank and form a cover over the water tank, connecting the water inlet pipe to the left inlet of the housing.

[0063] Specifically, the control cover telescopic rod 17 retracts, causing the cover 2 to move closer to the water tank 1 until it is flush with the water tank 1, thus sealing the water tank 1. During this process, on the one hand, the cover 2 contacts the first connecting rod 14 and pushes the first connecting rod 14 into the water tank 1, thereby pushing the water inlet pipe 7 against the first spring 16 into the water tank through the second connecting rod 15, thus connecting the water inlet pipe 7 to the left inlet of the housing 6. On the other hand, the cover 2 causes the feeding trough 3 to move closer to the water tank 1, so that all four pawls 32 extend into the first sliding groove 34, and the core groove 3a is aligned with the window 30 on the cover 2.

[0064] Step S3, Mechanism Assembly: The control push plate pushes the mechanism in the feeding trough to the top of the housing, so that the mechanism falls into the housing. The control bracket moves towards the water tank, so that the bracket presses the mechanism. Water is introduced into the housing through the water inlet pipe. The water flows out through the gap between the housing and the mechanism and is discharged from the outlet.

[0065] Specifically, firstly, the telescopic rod 37 of the movement is extended, causing the push plate 4a to overcome the force of the torsion spring 33, causing the pawl 32 on the push plate to slide out of the first groove 34 and move towards... Figure 2 The movement to the left, as shown, pushes the movement 10 out of the movement slot 3a until it reaches the housing 6 and falls into it. Next, the control bracket extension rod 29 extends, driving the bracket 5 towards the water tank 1 until the first leg 18 and the second leg 19 contact the movement 10, pressing it down. Water is then introduced into the housing 6 through the inlet pipe 7, flowing out through the gap between the housing 6 and the movement 10 before being discharged through the outlet 8. Finally, the control movement extension rod 37 retracts, causing the movement push plate 4a to move towards... Figure 2 The movement to the right, as shown, causes the pawl 32 on the push plate to slide into the second groove 35 under the action of the torsion spring 33. The movement telescopic rod 37 continues to retract until the pawl 32 on the movement push plate 4a moves along the second groove 35 to the third groove 36, simultaneously driving the feeding chute 3 to overcome the feeding spring 31 and move towards... Figure 2 The downward movement shown in the figure allows the sealing groove 3b to move precisely to the position aligned with the window 30, thus completing the assembly of the movement 10.

[0066] Step S4, Seal assembly: The control push plate pushes the seal to the designated position, and the control bracket presses the seal.

[0067] Specifically, firstly, the control seal telescopic rod 38 retracts, causing the seal push plate 4b to overcome the force of the torsion spring 33, causing the pawl 32 on the push plate to slide out of the first groove 34 and move towards... Figure 2 The leftward movement, as shown, pushes the seal 11 out of the seal groove 3b until it reaches the second leg 19. Next, the first telescopic rod 20 retracts, causing the second leg 19 to move upward. The seal telescopic rod 38 continues to retract, pushing the seal 11 through the second leg 19. Then, the first telescopic rod 20 extends, causing the second leg 19 to move downward to its reset position. When the seal 11 contacts the first leg 18, the first telescopic rod 20 extends, causing the first leg 18 to move upward and its platform to overcome the second spring 22. After the seal telescopic rod 38 pushes the seal 11 to the designated position, the first telescopic rod 20 retracts, causing the first leg 18 to move downward to its reset position, thus pressing the seal 11. Finally, the seal telescopic rod 38 extends, causing the seal push plate 4b to... Figure 2The movement to the right, as shown, causes the pawl 32 on the push plate to slide into the second groove 35 under the action of the torsion spring 33. The sealing member telescopic rod 38 continues to retract until the pawl 32 on the sealing member push plate 4b moves along the second groove 35 to the third groove 36, and at the same time, it drives the feeding groove 3 to overcome the feeding spring 31 and move towards... Figure 2 The downward movement shown in the figure allows the glass lens groove 3c to move precisely to a position aligned with the window 30, thus completing the assembly of the seal 11.

[0068] Step S5, glass lens assembly: The control push plate pushes the glass lens to the designated position, and the control bracket presses the glass lens.

[0069] Specifically, firstly, the glass lens telescopic rod 39 is controlled to retract, which causes the glass lens push plate 4c to overcome the force of the torsion spring 33, causing the pawl 32 on the push plate to slide out of the first groove 34 and move towards... Figure 2 The glass lens 12 is pushed out of the glass lens slot 3c by moving to the left, until it reaches the second leg 19. Then, the first telescopic rod 20 is retracted to move the second leg 19 upwards. The glass lens telescopic rod 39 continues to retract, pushing the glass lens 12 through the second leg 19. When the glass lens 12 reaches a certain position, the first telescopic rod 20 is extended to move the second leg 19 downwards, pressing it against the glass lens 12. The first telescopic rod 20 continues to extend, moving the first leg 18 upwards and causing its platform to overcome the second spring 22, thus pressing the glass lens 12 while simultaneously moving it upwards. Figure 2 As shown in the leftward movement diagram, when the glass lens 12 moves to the coaxial position with the movement 10, the first telescopic rod 20 is retracted to drive the first leg 18 downward, pressing down on the glass lens 12. During this process, the glass lens 12 remains stationary under the positioning of the glass lens push plate 4c. Then, after both the first leg 18 and the second leg 19 have pressed down on the glass lens 12, the glass lens telescopic rod 39 is extended, driving the glass lens push plate 4c to... Figure 2 The movement to the right, as shown, causes the pawl 32 on the push plate to slide into the second groove 35 under the action of the torsion spring 33. The glass lens telescopic rod 39 continues to retract until the pawl 32 on the glass lens push plate 4c moves along the second groove 35 to the third groove 36, and at the same time, it drives the feeding chute 3 to overcome the feeding spring 31 and move towards... Figure 2 The downward movement shown in the figure allows the upper cover groove 3d to move precisely to the position aligned with the window 30, thus completing the assembly of the glass lens 12.

[0070] Step S6, Top Cover Installation: Control the push plate to push the top cover to the designated position, complete the connection between the top cover and the housing, and stop the water inlet pipe.

[0071] Specifically, firstly, the upper cover telescopic rod 40 is controlled to retract, which drives the upper cover push plate 4d to overcome the force of the torsion spring 33, causing the pawl 32 on the push plate to slide out of the first slide groove 34 and move towards... Figure 2 The upper cover 13 is pushed out of the upper cover slot 3d as shown in the diagram until it reaches the second leg 19. Then, the first telescopic rod 20 is retracted to move the second leg 19 upwards. The upper cover telescopic rod 40 continues to retract, pushing the upper cover 13 through the second leg 19. The first telescopic rod 20 is extended to move the second leg 19 downwards until it returns to its original position and remains pressed against the glass lens 12. Then, when the upper cover 13 moves to contact the first leg 18, the first telescopic rod 20 is extended to move the first leg 18 upwards and simultaneously move the first... The platform of the support leg 18 moves upward against the second spring 22. After the upper cover 13 continues to move to the left to the designated position, the second telescopic rod 26 is controlled to retract. Through the ring 27, the tightening sleeve 23 moves downward until the boss 25 forms a toothed connection with the upper cover 13. The tightening motor 24 is started, which drives the tightening sleeve 23 to rotate through the gear 28, so that the upper cover 13 and the housing 6 are threaded together, thereby fixing the movement 10, the seal 11 and the glass lens 12 inside the housing 6. Finally, the water inlet pipe 7 stops the water from entering the housing 6, and the upper cover telescopic rod 40 is controlled to extend, driving the upper cover push plate 4d to move upward. Figure 2 As shown, the rightward movement causes the pawl 32 on the push plate to slide into the second slide groove 35 under the action of the torsion spring 33. The upper cover telescopic rod 40 continues to retract until the pawl 32 on the upper cover push plate 4d moves along the second slide groove 35 to the third slide groove 36, completing the assembly of the upper cover 13.

[0072] Step S7, water meter removal: Move the control bracket to a position away from the water tank and remove the water meter from the water tank.

[0073] Specifically, firstly, the second telescopic rod 26 is extended, causing the tightening sleeve 23 to disengage from the upper cover 13 via the ring 27; then, the outer cover telescopic rod 17 is extended, causing the outer cover 2 to move away from the water tank 1, thereby disengaging all four pawls 32 from the third slide groove 36, and then, under the restoring force of the feeding spring 31, pushing the feeding groove 3 towards... Figure 2The upper part moves to the reset position, the movement groove 3a is re-aligned with the window 30, and the contact with the first link 14 is released. Under the restoring force of the first spring 16, the water inlet pipe 7 is driven to move to the outside of the water tank 1 and disengage from the housing 6. The first link 14 is driven to extend to the outside of the water tank 1 through the second link 15. Then, when the outer cover 2 moves to the highest position, the water meter that has been assembled in the water tank 1 is taken out, and the water meter assembly operation is completed.

Claims

1. A water meter manufacturing and assembly system, characterized in that, The device includes a water tank, an outer cover, a feeding trough, a push plate, and a bracket. The water tank is used to hold the housing and is equipped with a water inlet pipe, a water outlet, and a plug. The outer cover is located above the water tank and can reciprocate relative to the water tank to form a seal. The feeding trough has multiple slots for placing water meter parts. The push plate is slidably connected to the feeding trough and can push the water meter parts in the feeding trough into the housing located in the water tank in sequence. The bracket is located above the water tank and can move relative to the water tank to press the water meter parts. The water meter production and assembly system includes a first connecting rod, a second connecting rod, and a first spring. The first connecting rod is slidably connected to the water tank in a vertical direction. The upper end of the first connecting rod can contact the outer cover and be pushed into the water tank by the outer cover. The lower end of the first connecting rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to one end of the water inlet pipe located inside the water tank. The water inlet pipe is slidably connected to the water tank in a horizontal direction. The first spring is located between the water tank and the water inlet pipe to drive the water inlet pipe to move to the outside of the water tank.

2. The water meter production and assembly system according to claim 1, characterized in that, The bracket is provided with a first leg, a second leg, a first telescopic rod, a third connecting rod, and a second spring; the first leg and the second leg are arranged parallel to each other in the vertical direction, the two ends of the third connecting rod are respectively rotatably connected to the first leg and the second leg, the two ends of the first telescopic rod are respectively rotatably connected to the first leg and the third connecting rod, and the first leg is slidably connected to the bracket in the vertical direction; the second spring is located between the bracket and the first leg to drive the first leg to move downward relative to the bracket.

3. The water meter production and assembly system according to claim 2, characterized in that, The water meter production and assembly system includes a tightening sleeve and a tightening motor; the tightening sleeve is located above the water tank, and a boss is provided at the lower end of the tightening sleeve. The tightening sleeve can move relative to the water tank until the boss engages with the upper cover; the tightening motor is connected to the tightening sleeve and can drive the tightening sleeve to rotate.

4. The water meter production and assembly system according to claim 3, characterized in that, The water meter production and assembly system includes a second telescopic rod and a ring; the tightening sleeve is sleeved on the outside of the bracket, and the ring is rotatably connected to the inner ring of the tightening sleeve. The second telescopic rod is arranged vertically between the bracket and the ring to drive the tightening sleeve to reciprocate vertically relative to the bracket.

5. The water meter production and assembly system according to claim 4, characterized in that, The inner surface of the tightening sleeve is provided with internal teeth, the tightening motor is fixed on the bracket, and the output shaft of the tightening motor is provided with a gear, which meshes with the internal teeth of the tightening sleeve.

6. The water meter production and assembly system according to claim 1, characterized in that, The feeding trough is slidably connected to the outer cover in the horizontal direction. Multiple slots are arranged sequentially in the horizontal direction in the feeding trough, and each slot is provided with a push plate. The outer cover is provided with a window, and the feeding trough can move back and forth in the horizontal direction relative to the outer cover so that the multiple slots are aligned with the window in sequence.

7. The water meter production and assembly system according to claim 6, characterized in that, The water meter production and assembly system includes a feeding spring, a feeding pin, a first slide groove, a second slide groove, and a third slide groove; the feeding spring is located between the feeding groove and the outer cover to drive the feeding groove to move upstream of the window; each push plate is provided with a feeding pin, and the feeding pin can slide relative to the first slide groove, the second slide groove, and the third slide groove respectively; The first slide is located upstream of the window, arranged along the direction of the plurality of slots distributed sequentially, and its end corresponds to the window; the third slide is located downstream of the window and is arranged parallel to the first slide; relative to the first slide and the third slide, one end of the second slide is located close to the window, and the other end extends inclined downstream of the window to communicate with the third slide.

8. The water meter production and assembly system according to claim 7, characterized in that, The feeding pin employs a combination of a pawl and a torsion spring; the pawl has an L-shaped structure, and its bent position is rotatably connected to the push plate via the torsion spring; the torsion spring can drive the pawl to rotate forward, and the push plate can limit the angle of the pawl's forward rotation; when the pawl moves towards the window with the push plate, the pawl overcomes the torsion spring and rotates in the opposite direction to leave the first slide groove; when the pawl moves away from the window with the push plate, the torsion spring drives the pawl to rotate forward and move sequentially along the second slide groove and the third slide groove.

9. A method for assembling a water meter, characterized in that, The water meter assembly process using the water meter production and assembly system described in any one of claims 1-8 includes the following specific steps: Step S1, loading: Place the movement, seal, glass lens and top cover into the different slots of the loading trough in sequence, place the housing into the water tank, and use a plug to seal the right inlet of the housing; Step S2, closing the outer cover: control the outer cover to move closer to the water tank and form a cover over the water tank, connecting the water inlet pipe to the left inlet of the housing; Step S3, Mechanism Assembly: Control the push plate to push the mechanism in the feeding trough to the top of the housing, so that the mechanism falls into the housing. Control the bracket to move towards the water tank so that the bracket presses the mechanism. Water is introduced into the housing through the water inlet pipe. The water flows out through the gap between the housing and the mechanism and is discharged from the water outlet. Step S4, Seal assembly: Control the push plate to push the seal to the designated position, and control the bracket to press the seal; Step S5, glass lens assembly: control the push plate to push the glass lens to the designated position, and control the bracket to press the glass lens; Step S6, Top cover installation: Control the push plate to push the top cover to the designated position, complete the connection between the top cover and the housing, and stop the water inlet pipe; Step S7, water meter removal: Control the bracket to move to a position away from the water tank, and remove the water meter from the water tank.

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