Water meter wear-resistant sleeve structure convenient to install

Abstract

The utility model relates to the technical field of water meters, in particular to a water meter wear-resistant sleeve structure convenient to install. According to the technical scheme, the water meter abrasion-resistant sleeve structure convenient to install comprises an abrasion-resistant sleeve body and further comprises a piston chamber matched with the abrasion-resistant sleeve body, and the abrasion-resistant sleeve body is connected with the piston chamber in an inserted mode. The wear-resisting sleeve has the advantages that the wear-resisting sleeve body can be directly injected into the size required by a drawing and is inserted into a piston chamber to be fixed, production steps are simplified, and production cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of water meters, and in particular to a wear-resistant sleeve structure of a water meter that is easy to install. Background Art

[0002] A water meter is an instrument for measuring water flow. The flowing water drives an impeller to rotate. Every time the impeller rotates one circle, a constant volume of water flows through. Therefore, as long as the number of impeller rotations is accumulated and multiplied by this constant volume, the total amount of water flowing through can be obtained.

[0003] Among them, the rotating shaft of the metering mechanism of the water meter revolves around the wear-resistant sleeve, and there are standard requirements for the distance between the rotating shaft and the surface of the wear-resistant sleeve. The existing wear-resistant sleeve structure is fixed on the piston chamber by a press machine, and the wear-resistant sleeve is installed on the protrusion to form an interference fit. The wear-resistant sleeve is bound to expand and deform, resulting in a change in the distance between the wear-resistant sleeve and the rotating shaft. CNC processing is required to trim the shape of the wear-resistant sleeve to achieve the required size, resulting in cumbersome production steps and high production costs. Utility Model Content

[0004] In order to simplify the production steps and reduce production costs, the present application provides a water meter wear-resistant sleeve structure that is easy to install.

[0005] The present application provides a water meter wear-resistant sleeve structure that is easy to install and adopts the following technical solution: it includes a wear-resistant sleeve body and a piston chamber adapted to the wear-resistant sleeve body, and the wear-resistant sleeve body and the piston chamber are plug-connected.

[0006] By adopting the above technical solution, the wear-resistant sleeve body can be directly injection-molded into the size required by the drawing and inserted into the piston chamber for fixing, thereby simplifying the production steps and reducing the production cost.

[0007] Preferably, a groove for inserting the bottom of the wear-resistant sleeve body is provided in the piston chamber, and a clamping piece is provided at the bottom of the wear-resistant sleeve body, and the clamping piece enables the wear-resistant sleeve body to be fixed to the piston chamber after being inserted into the groove.

[0008] By adopting the above technical solution, the wear-resistant sleeve body is inserted into the groove, and the wear-resistant sleeve body and the piston chamber are fixed by the clamping piece.

[0009] Preferably, the clamping piece includes a clamping block, which extends radially along the wear-resistant sleeve body, and an L-shaped groove for embedding the clamping block is opened in the piston chamber, and the L-shaped groove is divided into a vertical slot and a transverse bottom groove, the vertical slot is opened on the slot wall of the groove along the radial direction of the piston chamber, and the transverse bottom groove is opened on the slot wall of the groove along the circumferential direction of the piston chamber, one end of the vertical slot is connected to one end of the transverse bottom groove, and when the clamping block is embedded in the transverse bottom groove, the wear-resistant sleeve body and the piston chamber are rotatably connected.

[0010] By adopting the above technical solution, the block is inserted into the vertical slot along the axial direction of the piston chamber. When the block is located in the transverse bottom slot, the block moves circumferentially in the transverse bottom slot when the wear-resistant sleeve body is rotated. The groove wall of the transverse bottom slot limits the axial movement of the wear-resistant sleeve body along the piston chamber, thereby achieving a fixing effect.

[0011] Preferably, three clamping blocks are provided, and the three clamping blocks are arranged on the outer wall of the wear-resistant sleeve body at equal angles along the circumference of the wear-resistant sleeve body, and three L-shaped grooves are provided, and the three L-shaped grooves correspond to the three clamping blocks one by one.

[0012] By adopting the above technical solution, the three clamping blocks are respectively inserted into the three L-shaped grooves, so that the connection relationship between the wear-resistant sleeve body and the piston chamber is more stable.

[0013] Preferably, a connecting column extends from the bottom of the piston chamber, one end of the connecting column is connected to the groove, and a connecting thread is circumferentially opened on the outer wall of the connecting column, and the connecting column is used to be connected to the water meter.

[0014] By adopting the above technical solution, the opening of the connecting thread makes it easy to install the piston chamber on the water meter after the wear-resistant sleeve body is installed.

[0015] Preferably, a hollow groove is coaxially formed on the wear-resistant sleeve body, and the hollow groove passes through an end surface of the wear-resistant sleeve body away from the piston chamber.

[0016] By adopting the above technical solution, the rigidity of the wear-resistant sleeve body may deteriorate after long-term use. A hollow groove is reserved, and a rigid rod can be inserted into the hollow groove to improve the overall rigidity of the wear-resistant sleeve body.

[0017] Preferably, a water-passing opening is passed through the bottom of the piston chamber in a vertical direction, and the water-passing opening is located on one side of the groove.

[0018] By adopting the above technical solution, water flows into the piston chamber through the water opening and drives the rotating shaft to rotate, and then the metering mechanism measures the water flow.

[0019] Preferably, a weight-reducing groove is provided on one end of the wear-resistant sleeve body away from the hollow groove, the cross section of the weight-reducing groove along the vertical direction is trapezoidal, and the weight-reducing groove and the hollow groove are coaxially provided.

[0020] By adopting the above technical solution, the weight-reducing groove is opened to reduce the deadweight of the wear-resistant sleeve body and save injection molding materials, thereby reducing production costs.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The wear-resistant sleeve body can be directly injection molded into the size required by the drawing, and then inserted into the piston chamber and fixed, which simplifies the production steps and reduces production costs;

[0023] 2. Insert the block into the vertical slot along the axial direction of the piston chamber. When the block is located in the transverse bottom slot, the block moves circumferentially in the transverse bottom slot when the wear-resistant sleeve body is rotated. The groove wall of the transverse bottom slot limits the axial movement of the wear-resistant sleeve body along the piston chamber to achieve a fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this application;

[0025] Figure 2 It is an exploded schematic diagram of the overall structure of the present application;

[0026] Figure 3 It is a schematic cross-sectional view of the overall structure of the present application;

[0027] Figure 4 yes Figure 2 A partial enlarged schematic diagram of part A.

[0028] Explanation of the reference numerals: 11, wear-resistant sleeve body; 111, hollow groove; 112, insertion portion; 113, weight-reducing groove; 114, block; 12, piston chamber; 121, groove; 122, connecting column; 123, connecting thread; 124, water opening; 130, L-shaped groove; 131, vertical notch; 132, horizontal bottom groove. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] The present application discloses a water meter wear-resistant sleeve structure that is easy to install and is used to simplify production steps and reduce production costs.

[0031] refer to Figure 1A water meter wear-resistant sleeve structure that is easy to install includes a wear-resistant sleeve body 11 and a piston chamber 12 that is compatible with the wear-resistant sleeve body 11. In order to simplify the production steps and reduce the production cost, the wear-resistant sleeve body 11 and the piston chamber 12 are plugged together. The wear-resistant sleeve body 11 can be directly injection molded into the size required by the drawing and inserted into the piston chamber 12 for fixing.

[0032] The wear-resistant sleeve body 11 is cylindrical, and a hollow groove 111 is coaxially opened on the wear-resistant sleeve body 11. The hollow groove 111 passes through the end surface of the wear-resistant sleeve body 11 away from the piston chamber 12. After long-term use, the rigidity of the wear-resistant sleeve body 11 may deteriorate. The hollow groove 111 is reserved, and a rigid rod can be inserted into the hollow groove 111 to improve the overall rigidity of the wear-resistant sleeve body 11.

[0033] refer to Figure 2 , Figure 3 In order to facilitate the demoulding of the wear-resistant sleeve body 11 during the production process, the circumferential cutting part of the wear-resistant sleeve body 11 at one end is formed with an insertion portion 112, and the insertion portion 112 is located at the end of the wear-resistant sleeve body 11 away from the hollow groove 111; in order to save injection molding materials, a weight-reducing groove 113 is provided at the end of the insertion portion 112 away from the hollow groove 111, and the cross-section of the weight-reducing groove 113 along the vertical direction is trapezoidal, and the weight-reducing groove 113 and the hollow groove 111 are coaxially opened. The opening of the weight-reducing groove 113 reduces the self-weight of the wear-resistant sleeve body 11 and saves injection molding materials, thereby reducing production costs.

[0034] Specifically, refer to Figure 2 , Figure 4A groove 121 is provided in the piston chamber 12 for inserting the bottom of the wear-resistant sleeve body 11, and a clamping piece is provided at the bottom of the wear-resistant sleeve body 11. The clamping piece makes the wear-resistant sleeve body 11 fixed with the piston chamber 12 after being inserted into the groove 121. The clamping piece includes a clamping block 114, and the clamping block 114 extends radially along the wear-resistant sleeve body 11. An L-shaped groove 130 is provided in the piston chamber 12 for embedding the clamping block 114. The L-shaped groove 130 is divided into a vertical groove 131 and a horizontal bottom groove 132. The vertical groove 131 is provided on the groove wall of the groove 121 along the radial direction of the piston chamber 12, and the horizontal bottom groove 132 is provided on the groove wall of the groove 121 along the circumferential direction of the piston chamber 12. One end of the vertical groove 131 is connected to one end of the horizontal bottom groove 132. When the clamping block 114 is embedded in the horizontal bottom groove 132, the wear-resistant sleeve body 11 and the piston chamber 12 are rotatably connected. In the present embodiment, three clamping blocks 114 are provided, and the three clamping blocks 114 are arranged on the outer wall of the insertion portion 112 at equal angles along the circumference of the wear-resistant sleeve body 11. Three L-shaped grooves 130 are provided, and the three L-shaped grooves 130 correspond to the three clamping blocks 114 one by one. The three clamping blocks 114 are respectively corresponded to the three vertical slots 131 one by one, and the clamping blocks 114 are inserted into the vertical slots 131 along the axial direction of the piston chamber 12. When the clamping blocks 114 are located in the horizontal bottom groove 132, when the wear-resistant sleeve body 11 is rotated, the clamping blocks 114 make circumferential motion in the horizontal bottom groove 132, and the groove walls of the horizontal bottom groove 132 limit the axial movement of the wear-resistant sleeve body 11 along the piston chamber 12 to achieve a fixing effect.

[0035] Further, refer to Figure 3 , Figure 4 In order to facilitate the installation of the piston chamber 12 on the water meter after the wear-resistant sleeve body 11 is installed, a connecting column 122 is extended from the bottom of the piston chamber 12, one end of the connecting column 122 is connected to the groove 121, and a connecting thread 123 is opened on the outer wall of the connecting column 122 in the circumferential direction. The connecting column 122 is used to connect with the water meter; a water opening 124 is penetrated through the bottom of the piston chamber 12 in the vertical direction, and the water opening 124 is located on one side of the groove 121. Water flows into the piston chamber 12 through the water opening 124 and drives the rotating shaft to rotate, and then the metering mechanism measures the water flow.

[0036] The implementation principle of a water meter wear-resistant sleeve structure that is easy to install in an embodiment of the present application is as follows: three blocks 114 are respectively matched with three vertical slots 131 one by one, and the blocks 114 are inserted into the vertical slots 131 along the axial direction of the piston chamber 12. When the blocks 114 are located in the transverse bottom groove 132, the blocks 114 make circumferential motion in the transverse bottom groove 132 when the wear-resistant sleeve body 11 is rotated, and the groove wall of the transverse bottom groove 132 limits the axial movement of the wear-resistant sleeve body 11 along the piston chamber 12 to achieve a fixing effect. The wear-resistant sleeve body 11 can be directly injection molded into the size required by the drawing and inserted into the piston chamber 12 for fixing, which simplifies the production steps and reduces the production cost.

[0037] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water meter wear-resistant sleeve structure that is easy to install, comprising a wear-resistant sleeve body (11), characterized in that: It also comprises a piston chamber (12) adapted to the wear-resistant sleeve body (11), and the wear-resistant sleeve body (11) and the piston chamber (12) are plug-connected.

2. The water meter wear-resistant sleeve structure that is easy to install according to claim 1 is characterized by: The piston chamber (12) is provided with a groove (121) for inserting the bottom of the wear-resistant sleeve body (11), and a clamping piece is provided at the bottom of the wear-resistant sleeve body (11). The clamping piece enables the wear-resistant sleeve body (11) to be inserted into the groove (121) and fixed to the piston chamber (12).

3. The water meter wear-resistant sleeve structure that is easy to install according to claim 2 is characterized by: The clamping member comprises a clamping block (114), the clamping block (114) extending radially along the wear-resistant sleeve body (11); an L-shaped groove (130) for embedding the clamping block (114) is provided in the piston chamber (12); the L-shaped groove (130) is divided into a vertical notch (131) and a transverse bottom groove (132); the vertical notch (131) is provided on a groove wall of the groove (121) along the radial direction of the piston chamber (12); the transverse bottom groove (132) is provided on a groove wall of the groove (121) along the circumferential direction of the piston chamber (12); one end of the vertical notch (131) is connected to one end of the transverse bottom groove (132); when the clamping block (114) is embedded in the transverse bottom groove (132), the wear-resistant sleeve body (11) and the piston chamber (12) are rotatably connected.

4. The water meter wear-resistant sleeve structure that is easy to install according to claim 3 is characterized by: Three clamping blocks (114) are provided, and the three clamping blocks (114) are arranged on the outer wall of the wear-resistant sleeve body (11) at equal angles along the circumference of the wear-resistant sleeve body (11). Three L-shaped grooves (130) are provided, and the three L-shaped grooves (130) correspond to the three clamping blocks (114) one by one.

5. The water meter wear-resistant sleeve structure that is easy to install according to claim 4, characterized in that: A connecting column (122) extends from the bottom of the piston chamber (12); one end of the connecting column (122) is connected to the groove (121); a connecting thread (123) is circumferentially formed on the outer wall of the connecting column (122); and the connecting column (122) is used to be connected to a water meter.

6. The water meter wear-resistant sleeve structure that is easy to install according to claim 5, characterized in that: A hollow groove (111) is coaxially formed on the wear-resistant sleeve body (11), and the hollow groove (111) passes through an end surface of the wear-resistant sleeve body (11) away from the piston chamber (12).

7. The water meter wear-resistant sleeve structure that is easy to install according to claim 6, characterized in that: The bottom of the piston chamber (12) is penetrated by a water-passing opening (124) in a vertical direction, and the water-passing opening (124) is located on one side of the groove (121).

8. The water meter wear-resistant sleeve structure that is easy to install according to claim 7, characterized in that: A weight-reducing groove (113) is provided on one end of the wear-resistant sleeve body (11) away from the hollow groove (111); the cross section of the weight-reducing groove (113) along the vertical direction is trapezoidal; the weight-reducing groove (113) and the hollow groove (111) are coaxially provided.

Images