Detection tool for detecting valve handle connecting hole and handle appearance

Abstract

The utility model discloses a detection tool for detecting the appearance of a valve handle connecting hole and a handle. The detection tool comprises a detection tool main body, a handle, a plug-in unit and a go-no go gauge. A placement groove is formed in one end of the detection tool main body, and a detection through hole is formed in the other end of the detection tool main body; one end of the handle is arranged in the placing groove, the other end of the handle is arranged on the detection tool main body, and a connecting hole in the handle is opposite to the detection through hole; the plug-in unit is used for being inserted into the detection tool main body so as to detect whether the appearance of the handle placed in the placing groove reaches the standard or not; the go-no go gauge is sequentially inserted into the connecting hole and the detection through hole and is used for detecting whether the size of the connecting hole of the handle reaches the standard or not. By adopting the testing fixture, the structure is simple, the structural characteristics of the product handle can be completely simulated, the connecting hole and the appearance of the handle product are integrated on one testing fixture, the uniformity of the quality and the appearance of the product is ensured, the requirements of customers are well met, and the trust of the customers is met.

Description

Technical Field

[0001] The utility model relates to the technical field of handles, in particular to a checking tool used for detecting a valve handle connection hole and a handle shape. Background Art

[0002] In the field of industrial valves, valve handles are one of the key components to achieve valve operation. Valve handles are widely used in various valve equipment due to their simple structure and convenient operation. These handles are usually made of 304 stainless steel using investment casting technology to ensure their durability and corrosion resistance.

[0003] However, despite the advantages of investment casting, the process also faces some challenges when producing slender valve handles. Especially when using wax patterns for casting, the product is prone to deformation during cooling and solidification due to the characteristics of the wax pattern material and the thermal stress during the casting process. This deformation manifests as the handle being inconsistent left and right or high and low, resulting in dimensional deviation and affecting the consistency of product size.

[0004] Dimensional inconsistency not only affects the appearance quality of the product, but more importantly, it may affect the overall performance and assembly accuracy of the valve. If the handle and the valve do not fit tightly or there is a dimensional deviation, it may cause the valve to operate unsmoothly and even affect the sealing and safety of the entire system.

[0005] Traditional inspection methods, such as simple visual inspection or manual measurement, may not be able to accurately identify these subtle dimensional deviations. In addition, these methods rely on the operator's experience and skills, and the inspection results may be subjective, which cannot meet the high requirements for consistency and reliability in large-scale production. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model provides a checking tool for checking a valve handle connection hole and a handle shape.

[0007] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0008] The utility model provides a check tool for checking the valve handle connection hole and the handle shape, comprising: a check tool body, a handle, a plug-in unit, and a go / no-go gauge;

[0009] The main body of the inspection tool is provided with a placement groove at one end and a detection through hole at the other end;

[0010] One end of the handle is placed in the placement groove, and the other end is arranged on the gauge body, and the connection hole on the handle is opposite to the detection through hole;

[0011] The plug-in is used to be inserted into the main body of the inspection tool, so as to detect whether the shape of the handle placed in the placement groove meets the standard;

[0012] The go / no-go gauge is inserted into the connecting hole and the detection through hole in sequence to detect whether the size of the connecting hole of the handle meets the standard.

[0013] Preferably, the gauge body comprises a fixed block, a connecting block connected to the bottom of the fixed block and extending outward, and an inclined block arranged on the top of the connecting block;

[0014] Preferably, the top of the fixed block is provided with the placement groove; the vertical surface of the inclined block is fixed to the fixed block, and the inclined surface of the inclined block is connected to the placement groove on the fixed block.

[0015] Preferably, the connection block is provided with the detection through hole, one end of the handle is placed in the placement groove, and the other end is arranged along the inclined surface with its head placed on the connection block.

[0016] Preferably, four plug-in inserting blocks extending upward are further provided on the top of the fixing block, the four plug-in inserting blocks are arranged opposite to each other in pairs, and an inserting hole is provided on each of the plug-in inserting blocks.

[0017] Preferably, the plug-in includes a first latch and a second latch.

[0018] Preferably, the go / no-go gauge comprises a hand-held portion, a connecting hole no-go gauge portion connected to the hand-held portion, and a connecting hole go / no-go gauge portion connected to the connecting hole no-go gauge portion.

[0019] Preferably, the handle portion is circular in shape, and a roll-back thread is provided on the side wall.

[0020] Preferably, after the connection hole stop gauge portion is connected to the connection hole through gauge portion, a limiting step is formed on the connection hole stop gauge portion to limit the connection hole stop gauge portion from passing through the connection hole on the handle.

[0021] The technical solution of the utility model has the following beneficial effects:

[0022] The utility model adopts a simple inspection tooling structure, can completely simulate the structural characteristics of the product handle, integrate the connection hole and the shape of the handle product into one inspection tool, ensure the uniformity of the product quality and appearance, well meet the requirements of customers, and win the trust of customers.

[0023] The utility model can improve the detection accuracy. Through the specially designed inspection tooling, the size of the handle can be accurately measured and verified to ensure that each product strictly meets the specification requirements of the design drawings; at the same time, the use of the inspection tooling reduces the error caused by manual inspection, improves the consistency of product size, and thus ensures the stability of product quality. The inspection tooling can effectively detect deformation problems in the production process, reduce the scrap rate caused by deformation, and improve material utilization.

[0024] The utility model can improve assembly accuracy: precise size control ensures the precise fit between the handle and the valve, thereby improving the assembly accuracy and overall performance of the valve; the integrated detection method simplifies the detection process, reduces the detection time, speeds up the production rhythm, and improves production efficiency; the use of inspection tools with a high degree of automation reduces dependence on professional operators and reduces labor costs and training costs.

[0025] The utility model improves the satisfaction and loyalty of end users by ensuring the high standard quality of valve handles, and helps to establish a good brand image of the company; the inspection tooling is flexible in design, can adapt to the inspection needs of handles of different specifications and shapes, and has good versatility and expansibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is an exploded view of the utility model;

[0028] Figure 3 This is a schematic diagram of the main structure of the utility model inspection tool;

[0029] Figure 4 It is a schematic diagram of the structure of the go / no-go gauge of the utility model. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] Reference Figures 1 to 4 The utility model provides a check fixture for detecting the valve handle connection hole and the handle shape, comprising: a check fixture body 1, a handle 3, a plug-in 2, and a go / no-go gauge 4;

[0036] The gauge body 1 has a placement groove 105 at one end and a detection through hole 106 at the other end.

[0037] One end of the handle 3 is placed in the placement groove 105, and the other end is arranged on the inspection tool body 1, and the connection hole 301 on the handle 3 is opposite to the detection through hole 106, wherein the placement groove 105 is used to fix the qualified product handle 105 and ensure its accurate position, and secondly, it can be used to detect whether the outer dimensions of the handle 3 meet the standards. If it cannot be placed in the placement groove 105, the outer dimensions of the handle 3 are not up to standard, which can be used as the first step to detect the handle shape.

[0038] The plug-in 2 is used to be inserted into the main body of the inspection tool, so as to detect whether the shape of the handle 3 placed in the placement groove 105 meets the standard;

[0039] The go / no-go gauge 4 is inserted into the connecting hole 301 and the detection through hole 106 in sequence to detect whether the size of the connecting hole 301 of the handle 3 meets the standard. The detection through hole 106 is opposite to the connecting hole 301 of the handle 3 and is used for inserting the go / no-go gauge 4 to detect the size of the connecting hole.

[0040] The gauge body 1 includes a fixed block 101, a connecting block 102 connected to the bottom of the fixed block 101 and extending outward, and an inclined block 103 arranged on the top of the connecting block 102; the top of the fixed block 101 is provided with the placement groove 105; the vertical surface of the inclined block 103 is fixed to the fixed block 101, and the inclined surface of the inclined block 101 is connected to the placement groove 105 on the fixed block 101. The connecting block 102 is provided with the detection through hole 106, one end of the handle 3 is placed in the placement groove 105, and the other end is arranged along the inclined surface and its head is placed on the connecting block 102. In this embodiment, the main body 1 of the gauge is used to fix and support the handle 3 to ensure the accuracy of the detection process; the fixed block 101 serves as the base of the main body of the gauge, providing stability and support for the entire gauge structure. The stability of the fixed block 101 ensures that the position of the handle is fixed during the detection process, reduces errors, and improves the detection accuracy. The connecting block 102 extends from the bottom of the fixed block, providing further structural expansion and functional connection points. The design of the connecting block allows additional functional components to be added to the main body of the gauge, such as the detection through hole 106, to provide necessary structural support for the shape and size detection of the handle. The tilting block 103 is arranged on the top of the connecting block 102, providing an inclined surface, and the handle can be placed along this inclined surface. The design of the tilting block allows one end of the handle to smoothly transition from the placement groove 105 to the connecting block 102, which is convenient for the positioning and detection of the handle. In addition, the inclined surface of the tilting block is connected to the placement groove 105 on the fixed block, which helps to achieve accurate detection of the handle's external dimensions.

[0041] Furthermore, the top of the fixed block 101 is provided with four plug-in blocks 104 extending upwards, and the four plug-in blocks 104 are arranged opposite to each other in pairs, and each plug-in block 104 is provided with an insertion hole 1040 for inserting the plug-in 2, and the plug-in 2 includes a latch 1 and a latch 2, which are used to detect the external dimensions of the handle 3. The latch 1 and the latch 2 are used to insert the insertion hole 1040, which corresponds to the top of the handle 3 external shape, and are used to detect whether the size of this part meets the standard. Through the insertion of the latch 1 and the latch 2, the key dimensions of the handle external shape can be accurately detected to ensure the accuracy and consistency of the external dimensions. If the latch 1 and the latch 2 can be inserted, the handle is qualified, and if it cannot be inserted (the top dimension of the handle external shape is too high, blocking the relative insertion hole 1040), correction is required.

[0042] Furthermore, the through-and-no-go gauge 4 includes a handheld portion 401, a connecting hole through-and-no-go gauge portion 402 connected to the handheld portion 401, and a connecting hole through-and-no-go gauge portion 403 connected to the connecting hole through-and-no-go gauge portion 402; the handheld portion 401 is circular, and a roll-back thread is provided on the side wall, which is convenient for human hand holding and improves the comfort and stability during use. The knurled thread on the side wall increases the friction force, prevents sliding during use, and ensures the safety of operation; after the connecting hole through-and-no-go gauge portion 402 is connected to the connecting hole through-and-no-go gauge portion 403, a limited step position 4020 is formed on the connecting hole through-and-no-go gauge portion 402, which is used to limit the connecting hole through-and-no-go gauge portion 402 from passing through the connecting hole 301 on the handle 3.

[0043] In this embodiment, the connection hole stop gauge portion 402 is used to detect whether the connection hole 301 on the handle 3 has reached the maximum size of the design, that is, whether it is "stopped" properly. By detecting the connection hole stop gauge portion 402, it can be ensured that the connection hole 402 is not too large, thereby avoiding looseness or mismatching during assembly, and ensuring the assembly accuracy and reliability of the valve handle. The connection hole through gauge portion 403 is used to detect whether the connection hole 301 on the handle 3 has reached the minimum size of the design, that is, whether it can be "passed". The connection hole through gauge portion 403 ensures that the connection hole 301 is not too small, thereby ensuring that the corresponding parts can be smoothly inserted during assembly and meeting basic assembly requirements. Limiting step 4020 (formed on the connecting hole stop gauge portion 402): The limiting step 4020 is used to limit the connecting hole stop gauge portion 402 from passing through the connecting hole 301 on the handle 3, ensuring that the connecting hole stop gauge portion 402 is not over-inserted during testing, thereby preventing over-insertion of the stop gauge portion 4020, protecting the connecting hole 301 being tested from damage, and also ensuring the accuracy of the test results.

[0044] Working principle of this utility model:

[0045] Put the shaped product handle 3 into the main body of the inspection fixture, and then use the go / no-go gauge 4 to first check whether the connecting hole 301 is through, that is, the through gauge part 403 of the connecting hole can pass through the connecting hole 301 of the product handle 3, and the no-go gauge part 402 of the connecting hole cannot pass; then insert the first and second pins in turn to check whether the appearance of the handle 3 meets the standard. If it can be inserted, it is qualified, and if it cannot be inserted, it will be calibrated; after passing the test, pull out the first and second pins, pull out the go / no-go gauge 4, take out the product handle 3, and complete the inspection.

[0046] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A test fixture for testing the valve handle connection hole and handle shape, characterized in that: include: Check fixture body, handle, plug-in, go / no-go gauge; The main body of the inspection tool is provided with a placement groove at one end and a detection through hole at the other end; One end of the handle is placed in the placement groove, and the other end is arranged on the gauge body, and the connection hole on the handle is opposite to the detection through hole; The plug-in is used to be inserted into the main body of the inspection tool, so as to detect whether the shape of the handle placed in the placement groove meets the standard; The go / no-go gauge is inserted into the connecting hole and the detection through hole in sequence to detect whether the size of the connecting hole of the handle meets the standard.

2. The inspection tool for inspecting the valve handle connection hole and the handle shape according to claim 1, characterized in that: The gauge body comprises a fixed block, a connecting block connected to the bottom of the fixed block and extending outward, and an inclined block arranged on the top of the connecting block.

3. The inspection tool for inspecting the valve handle connection hole and the handle shape according to claim 2, characterized in that: The top of the fixed block is provided with the placement groove; the vertical surface of the inclined block is fixed to the fixed block, and the inclined surface of the inclined block is communicated with the placement groove on the fixed block.

4. The inspection tool for inspecting the valve handle connection hole and the handle shape according to claim 3, characterized in that: The connecting block is provided with the detecting through hole, one end of the handle is placed in the placing groove, and the other end is arranged along the inclined surface and the head thereof is placed on the connecting block.

5. The inspection tool for inspecting the valve handle connection hole and the handle shape according to claim 3, characterized in that: The top of the fixing block is also provided with four plug-in inserting blocks extending upwards, the four plug-in inserting blocks are arranged opposite to each other in pairs, and each of the plug-in inserting blocks is provided with an inserting hole.

6. The inspection tool for inspecting the valve handle connection hole and the handle shape according to claim 5, characterized in that: The plug-in unit comprises a first latch and a second latch.

7. The inspection tool for inspecting the valve handle connection hole and the handle shape according to claim 1, characterized in that: The go / no-go gauge comprises a hand-held portion, a connecting hole no-go gauge portion connected to the hand-held portion, and a connecting hole go / no-go gauge portion connected to the connecting hole no-go gauge portion.

8. The inspection tool for inspecting the valve handle connection hole and the handle shape according to claim 7, characterized in that: The handle portion is circular in shape, and a roll-back thread is arranged on the side wall.

9. The inspection tool for inspecting the valve handle connection hole and the handle shape according to claim 7, characterized in that: After the connection hole stop gauge part is connected with the connection hole through gauge part, a limited step position is formed on the connection hole stop gauge part, which is used to limit the connection hole stop gauge part from passing through the connection hole on the handle.

Images