Positioning structure for water meter shell assembly process

Abstract

The utility model provides a positioning structure for a water meter shell assembly process, and belongs to the technical field of tool clamps. The problem of how to improve the positioning stability of the water meter shell is solved. The positioning structure for the water meter shell assembly process comprises a bottom plate, a fixing base with a limiting groove formed in the side wall is fixed to the bottom plate, the bottom plate is further slidably connected with a sliding base which is always opposite to a groove opening of the limiting groove and can be used for positioning, and the outer wall of the side, facing the limiting groove, of the sliding base is connected with a fixing column; the rear end of the fixing column is fixedly connected with the sliding seat, a clamping groove is formed in the front end of the fixing column in the transverse direction, the clamping groove penetrates through the side walls of the two sides of the fixing column, and a groove opening of the clamping groove and a groove opening of the limiting groove are oppositely formed. The positioning structure for the water meter shell assembly process can improve the positioning stability of the water meter shell.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, and relates to a positioning structure for water meter housing assembly process. Background Technology

[0002] Water meters are very common metering devices in modern life. They generally consist of multiple parts such as a housing, a mechanism, and an impeller. During the production and processing, especially when assembling the various components into the housing, the assembly accuracy is one of the important factors that determines the metering accuracy of the water meter. Therefore, it is necessary to ensure that the housing remains stable throughout the assembly process.

[0003] In this regard, existing technologies generally employ locking fixtures to clamp and lock the water meter casing. Specifically, the locking fixtures currently used typically include a base plate, a fixed seat fixed on the base plate, and a sliding seat opposite to the fixed seat. The sliding seat is slidably connected to the base plate via a slide rail. In addition, a positioning plate is installed on the side of the base plate opposite to the fixed seat, and bolts are screwed onto the positioning plate to abut against the outer wall of the sliding seat. During operation, the worker places the casing on the base plate between the sliding seat and the push seat, and rotates the bolts to push the sliding seat toward the fixed seat. The pushing force generated by the rotation and movement of the drive causes the sliding seat and the fixed seat to cooperate and clamp the casing.

[0004] To ensure the stability of the clamping, there are certain requirements for the actual shape of the push seat and the sliding seat. Specifically, the fixed seat, as the main mounting component, has a groove on its side wall. When the housing is in the positioning state, one side of its outer wall can fit and abut against the groove wall. The push seat, as the force-applying component, has at least two pillars on its outer wall to ensure the force is concentrated. The pillars abut against the other side wall of the housing.

[0005] However, the actual performance was unsatisfactory. The reason is that, in order to avoid damage or scratches to the outer wall of the housing, the force exerted by the pusher on the side wall of the housing through the column is not very large. Therefore, in the horizontal direction, it can be ensured that the housing is confined in the groove of the fixed seat. However, in the vertical direction, the housing may still wobble up and down relative to the fixed seat and the pusher, requiring the housing to be reset and re-locked. The operation is very cumbersome and seriously affects the assembly efficiency. Summary of the Invention

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a positioning structure for the assembly process of water meter housings. The technical problem to be solved by this invention is: how to improve the positioning stability of water meter housings.

[0007] The objective of this utility model can be achieved through the following technical solution: a positioning structure for water meter housing assembly process, comprising a base plate, a fixed seat with a limiting groove on the side wall fixed on the base plate, and a sliding seat that is always opposite to and can be positioned on the base plate. A fixed column is connected to the outer wall of the sliding seat facing the limiting groove. The fixed column is characterized in that its rear end is connected and fixed to the sliding seat, and its front end has a slot along the transverse direction. The slot penetrates the side walls of both sides of the fixed column, and the slot opening is opposite to the slot opening of the limiting groove.

[0008] The working principle of this positioning structure used in the water meter housing assembly process is as follows: the water meter housing is placed on the base plate, and then the sliding seat is controlled to move towards the fixed seat. The limiting groove wall on the fixed seat abuts against one side wall of the water meter housing, while the fixing post on the sliding seat abuts against the other side wall of the water meter housing. The two working together clamp the two side walls of the water meter housing, thus firmly positioning the water meter housing on the base. The difference between this application and the prior art is that a slot is formed laterally at the front end of the fixing post, creating two protruding support parts at the front end of the fixing post. In actual operation, the front end of the fixing post abuts against the outer wall of the water meter housing through the two support parts. Simultaneously, the water meter housing itself has an arc-shaped contour, and the two support parts... While contacting the outer wall of the water meter housing, the outer wall of the water meter housing located between the two support parts can be embedded in the slot and abut against the slot wall. It should be further emphasized that in this application, the slot is opened horizontally and penetrates the two side walls of the fixing column. Therefore, in actual operation, the water meter housing is received by the limiting groove in the fixing seat, and the sliding seat applies a clamping force to the water meter housing through the fixing column to ensure that the water meter housing is effectively positioned in the horizontal direction. At the same time, the slot setting at the front end of the fixing column increases the contact surface between the front end of the positioning column and the water meter housing. In addition, the two support parts formed are distributed vertically on the upper and lower sides of the slot, which helps to improve the locking of the water meter in the vertical direction, thereby ensuring that the water meter is positioned more stably on the base plate, and thus ensuring the efficiency and accuracy of subsequent assembly processing.

[0009] In the aforementioned positioning structure for the water meter housing assembly process, the slot is flared. This flared slot structure ensures a deeper embedding depth of the water meter housing's outer wall into the slot, increasing the contact area between the fixing post and the water meter housing to some extent. Furthermore, it further expands the distance between the two support parts at the front end of the fixing post, thereby ensuring the vertical positioning stability of the water meter housing.

[0010] In the aforementioned positioning structure for the water meter housing assembly process, the fixed seat is fixedly connected to one edge of the base plate. A slide rail is fixedly mounted on the base plate, directly opposite the limiting groove opening. A slider is fixedly mounted at the bottom of the sliding seat, and the slider is slidably connected to the slide rail. Two fixed posts are located on either side of the slide rail. Specifically, in this application, the sliding seat slides on the base plate via a slider fixed to its bottom and a slide rail fixed to it. This allows the sliding seat to slide on the base plate while restricting its sliding direction. Furthermore, the sliding seat is connected to at least two fixed posts, each located on either side of the guide rail. This provides support at four points (two locations) on the side of the water meter housing facing the sliding seat, ensuring the positioning stability of the water meter housing.

[0011] In the aforementioned positioning structure for the water meter housing assembly process, the two fixed columns have clearance surfaces on their opposite sidewalls that meet the front edge of the fixed columns, and these clearance surfaces are inclined outwards relative to the sidewall of the slide rail. By providing these clearance surfaces, clearance is created on both sides of the slot, ensuring that the slot profile better matches the outer sidewall profile of the water meter housing, effectively preventing wobbling caused by insufficient contact.

[0012] In the aforementioned positioning structure for the water meter housing assembly process, the front end faces of the two fixed columns are inclined outward relative to the side wall of the slide rail. This ensures that the front end of the support column has a larger force-bearing area and that its outline is closer to the outer side wall of the water meter housing, thereby ensuring stable contact and achieving a stable support effect.

[0013] In the aforementioned positioning structure for water meter housing assembly, each of the fixed columns has a threaded hole at its rear end. The sliding seat has two through holes arranged axially along the slide rail on its outer wall opposite to the fixed seat. The fixed column and the sliding seat are bolted together through the through holes and threaded holes. This design allows for the replacement of support columns of different sizes and shapes for different models of water meter housings, ensuring the applicability of this positioning structure for water meter housing assembly.

[0014] In the aforementioned positioning structure for the water meter housing assembly process, a connecting seat is fixed to the other end of the base plate. An adjusting bolt arranged axially along the slide rail is screwed onto the connecting seat. A positioning groove is formed circumferentially at the front end of the adjusting bolt. A channel axially arranged along the slide rail is formed in the sliding seat. The front end of the adjusting bolt passes through the channel, with its outer circumferential wall fitting against the inner circumferential wall of the channel. The bottom wall of the positioning groove abuts against the sliding seat. The threaded engagement between the adjusting bolt and the threaded hole on the connecting seat allows the adjusting bolt to move axially along the guide rail. Furthermore, the engagement between the outer wall of the adjusting bolt's front end and the inner wall of the channel in the sliding seat ensures that the moving directions of the adjusting bolt and the sliding seat are always coaxial.

[0015] In the aforementioned positioning structure for the water meter housing assembly process, a receiving groove is formed on the outer wall of the sliding seat on the side opposite to the fixed seat, surrounding the channel port. The bottom wall of the positioning groove abuts against the bottom wall of the receiving groove. A spring is fitted around the adjusting bolt, with one end of the spring abutting against the outer wall of the connecting seat and the other end abutting against the bottom wall of the receiving groove. The abutting cooperation between the bottom walls of the receiving groove and the positioning groove ensures full contact between the sliding seat and the adjusting bolt, and under the force of the spring, ensures that the force exerted by the fixed column on the water meter housing is more moderate.

[0016] Compared with existing technologies, the positioning structure used in the water meter housing assembly process has the following advantages:

[0017] By creating a slot at the front end of the fixed column that runs horizontally through both ends and has the slot opening and the limiting slot opening opposite each other, the front end of the fixed column forms a support part that is vertically spaced on both sides of the slot. The support part abuts against the outer wall of the water meter housing, and the outer wall of the water meter housing located between the two support parts is embedded in the slot and abuts against the slot wall, thus ensuring the positioning stability of the water meter housing in both the horizontal and vertical directions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the positioning structure used in the assembly process of water meter housings.

[0019] Figure 2 This is a side view of the positioning structure used in the assembly process of water meter housings.

[0020] Figure 3 yes Figure 2 A sectional view taken along the AA direction.

[0021] Figure 4 yes Figure 2 A sectional view taken along the BB direction.

[0022] Figure 5 It is a structural diagram of any fixed column.

[0023] Figure 6 This is a structural schematic diagram of any fixed column from another perspective.

[0024] In the diagram, 1 is the base plate; 2 is the fixed seat; 21 is the limiting groove; 3 is the sliding seat; 31 is the fixed column; 311 is the slot; 312 is the clearance surface; 313 is the threaded hole; 32 is the slider; 4 is the slide rail; 5 is the connecting seat; 51 is the adjusting bolt; 511 is the positioning groove; and 512 is the spring. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figure 1 and Figure 2 As shown, the positioning structure used in the water meter housing assembly process includes a rectangular plate-shaped base plate 1. A fixing seat 2 is fixed at one edge on the upper side of the base plate 1. Specifically, the positioning structure also includes a vertical plate fixed at the end of the base plate 1. One side of the base plate 1 and the vertical plate are locked together by screws, and a limiting groove 21 is opened at the other end. The positioning structure also includes a sliding seat 3. A slide rail 4 is fixed along the axial direction in the middle of the base plate 1. A slider 32 is locked at the bottom of the sliding seat 3 by screws. The sliding seat 3 is connected and cooperated with the slide rail 4 through the slider 32 to realize that the sliding seat 3 slides on the base plate 1 to approach or move away from the limiting groove 21 of the fixing seat 2.

[0027] Two horizontally arranged fixing posts 31 are fixed on the outer wall of the sliding seat 3 facing the fixed seat 2. The two fixing posts 31 are located on both sides of the slide rail 4 and are arranged parallel to the slide rail 4. Figure 4 and Figure 6 Two through holes 33 parallel to the slide rail 4 are provided on the side of the sliding seat 3 facing away from the fixed seat 2. Threaded holes 313 are provided on the rear end face of each fixed post 31. The fixed post 31 is placed horizontally on the side of the sliding seat 3 facing the fixed seat 2 and the threaded holes 313 and through holes 33 are positioned opposite each other. A long screw passes through the through holes 33 and is screwed into the threaded holes 313, so that the fixed post 31 is positioned on the sliding seat 3 and is always set towards the opening of the limiting groove 21 on the fixed seat 2.

[0028] Combination Figure 3A connecting seat 5 is fixedly provided at the other end of the base plate 1. An adjusting bolt 51 arranged along the axial direction of the slide rail 4 is screwed onto the connecting seat 5. A channel 34 is provided along the axial direction of the slide rail 4 at the end of the sliding seat 3 facing away from the fixed seat 2. The front end of the adjusting bolt 51 extends into the channel 34 and its outer peripheral wall fits against the inner peripheral wall of the sliding seat 3. In addition, a receiving groove 35 is provided around the port of the channel 34 on the side of the sliding seat 3 facing away from the fixed seat 2. A positioning groove 511 is provided circumferentially at the front end of the adjusting bolt 51. The front end of the adjusting bolt 51 abuts against the bottom wall of the positioning groove 511 and the bottom wall of the receiving groove 35. A spring 512 is also sleeved on the outside of the adjusting bolt 51. One end of the spring 512 abuts against the outer wall of the connecting seat 5, and the other end extends into the receiving groove 35 and abuts against the bottom wall of the receiving groove 35.

[0029] Combination Figure 5 Each fixing post 31 has a flared groove 311 at its front end. The groove 311 is preferably V-shaped and extends through both sides of the fixing post 31. This allows the front end of the fixing seat 2 to form vertically spaced support portions on both sides of the groove 311. On the opposite side wall of the two fixing posts 31, there is a relief surface 312 that connects to the front edge of the fixing seat 2. The relief surface 312 is inclined outward relative to the side wall of the slide rail 4. In addition, the front end of each fixing post 31 is also inclined. Specifically, the front end of each fixing post 31 is inclined outward relative to the side wall of the slide rail 4. However, it should be noted that the inclination angle of the front end of the fixing post 31 is greater than the inclination angle of the relief surface 312.

[0030] Operating principle: The worker places the water meter housing on the base plate 1 and moves the sliding seat 3 closer to the fixed seat 2 along the slide rail 4 by turning the adjusting bolt 51. In this state, one side of the water meter housing is embedded in the limiting groove 21 opened on the fixed seat 2, and the other side is pressed against the front ends of the two fixing posts 31 (since the adjusting bolt 51 and the connecting seat 5 are threaded, the locking force of the threaded engagement can prevent the sliding seat 3 from retracting). It is worth mentioning that the front ends of each fixing post 31 are supported by two supports protruding from the slot 311. The support and the outer wall of the water meter housing on the side opposite to the fixed base 2 abut against each other, so that the outer wall of the water meter housing on this side, located between the two support parts, is embedded in the slot 311 and abuts against the groove wall of the slot 311. In addition, during the entire operation, one end of the spring 512 always abuts against the connecting seat 5, and the other end always abuts against the sliding seat 3. Since the connecting seat 5 is fixed, the sliding seat 3 can always abut against the outer wall of the water meter housing with appropriate force through the fixed column 31 under the influence of elastic force, so as to ensure that the water meter housing is firmly positioned on the base plate 1 in the horizontal and vertical directions.

[0031] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0032] Although this document frequently uses terms such as base plate 1, fixed seat 2, limiting groove 21, sliding seat 3, fixed column 31, slot 311, clearance surface 312, threaded hole 313, slider 32, slide rail 4, connecting seat 5, adjusting bolt 51, positioning groove 511, and spring 512, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A positioning structure for water meter housing assembly process, comprising a base plate (1), a fixing seat (2) with a limiting groove (21) on its side wall fixed on the base plate (1), and a sliding seat (3) slidably connected to the base plate (1), which is always opposite to and can be positioned relative to the opening of the limiting groove (21), and a fixing post (31) connected to the outer wall of the sliding seat (3) facing the limiting groove (21), characterized in that, The rear end of the fixed column (31) is connected and fixed to the sliding seat (3), and the front end is provided with a slot (311) along the horizontal direction. The slot (311) is provided through the side walls on both sides of the fixed column (31), and the slot opening of the slot (311) and the slot opening of the limiting groove (21) are arranged opposite to each other.

2. The positioning structure for water meter housing assembly process according to claim 1, characterized in that, The slot (311) is flared.

3. The positioning structure for water meter housing assembly process according to claim 2, characterized in that, The base plate (1) is rectangular. The fixing seat (2) is fixed to one edge of the base plate (1). A slide rail (4) is fixed on the base plate (1) facing the opening of the limiting groove (21). A slider (32) is fixed at the bottom of the sliding seat (3). The slider (32) is slidably connected to the slide rail (4). There are two fixing columns (31) located on both sides of the slide rail (4).

4. The positioning structure for water meter housing assembly process according to claim 3, characterized in that, The two fixed columns (31) have a relief surface (312) on one side wall facing each other, which is adjacent to the front edge of the fixed column (31), and the two relief surfaces (312) are inclined outward relative to the side wall of the slide rail (4).

5. The positioning structure for water meter housing assembly process according to claim 3 or 4, characterized in that, The front end faces of the two fixed columns (31) are inclined outward relative to the side wall of the slide rail (4).

6. The positioning structure for water meter housing assembly process according to claim 5, characterized in that, Each of the fixed columns (31) has a threaded hole (313) at its rear end. The sliding seat (3) has two through holes (33) arranged axially along the slide rail (4) on its outer wall opposite to the fixed seat (2). The fixed column (31) and the sliding seat (3) are bolted together and locked by bolts through the through holes (33) and the threaded holes (313).

7. The positioning structure for water meter housing assembly process according to claim 6, characterized in that, The other end of the base plate (1) is fixed with a connecting seat (5). An adjusting bolt (51) arranged axially along the slide rail (4) is screwed onto the connecting seat (5). The front end of the adjusting bolt (51) is provided with a positioning groove (511) along the circumferential direction. The sliding seat (3) is provided with a channel (34) arranged axially along the slide rail (4). The front end of the adjusting bolt (51) passes through the channel (34) and its outer peripheral wall fits against the inner peripheral wall of the channel (34). The bottom wall of the positioning groove (511) abuts against the sliding seat (3).

8. The positioning structure for water meter housing assembly process according to claim 7, characterized in that, The sliding seat (3) has a receiving groove (35) on the outer wall of the side facing away from the fixed seat (2) surrounding the port of the channel (34). The bottom wall of the positioning groove (511) abuts against the bottom wall of the receiving groove (35). The adjusting bolt (51) is fitted with a spring (512). One end of the spring (512) abuts against the outer wall of the connecting seat (5), and the other end abuts against the bottom wall of the receiving groove (35).

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