Efficient and labor-saving thread plug gauge

Abstract

The utility model provides a kind of efficient labor-saving thread plug gauge, belong to thread plug gauge technical field.The technical scheme of efficient labor-saving thread plug gauge is, including plug gauge main body, still including handle mechanism, plug gauge main body includes plug gauge connecting column, plug gauge connecting column extends along first direction, and the both ends of plug gauge connecting column along first direction are equipped with through end plug gauge piece and end plug gauge piece respectively, handle mechanism includes fixed rod body and handle part, one end of fixed rod body is connected with plug gauge connecting column, other end is connected with handle part, fixed rod body extends along second direction, handle part extends along first direction, first direction and second direction intersect, and there is force space between handle part and plug gauge connecting column.The utility model connects fixed rod body and handle part on plug gauge connecting column, lengthens the force arm of rotating plug gauge connecting column, effectively reduces the force required to be exerted in rotation, reduces labor intensity, improves detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of thread plug gauge technology, and in particular to a high-efficiency and labor-saving thread plug gauge. Background Technology

[0002] A thread plug gauge is a precision measuring tool used to measure the dimensions of internal threads. It determines whether the internal thread dimensions are within acceptable limits. Thread plug gauges generally include a go gauge and a no-go gauge. The go gauge checks the minimum limit dimension of the thread. If the go gauge can be screwed into the threaded hole being tested, it indicates that the minor diameter, pitch diameter, and major diameter of the thread are not less than their minimum limit dimensions. The no-go gauge checks the maximum limit dimension of the thread. If the no-go gauge cannot be screwed into or can only be screwed into no more than a specified number of turns (e.g., stopping within 3 turns from the end face), it indicates that the minor diameter, pitch diameter, and major diameter of the thread are not greater than their maximum limit dimensions. Thread plug gauges are based on the basic parameters of the thread (such as pitch, thread angle, pitch diameter, etc.). By matching the thread being tested with the go gauge and the different passage conditions of the no-go gauge, it is determined whether the thread is within the specified tolerance range.

[0003] According to TG / CL224-2016 "Rules for Assembly, Inspection and Management of Railway Freight Car Axles", after the bolt holes at the ends of railway freight car axles are machined, the bolt holes must be inspected with thread plug gauges. When testing with a GO thread plug gauge, the bolt holes must be fully engaged. When testing with a GO thread plug gauge, the bolt holes must stop within 3 turns from the end face, and the GO gauge must not have significant wobble. Each railway freight car axle has three bolt holes at each end, and all six bolt holes on each axle must be tested with thread plug gauges, especially the GO thread plug gauge, which must be fully engaged.

[0004] In traditional thread plug gauges, the shank between the go and no-go gauges serves as a handle, which the inspector holds to tighten. However, during testing, the RE... 2B Taking shaft type as an example, the thread length of a single threaded hole is 40mm to 45mm. When using a go end thread plug gauge, it is necessary to hold the hexagonal handle of the thread plug gauge and rotate it at least 12 times to fully screw it in. Moreover, as the screwing depth increases, the rotation resistance increases continuously. When facing the testing work of a large number of shaft end bolt hole go end thread plug gauges, the labor intensity is extremely high. Long-term operation can easily lead to fatigue of the testing personnel, which may cause errors in the testing operation and reduce the testing efficiency. Utility Model Content

[0005] This invention addresses the problem of slow and labor-intensive testing speed when using thread plug gauges to inspect threaded holes at the axle ends of railway freight cars, and proposes a more efficient and labor-saving thread plug gauge.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a high-efficiency and labor-saving thread plug gauge, including a plug gauge body and a handle mechanism. The plug gauge body includes a plug gauge connecting post, which extends along a first direction, and both ends of the plug gauge connecting post along the first direction are respectively provided with a go end plug gauge and a no-go end plug gauge. The handle mechanism includes a fixed rod and a handle part. One end of the fixed rod is connected to the plug gauge connecting post, and the other end is connected to the handle part. The fixed rod extends along a second direction, and the handle part extends along the first direction. The first and second directions intersect, and there is a force application space between the handle part and the plug gauge connecting post.

[0008] Furthermore, the first direction and the second direction are perpendicular.

[0009] Furthermore, the handle portion includes a handle rod and a flexible handle sleeve. The handle rod extends along a first direction and is connected to a fixed rod. The flexible handle sleeve is fitted onto the handle rod. A limiting member is connected to the end of the handle rod away from the fixed rod. The limiting member is used to restrict the flexible handle sleeve between the limiting member and the fixed rod.

[0010] Furthermore, the end of the handle rod away from the fixed rod is provided with a first threaded hole, which extends along a first direction. The limiting component includes a limiting bolt, one end of which is provided with a limiting boss. The limiting bolt is engaged with the first threaded hole, and the diameter of the limiting boss is larger than the inner diameter of the flexible handle sleeve.

[0011] Furthermore, the outer surface of the flexible handle cover is provided with anti-slip texture.

[0012] Furthermore, the fixed rod body has a first threaded portion at one end relative to the plug gauge connecting post, and the handle rod body has a second threaded hole that mates with the first threaded portion at one end. The fixed rod body and the handle rod body are detachably connected through the first threaded portion and the second threaded hole.

[0013] Furthermore, the fixed rod body has a second threaded part at one end relative to the handle, and the plug gauge connecting post has a third threaded hole that mates with the second threaded part. The fixed rod body and the plug gauge connecting post are detachably connected through the second threaded part and the third threaded hole.

[0014] Furthermore, multiple third threaded holes are provided, and these multiple third threaded holes are evenly spaced along the circumference of the plug gauge connecting post.

[0015] Furthermore, the fixed rod includes a first section and a second section. One end of the first section is connected to the plug gauge connecting post, and one end of the second section is connected to the handle. The end of the first section away from the plug gauge connecting post is provided with a receiving cavity extending in the second direction. The second section is movably connected in the receiving cavity. The second section can extend and retract relative to the first section in the second direction to adjust the size of the force application space.

[0016] Furthermore, the inner wall of the receiving cavity is provided with a plurality of uniformly spaced limiting through holes along the second direction, and the second section is provided with an elastic limiting post, which can move radially along the second section so that the elastic limiting post can be inserted into or separated from the limiting through holes.

[0017] As can be seen from the above technical solutions, the advantages of this utility model are:

[0018] This invention connects a fixed rod and a handle to a plug gauge connecting post. The extension direction of the fixed rod intersects the extension direction of the plug gauge connecting post, while the extension direction of the handle is consistent with the extension direction of the plug gauge connecting post. This lengthens the lever arm for rotating the plug gauge connecting post, effectively reducing the force required for rotation, lowering labor intensity, and reducing operator fatigue. It also provides operators with sufficient grip space, avoiding errors caused by hand tremors or uneven force, thus improving the accuracy and reliability of the test results. Furthermore, it allows operators to rotate the handle more easily and quickly, significantly shortening testing time and increasing testing efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the thread plug gauge in one embodiment of the present invention;

[0021] Figure 2 This is a partial cross-sectional schematic diagram of the thread plug gauge in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the thread plug gauge in another embodiment of the present invention;

[0023] Figure 4 This is a partial structural cross-sectional schematic diagram of the thread plug gauge in another embodiment of the present invention.

[0024] Explanation of key figure labels:

[0025] 100. Plug gauge body; 110. Plug gauge connecting post; 111. Third threaded hole; 120. Go end plug gauge part; 130. No-go end plug gauge part; 200. Handle mechanism; 210. Fixed rod body; 211. First threaded part; 212. Second threaded part; 213. First section; 2131. Receiving cavity; 2132. Limiting through hole; 214. Second section; 2141. Elastic limiting post; 220. Handle part; 221. Handle rod body; 2211. First threaded hole; 2212. Second threaded hole; 222. Flexible handle sleeve; 2221. Anti-slip texture; 223. Limiting element; 2231. Limiting bolt; 2232. Limiting boss; 230. Force application space. Detailed Implementation

[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0027] Example 1

[0028] Please see Figures 1-2 A high-efficiency and labor-saving thread plug gauge includes a plug gauge body 100 and a handle mechanism 200. The plug gauge body 100 includes a plug gauge connecting post 110, which extends along a first direction. Both ends of the plug gauge connecting post 110 along the first direction are respectively provided with a go end plug gauge 120 and a no-go end plug gauge 130. The handle mechanism 200 includes a fixed rod body 210 and a handle part 220. One end of the fixed rod body 210 is connected to the plug gauge connecting post 110, and the other end is connected to the handle part 220. The fixed rod body 210 extends along a second direction, and the handle part 220 extends along the first direction. The first and second directions intersect, and there is a force application space 230 between the handle part 220 and the plug gauge connecting post 110.

[0029] In this embodiment, as Figure 1As shown, the plug gauge connecting post 110 can be a hexagonal prism structure, with its first direction being its axial direction. At both axial ends of the plug gauge connecting post 110, there are respectively a through plug gauge 120 and a no-go plug gauge 130. The extension directions of the through plug gauge 120 and the no-go plug gauge 130 are uniform and consistent with the extension direction of the plug gauge connecting post 110, and the through plug gauge 120 and the no-go plug gauge 130 are coaxially arranged with the plug gauge connecting post 110. Furthermore, a fixing rod 210 is connected to the side end face of the plug gauge connecting post 110 located between the through plug gauge 120 and the no-go plug gauge 130. The axial direction of the fixing rod 210 is the second direction. The direction, wherein the second direction is intersected with the first direction, one end of the fixed rod 210 along its own axial direction is connected to the plug gauge connecting post 110, and the other end is connected to the handle part 220, wherein the handle part 220 extends along the first direction, that is, the extension direction of the handle part 220 is consistent with the extension direction of the plug gauge connecting post 110, and since the extension direction of the fixed rod 210 intersects the extension direction of the plug gauge connecting post 110, there is a force application space 230 between the handle part 220 and the plug gauge connecting post 110 in the radial direction of the plug gauge connecting post 110, so that the inspection personnel can hold it or connect other force application equipment.

[0030] During use, the inspector aligns the go end plug gauge 120 or the no-go end plug gauge 130 of the plug gauge body 100 with the entrance of the threaded hole, depending on the specific condition of the threaded hole being inspected. At this time, it is necessary to ensure that the axis of the plug gauge and the threaded hole coincides as much as possible to ensure the smooth progress of the subsequent inspection process. The inspector places their hand on the handle 220, utilizing the force application space 230 between the handle 220 and the plug gauge connecting post 110 to grip the handle 220. Then, by rotating their hand, the inspector causes the handle 220 to rotate around the axis of the plug gauge connecting post 110, i.e., in the first direction, thereby causing the plug gauge connecting post 110 to rotate around its own axis, causing the go end plug gauge 120 or the no-go end plug gauge to rotate within the threaded hole.

[0031] In the above structure, by connecting a fixed rod 210 and a handle 220 to the plug gauge connecting post 110, wherein the extension direction of the fixed rod 210 intersects the extension direction of the plug gauge connecting post 110, and the extension direction of the handle 220 is consistent with the extension direction of the plug gauge connecting post 110, the lever arm for rotating the plug gauge connecting post 110 is lengthened, effectively reducing the force required for rotation, reducing labor intensity, and reducing the fatigue of the inspector. At the same time, it provides the inspector with a force application space 230 for gripping, avoiding inspection errors caused by hand tremors or uneven force, improving the accuracy and reliability of the inspection results, and allowing the inspector to rotate the handle 220 more easily and quickly, greatly shortening the inspection time and improving the inspection efficiency.

[0032] Specifically, the first direction and the second direction are perpendicular. In this embodiment, the extension direction of the fixed rod 210 is perpendicular to the extension direction of the plug gauge connecting post 110, which further increases the size of the force application space 230 for gripping, and the structural layout is more ergonomic. When using it, the inspector can place their hand on the handle 220 more naturally and perform rotation operation in a comfortable posture. At the same time, the perpendicular structure allows the fixed rod 210 to transmit the force applied by the inspector to the handle 220 to the plug gauge body 100 in a more direct and effective manner, reducing the loss of force in the transmission and further achieving the effect of saving effort.

[0033] In the specific structure of the handle portion 220, such as Figure 1 , Figure 2 As shown, the handle portion 220 includes a handle rod 221 and a flexible handle sleeve 222. The handle rod 221 extends along a first direction and is connected to a fixed rod 210. The flexible handle sleeve 222 is fitted onto the handle rod 221. A limiting member 223 is connected to the end of the handle rod 221 away from the fixed rod 210. The limiting member 223 is used to at least restrict the flexible handle sleeve 222 between the limiting member 223 and the fixed rod 210. In addition, a first threaded hole 2211 is provided at the end of the handle rod 221 away from the fixed rod 210. The first threaded hole 2211 extends along the first direction. The limiting member 223 includes a limiting bolt 2231. A limiting boss 2232 is provided at one end of the limiting bolt 2231. The limiting bolt 2231 is engaged with the first threaded hole 2211. The diameter of the limiting boss 2232 is larger than the inner diameter of the flexible handle sleeve 222. In particular, the outer surface of the flexible handle sleeve 222 is provided with anti-slip texture 2221.

[0034] In this embodiment, the axial direction of the handle rod 221 is the second direction. One end of the handle rod 221 along its own axial direction is connected to one end of the fixed rod 210, so that the handle rod 221 is arranged parallel to the plug gauge connecting post 110. A flexible handle sleeve 222 is fitted on the outer surface of the handle rod 221. The flexible handle sleeve 222 is made of flexible material such as rubber or silicone, thereby improving the comfort of the testing personnel's grip. The inner diameter of the flexible handle sleeve 222 matches the diameter of the handle rod 221, which facilitates flexible grip. The handle sleeve 222 is fitted onto or removed from the handle rod 221. In addition, a limiting member 223 is connected to one end of the handle rod 221 that is connected to the fixed rod 210. After the flexible handle sleeve 222 is fitted onto the handle rod 221, the limiting member 223 is connected to the handle rod 221 so that the limiting member 223 restricts the movement of the flexible handle sleeve 222 on the handle rod 221, so that the flexible handle sleeve 222 is always kept in the optimal grip position, providing a stable and reliable force application point for the testing personnel. The limiting component 223 includes a limiting bolt 2231, one end of which has a limiting boss 2232. The diameter of the limiting boss 2232 is larger than the inner diameter of the flexible handle sleeve 222. A first threaded hole 2211 extending axially is formed on the end face of the handle rod 221. During installation, the limiting bolt 2231 is threaded into the first threaded hole 2211, causing the limiting boss 2232 to fit against one end of the flexible handle sleeve 222, thereby confining the flexible handle sleeve 222 between the limiting boss 2232 and the fixed rod 210. In addition, the outer surface of the flexible handle sleeve 222 is provided with anti-slip texture 2221. This anti-slip texture 2221 can be regular raised and recessed stripes, a grid pattern, or other anti-slip structures, thereby increasing the friction between the inspector's hand and the handle sleeve.

[0035] In the above structure, by fitting a flexible handle sleeve 222 onto the handle rod 221, the pressure and discomfort caused to the hands during long-term operation can be effectively reduced, which helps to reduce the fatigue of the testing personnel and make the testing work more durable and efficient. The anti-slip texture 2221 on the outer surface of the flexible handle sleeve 222 increases the friction between the hand and the flexible handle sleeve 222, so that the testing personnel can hold the handle part 220 steadily even when their hands are sweaty or in other slippery environments, avoiding loss of control of the thread plug gauge due to hand slippage. The flexible handle sleeve 222 is limited by the threaded connection between the limiting bolt 2231 and the handle rod 221, which facilitates the installation and removal of the flexible handle sleeve 222 and reduces maintenance costs and maintenance difficulty.

[0036] In the connection structure of the fixed rod 210 and the handle rod 221, the fixed rod 210 has a first threaded part 211 at one end relative to the plug gauge connecting post 110, and the handle rod 221 has a second threaded hole 2212 that is connected to the first threaded part 211. The fixed rod 210 and the handle rod 221 are detachably connected through the first threaded part 211 and the second threaded hole 2212.

[0037] In this embodiment, as Figure 2 As shown, a first threaded portion 211 is provided at one end of the fixed rod 210, and correspondingly, a second threaded hole 2212 is provided at one end of the handle rod 221. The second threaded hole 2212 extends in the radial direction of the handle rod 221 to form a through hole structure and corresponds to the first threaded portion 211. When it is necessary to assemble the fixed rod 210 and the handle rod 221, the second threaded hole 2212 of the handle rod 221 is aligned with the first threaded portion 211 of the fixed rod 210, and the handle rod 221 is rotated so that the first threaded portion 211 is gradually screwed into the second threaded hole 2212 to connect the two together.

[0038] The above structure allows for detachable connection of the fixed rod 210 and the handle rod 221 using a threaded connection, enabling them to be separated when not in use. This facilitates storage in a dedicated tool bag or storage box, greatly saving storage space and making it convenient to carry and store.

[0039] In the connection structure between the fixed rod 210 and the plug gauge connecting post 110, the fixed rod 210 is provided with a second threaded part 212 at one end relative to the handle part 220, and the plug gauge connecting post 110 is provided with a third threaded hole 111 that is connected to the second threaded part 212. The fixed rod 210 and the plug gauge connecting post 110 are detachably connected through the second threaded part 212 and the third threaded hole 111.

[0040] In this embodiment, as Figure 2 As shown, a second threaded portion 212 is provided at one end of the fixed rod 210 relative to the first threaded portion 211. The thread of the second threaded portion 212 matches the third threaded hole 111 on the plug gauge connecting post 110. The third threaded hole 111 extends radially along the plug gauge connecting post 110. When it is necessary to assemble the fixed rod 210 with the plug gauge connecting post 110, the second threaded portion 212 of the fixed rod 210 is aligned with the third threaded hole 111 of the plug gauge connecting post 110, and the fixed rod 210 is rotated so that the second threaded portion 212 is gradually screwed into the third threaded hole 111.

[0041] By using a threaded structure to detachably connect the fixed rod 210 and the plug gauge connecting post 110, the two can be separated during transportation and storage, effectively reducing the overall volume of the thread plug gauge, reducing the space required for transportation and storage, facilitating packaging and handling, and improving the convenience of transportation and storage.

[0042] Specifically, there are multiple third threaded holes 111, which are evenly spaced along the circumference of the plug gauge connecting post 110.

[0043] Multiple third threaded holes 111 are evenly spaced along the circumference of the plug gauge connecting post 110. These third threaded holes 111 are of uniform size and specifications, all matching the second threaded portion 212 on the fixed rod 210. The even distribution of these third threaded holes 111 along the circumference of the plug gauge connecting post 110 allows for selection of different positions of the third threaded holes 111 for connection based on the actual operating environment and testing requirements, thereby adjusting the angle of the handle mechanism 200. Multiple handle mechanisms 200 can also be connected to the plug gauge connecting post 110 as needed to increase the number of force application points and improve testing efficiency.

[0044] Example 2

[0045] Please see Figures 3-4 A high-efficiency and labor-saving thread plug gauge is described in this embodiment. The other structures are consistent with those in Embodiment 1, but the structure is different as follows: The fixed rod 210 includes a first section 213 and a second section 214. One end of the first section 213 is connected to the plug gauge connecting post 110, and one end of the second section 214 is connected to the handle part 220. The end of the first section 213 away from the plug gauge connecting post 110 is provided with a receiving cavity 2131 extending in the second direction. The second section 214 is movably connected in the receiving cavity 2131. The second section 214 can extend and retract relative to the first section 213 in the second direction to adjust the size of the force application space 230.

[0046] In this embodiment, one end of the first segment 213 is detachably threaded to the third threaded hole 111 on the plug gauge connecting post 110 via the second threaded portion 212. At the end of the first segment 213 away from the plug gauge connecting post 110, a receiving cavity 2131 extending in the second direction is machined inside. One end of the second segment 214 is detachably threaded to the second threaded hole 2212 on the handle rod 221 via the first threaded portion 211. The other end of the second segment 214 is adapted to the shape of the receiving cavity 2131 and can be inserted into the receiving cavity 2131 and move telescopically within the cavity. The telescopic movement of the second segment 214 within the receiving cavity 2131 is achieved by manual operation. When it is necessary to adjust the size of the force application space 230, the operator can hold the handle portion 220 and apply a pulling or pushing force in the second direction to the second segment 214, so that the second segment 214 telescopically moves relative to the first segment 213 within the receiving cavity 2131.

[0047] By setting up a structure where the first segment 213 and the second segment 214 are relatively telescopic, the size of the force application space 230 can be adjusted to accommodate different operators' hand sizes, arm lengths, and operating habits. This facilitates more precise control of rotational force and direction, improving the operator's user experience and comfort. Furthermore, in the inspection of bolt holes at the axle ends of railway freight cars, different working environments and axle installation positions may lead to differences in operating space. The telescopic fixed rod 210 can flexibly adjust the force application space 230 according to the space constraints of the actual inspection scenario.

[0048] Specifically, the inner wall of the receiving cavity 2131 is provided with a plurality of uniformly spaced limiting through holes 2132 along the second direction, and the second section 214 is provided with an elastic limiting post 2141. The elastic limiting post 2141 can move radially along the second section 214 so that the elastic limiting post 2141 can be inserted into or separated from the limiting through hole 2132.

[0049] On the inner wall of the receiving cavity 2131 of the first segment 213 of the fixed rod 210, a plurality of limiting through holes 2132 are evenly spaced along the second direction. The limiting through holes 2132 extend radially along the fixed rod 210. An elastic limiting post 2141 is provided on the second segment 214 of the fixed rod 210. The elastic limiting post 2141 can move radially along the second segment 214. The elastic limiting post 2141 integrates an elastic element (such as a spring) inside, so that it can automatically pop out by elastic force when no external force is applied, and maintain the state of being inserted with the limiting through hole 2132. When the second segment 214 moves telescopically within the receiving cavity 2131, the elastic limiting post 2141 will align with the limiting through hole 2132 at different positions in sequence as the position changes. When the desired extension length is reached, the elastic limiting post 2141 automatically pops out under the action of the internal elastic element and inserts into the corresponding limiting through hole 2132, thereby fixing the second segment 214 in this position and preventing it from sliding due to external force during the testing operation. If the extension length needs to be adjusted again, the operator only needs to press the elastic limiting post 2141 to retract it into the second segment 214, thereby releasing the limit and continuing the extension adjustment.

[0050] By using the elastic limiting post 2141 and the limiting through hole 2132 for interlocking, a stable and reliable fixing effect can be provided when the fixed rod 210 is adjusted to any telescopic length. This avoids affecting the accuracy of the test results due to the sliding of the fixed rod 210. The telescopic length can be adjusted by simply pressing the elastic limiting post 2141, making the operation simple and quick.

[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency and labor-saving thread plug gauge, comprising a plug gauge body (100), characterized in that, It also includes a handle mechanism (200). The plug gauge body (100) includes a plug gauge connecting post (110). The plug gauge connecting post (110) extends along a first direction, and the plug gauge connecting post (110) is provided with a through plug gauge (120) and a no-go plug gauge (130) at both ends along the first direction. The handle mechanism (200) includes a fixed rod body (210) and a handle part (220). One end of the fixed rod body (210) is connected to the plug gauge connecting post (110), and the other end is connected to the handle part (220). The fixed rod body (210) extends along a second direction, and the handle part (220) extends along the first direction. The first direction and the second direction intersect. There is a force application space (230) between the handle part (220) and the plug gauge connecting post (110).

2. The efficient and labor-saving thread plug gauge according to claim 1, characterized in that, The first direction and the second direction are perpendicular.

3. The efficient and labor-saving thread plug gauge according to claim 1, characterized in that, The handle portion (220) includes a handle rod (221) and a flexible handle sleeve (222). The handle rod (221) extends along the first direction and is connected to the fixed rod (210). The flexible handle sleeve (222) is fitted onto the handle rod (221). One end of the handle rod (221) away from the fixed rod (210) is connected to a limiting member (223). The limiting member (223) is at least used to restrict the flexible handle sleeve (222) between the limiting member (223) and the fixed rod (210).

4. The efficient and labor-saving thread plug gauge according to claim 3, characterized in that, The handle rod (221) has a first threaded hole (2211) at one end away from the fixed rod (210). The first threaded hole (2211) extends along the first direction. The limiting member (223) includes a limiting bolt (2231). One end of the limiting bolt (2231) has a limiting boss (2232). The limiting bolt (2231) is engaged with the first threaded hole (2211). The diameter of the limiting boss (2232) is larger than the inner diameter of the flexible handle sleeve (222).

5. The efficient and labor-saving thread plug gauge according to claim 3, characterized in that, The outer surface of the flexible handle sleeve (222) is provided with anti-slip texture (2221).

6. The efficient and labor-saving thread plug gauge according to claim 3, characterized in that, The fixed rod (210) has a first threaded part (211) at one end relative to the plug gauge connecting post (110), and the handle rod (221) has a second threaded hole (2212) at one end that mates with the first threaded part (211). The fixed rod (210) and the handle rod (221) are detachably connected through the first threaded part (211) and the second threaded hole (2212).

7. The efficient and labor-saving thread plug gauge according to claim 1, characterized in that, The fixed rod (210) has a second threaded portion (212) at one end opposite to the handle portion (220), and the plug gauge connecting post (110) has a third threaded hole (111) that mates with the second threaded portion (212). The fixed rod (210) and the plug gauge connecting post (110) are detachably connected through the second threaded portion (212) and the third threaded hole (111).

8. The efficient and labor-saving thread plug gauge according to claim 7, characterized in that, The third threaded hole (111) is provided in multiple ways, and the multiple third threaded holes (111) are evenly spaced along the circumference of the plug gauge connecting post (110).

9. The efficient and labor-saving thread plug gauge according to claim 1, characterized in that, The fixed rod (210) includes a first section (213) and a second section (214). One end of the first section (213) is connected to the plug gauge connecting post (110), and one end of the second section (214) is connected to the handle part (220). The end of the first section (213) away from the plug gauge connecting post (110) is provided with a receiving cavity (2131) extending in the second direction. The second section (214) is movably connected in the receiving cavity (2131). The second section (214) can extend and retract relative to the first section (213) in the second direction to adjust the size of the force application space (230).

10. The efficient and labor-saving thread plug gauge according to claim 9, characterized in that, The inner wall of the receiving cavity (2131) is provided with a plurality of uniformly spaced limiting through holes (2132) along the second direction. The second section (214) is provided with an elastic limiting post (2141). The elastic limiting post (2141) can move radially along the second section (214) so ​​that the elastic limiting post (2141) can be inserted into or separated from the limiting through hole (2132).

Images