Thread plug gauge with plug head convenient to replace

Abstract

The utility model discloses a thread plug gauge with a plug head convenient to replace, which relates to the technical field of thread plug gauges, and comprises a handle assembly with a handle rod, a plug gauge assembly and a locking assembly, and the plug gauge assembly comprises a rotating block and a thread plug gauge; the rotating block is rotatably connected to the inner side of the rotating groove, the number of the thread plug gauges is four, the four thread plug gauges are circumferentially fixed to the outer side of the rotating block, the outer diameter specifications of the four thread plug gauges are sequentially decreased, and switching of the thread plug gauges of different specifications can be achieved through rotation of the rotating block. According to the utility model, through the arrangement of the plug gauge assembly, one handle assembly corresponds to four groups of go gauges and no-go gauges of different specifications, compared with the traditional plug gauges of only one specification, the application range is wider, and through the convenient switching of the bolt plug gauges of different specifications, the replacement frequency of the plug gauges in the measurement process can be effectively reduced, and the measurement efficiency is improved. The overall measurement operation is more convenient, and the measurement efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thread plug gauges, in particular to a thread plug gauge with convenient plug head replacement. Background Technique

[0002] A thread plug gauge is a tool for measuring the correctness of internal thread dimensions. The existing thread plug gauge includes a rod body, a non-go gauge and a go gauge integrally formed on both sides of the rod body respectively. When using this structure of thread plug gauge for detection, first use the non-go gauge to detect the thread, and then rotate 180 degrees to use the go gauge to detect the thread after detection. The operation is simple and convenient;

[0003] However, this kind of thread plug gauge can only detect one specification of thread hole. During detection, it is also necessary to continuously replace different specifications of thread plug gauges, which is a waste of time. Based on this, a thread plug gauge with convenient plug head replacement is provided. Content of the Utility Model

[0004] The purpose of the utility model is to provide a thread plug gauge with convenient plug head replacement to solve the problems in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A thread plug gauge with convenient plug head replacement, including a handle assembly with a handle rod, rotation grooves are opened at both ends of the handle rod, limiting blocks are symmetrically fixed on the outer side of the handle rod, and limiting sliding grooves penetrating through both ends of the limiting blocks are opened on both sides of the outer wall of the handle rod;

[0006] A plug gauge assembly is arranged inside the rotation groove, and the plug gauge assembly includes a rotation block and a thread plug gauge;

[0007] The rotation block is rotatably connected to the inside of the rotation groove, there are four thread plug gauges, the four thread plug gauges are fixedly arranged on the outer side of the rotation block in a circumferential manner, and the outer diameter specifications of the four thread plug gauges decrease in sequence;

[0008] Two groups of thread plug gauges in two plug gauge assemblies are arranged at both ends of the handle rod and respectively correspond to the go gauge and the non-go gauge. By rotating the rotation block, the switching of different specifications of thread plug gauges can be realized;

[0009] A locking assembly is arranged inside the limiting sliding groove, and the locking assembly is used to lock or unlock the rotation of the rotation block.

[0010] As a further scheme of the utility model: The locking assembly includes an L-shaped push plate, a locking block and a W-shaped elastic sheet;

[0011] A moving groove and a receiving groove are opened on the side surface of the limiting sliding groove. The moving groove is distributed at one end of the receiving groove and penetrates through the handle rod to communicate with the inner cavity of the rotation groove. Positioning lock grooves are opened on both sides of the rotation block;

[0012] The L-shaped push plate is horizontally slidably connected to the inner side of the limit chute and penetrates through both ends of the limit block;

[0013] The locking block is fixed to one side of the L-shaped push plate and is slidably connected to the inner side of the moving groove. The locking block penetrates through both sides of the moving groove and is clamped inside the positioning lock groove to lock the rotating block;

[0014] The W-shaped elastic piece is installed inside the storage groove and is attached to one end of the locking block to provide a thrust force for the locking block towards the rotating block.

[0015] As a further scheme of the present utility model: The number of the positioning lock grooves is multiple and corresponds one-to-one with the number and distribution positions of the thread plug gauges.

[0016] As a further scheme of the present utility model: One end of the locking block towards the rotating block is of an arc surface structure. A connecting column is formed between the thread plug gauge and the rotating block, and the length of the connecting column is greater than the horizontal moving length of the locking block.

[0017] As a further scheme of the present utility model: The outer diameter of the thread plug gauge with the largest diameter is smaller than the inner wall width of the rotating groove, and the sum of the length of the thread plug gauge and the length of the rotating block is smaller than the length of the rotating groove.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] By providing a plug gauge assembly, a handle assembly corresponds to four groups of plug gauges and snap gauges with different specifications. Compared with the traditional plug gauge with only one specification, its application range is wider. And through the convenient switching of plug gauges with different specifications, the replacement frequency of the plug gauge during the measurement process can be effectively reduced, the overall measurement operation is more convenient, and the measurement efficiency can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the vertical section of the handle rod of the present utility model;

[0022] Figure 3 is a schematic structural diagram of the horizontal section of the handle rod of the present utility model;

[0023] Figure 4 is a schematic exploded view of the plug gauge assembly, locking assembly and handle rod of the present utility model.

[0024] In the figure: 1. Handle assembly; 101. Handle rod; 102. Limit block; 103. Rotation groove; 104. Limit sliding groove; 105. Movement groove; 106. Storage groove; 2. Plug gauge assembly; 201. Rotating block; 202. Thread plug gauge; 203. Positioning lock groove; 3. Locking assembly; 301. L-shaped push plate; 302. Locking block; 303. W-shaped elastic piece. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1 to 4 In the embodiment of the present invention, a thread plug gauge with convenient plug head replacement includes a handle assembly 1 having a handle rod 101. Rotation grooves 103 are provided at both ends of the handle rod 101. Limit blocks 102 are symmetrically fixed on the outer side of the handle rod 101. Limit sliding grooves 104 penetrating both ends of the limit blocks 102 are provided on both sides of the outer wall of the handle rod 101.

[0027] A plug gauge assembly 2 is arranged inside the rotation groove 103. The plug gauge assembly 2 includes a rotating block 201 and a thread plug gauge 202.

[0028] The rotating block 201 is rotatably connected to the inside of the rotation groove 103. Four thread plug gauges 202 are provided. The four thread plug gauges 202 are circumferentially fixed on the outer side of the rotating block 201, and the outer diameter specifications of the four thread plug gauges 202 decrease in sequence.

[0029] Two groups of thread plug gauges 202 in the two plug gauge assemblies 2 are respectively arranged at both ends of the handle rod 101 and correspond to the go gauge and the no-go gauge. By rotating the rotating block 201, the switching of different specification thread plug gauges 202 can be realized.

[0030] A locking assembly 3 is arranged inside the limit sliding groove 104. The locking assembly 3 is used to lock or unlock the rotation of the rotating block 201.

[0031] The locking assembly 3 includes an L-shaped push plate 301, a locking block 302, and a W-shaped elastic piece 303.

[0032] Movement grooves 105 and storage grooves 106 are provided on the side surface of the limit sliding groove 104. The movement grooves 105 are distributed at one end of the storage groove 106 and penetrate the handle rod 101 to communicate with the inner cavity of the rotation groove 103. Positioning lock grooves 203 are provided on both sides of the rotating block 201.

[0033] The L-shaped push plate 301 is horizontally slidably connected to the inner side of the limit chute 104 and penetrates through both ends of the limit block 102;

[0034] The locking block 302 is fixed to one side of the L-shaped push plate 301 and is slidably connected to the inner side of the moving groove 105. The locking block 302 penetrates through both sides of the moving groove 105 and is clamped inside the positioning lock groove 203 to lock the rotating block 201;

[0035] The W-shaped elastic piece 303 is installed inside the storage groove 106 and abuts against one end of the locking block 302 to provide a thrust force for the locking block 302 towards the rotating block 201;

[0036] The number of the positioning lock grooves 203 is multiple and corresponds one-to-one to the number and distribution positions of the thread plug gauges 202.

[0037] In this embodiment, it should be noted that: at the position where the side surface of the rotating disk 201 is aligned with each thread plug gauge 202, a specification scale is engraved to facilitate the operator to quickly identify the specification of the thread plug gauge 202. The thread plug gauges 202 on the two sets of plug gauge assemblies 2 respectively represent the no-go gauge and the go gauge, and the specifications correspond one-to-one;

[0038] When in use, when it is necessary to switch the specification of the thread plug gauge 202, only need to pull the L-shaped push plate 301. The L-shaped push plate 301 drives the locking block 302 to move away from the rotating disk 201 and squeezes the W-shaped elastic piece 303 to contract. Finally, the locking block 302 completely moves out of the positioning lock groove 203. At this time, the rotating disk 201 can be rotated. When the bolt plug gauge 202 of the required specification is at the front end of the handle rod 101, the pulling of the L-shaped push plate 301 can be released. At this time, the locking block 302 is snapped into another positioning lock groove 203 under the elastic force of the W-shaped elastic piece 303, so as to fix the position of the bolt plug gauge 202 (it should be noted that: one set of plug gauge assembly 2 is correspondingly provided with two sets of locking assemblies 3. During operation, it is necessary to pull the two L-shaped push plates 301 simultaneously. This structure is used to ensure the stability of daily use);

[0039] Through the cooperation of the above-mentioned multiple parts, one handle assembly 1 can be correspondingly provided with four sets of go gauges and no-go gauges of different specifications. Compared with the traditional plug gauge with only one specification, its application range is wider. And through the convenient switching of the bolt plug gauges 202 of different specifications, the replacement frequency of the plug gauge during the measurement process can be effectively reduced. The overall measurement operation is more convenient, and the measurement efficiency can be effectively improved.

[0040] Please refer to Figures 3 to 4 , one end of the locking block 302 facing the rotating block 201 is of an arc surface structure. A connecting column is formed between the thread plug gauge 202 and the rotating block 201, and the length of the connecting column is greater than the horizontal moving length of the locking block 302;

[0041] The outer diameter of the thread plug gauge 202 with the maximum diameter is smaller than the inner wall width of the rotation groove 103, and the sum of the length of the thread plug gauge 202 and the length of the rotation block 201 is smaller than the length of the rotation groove 103.

[0042] In this embodiment: With this structure, the locking block 302 will not interfere with the rotation and switching of the thread plug gauge 202, and the thread plug gauge 202 can be smoothly received inside the rotation groove 103.

[0043] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A threaded plug gauge with an easily replaceable plug head, comprising a handle assembly (1) having a handle rod (101), characterized in that: Rotation grooves (103) are provided at both ends of the handle bar (101); a limit block (102) is symmetrically fixed on the outer side of the handle bar (101); and limit sliding grooves (104) penetrating through both ends of the limit block (102) are provided on both sides of the outer wall of the handle bar (101); A plug gauge assembly (2) is arranged inside the rotating groove (103), and the plug gauge assembly (2) comprises a rotating block (201) and a thread plug gauge (202); The rotating block (201) is rotatably connected to the inner side of the rotating groove (103), and four thread plug gauges (202) are provided. The four thread plug gauges (202) are circumferentially fixed to the outer side of the rotating block (201), and the outer diameter specifications of the four thread plug gauges (202) decrease in sequence; Two plug gauge assemblies (2) are provided at both ends of the handle bar (101) with two sets of thread plug gauges (202) corresponding to the go gauge and the stop gauge respectively, and thread plug gauges (202) of different specifications can be switched by rotating the rotating block (201); A locking assembly (3) is provided on the inner side of the limiting sliding groove (104), and the locking assembly (3) is used to achieve rotation locking or unlocking of the rotating block (201).

2. A threaded plug gauge with convenient plug replacement according to claim 1, characterized in that: The locking assembly (3) comprises an L-shaped push plate (301), a locking block (302), and a W-shaped spring piece (303); The side of the limiting sliding groove (104) is provided with a moving groove (105) and a receiving groove (106); the moving groove (105) is distributed at one end of the receiving groove (106) and penetrates the handle bar (101) and is connected with the inner cavity of the rotating groove (103); and positioning locking grooves (203) are provided on both sides of the rotating block (201); The L-shaped push plate (301) is horizontally slidably connected to the inner side of the limiting slide groove (104) and passes through both ends of the limiting block (102); The locking block (302) is fixed to one side of the L-shaped push plate (301) and is slidably connected to the inner side of the moving groove (105); the locking block (302) passes through both sides of the moving groove (105) and is clamped to the inner side of the positioning locking groove (203) to achieve locking of the rotating block (201); The W-shaped spring piece (303) is installed on the inner side of the receiving groove (106) and is attached to one end of the locking block (302), so as to provide a thrust for the locking block (302) toward the rotating block (201).

3. A threaded plug gauge with convenient plug replacement according to claim 2, characterized in that: The number of the positioning locking grooves (203) is multiple and corresponds one-to-one with the number and distribution positions of the thread plug gauges (202).

4. A threaded plug gauge with convenient plug replacement according to claim 2, characterized in that: One end of the locking block (302) facing the rotating block (201) is in an arcuate structure, and a connecting column is formed between the thread plug gauge (202) and the rotating block (201), and the length of the connecting column is greater than the horizontal moving length of the locking block (302).

5. A threaded plug gauge with convenient plug replacement according to claim 1, characterized in that: The outer diameter of the thread plug gauge (202) with the largest diameter is smaller than the inner wall width of the rotating groove (103), and the sum of the length of the thread plug gauge (202) and the length of the rotating block (201) is smaller than the length of the rotating groove (103).

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