Vernier caliper

Abstract

The utility model discloses a vernier caliper, which is applied to the field of measuring tools, and is characterized in that a pull rod drives a slide rod to move by moving a pull block, so that a clamping head moves and is separated from a clamping hole, then a measuring claw is taken out and replaced, and a new measuring claw is arranged in a fixed block; a sliding rod drives a clamping head to be clamped with a clamping hole under the action of a first spring to fix the clamping head, the purpose of replacing a measuring claw can be achieved, the use cost is reduced, the practicability and the applicability are improved, a shifting block is moved to enable a shifting rod to drive the sliding rod to move, a fixing rod and a fixing hole are separated from clamping, and the measuring accuracy is improved. And after use is completed, the baffle is covered, a sliding rod drives a fixing rod and a fixing hole to be separated from clamping connection under the action of a second spring, and the mode that the baffle is fixed is adopted, so that the purpose of protecting the display screen can be achieved, cleanliness of the display screen is guaranteed, and the safety of the display screen is improved.

Description

Technical Field

[0001] The utility model relates to the field of measuring tools, in particular to a vernier caliper. Background Art

[0002] At present, a Chinese utility model with the announcement number CN214407217U discloses an electronic digital display vernier caliper, including a first main scale and a second main scale, a first outer scale is fixedly installed at the bottom of the first main scale, a second inner scale is fixedly installed at the top of the first main scale, a sliding member is slidably sleeved on the outer surface of the first main scale, a display screen is provided on the outer surface of the sliding member, a first inner scale is fixedly installed on the top of the left side of the sliding member, a second outer scale is fixedly installed on the bottom of the sliding member, a second installation groove is provided on the inner wall of the sliding member, a connecting rod is interspersed on the outer surface of the sliding member, one end of the connecting rod extends to the inside of the second installation groove, a spring is sleeved on the outer surface of the connecting rod, and a fixing plate is fixedly installed on one end of the connecting rod. The utility model provides a series of structures to make the device easy to use and store.

[0003] The existing vernier caliper cannot replace the measuring claws. The measuring claws will wear out after long-term use, resulting in reduced accuracy during measurement. The measuring claws are generally integrated with the vernier caliper and cannot be replaced. If the measuring claws need to be replaced, the entire vernier caliper must be replaced directly, which increases the cost of use and reduces practicality. It also cannot protect the display screen. When the vernier caliper is not in use, the display screen is exposed to the outside, and dust in the air will adhere to the surface of the display screen, affecting the display effect during use. It needs to be wiped frequently, which increases the maintenance amount. In addition, the exposed display screen will be damaged by external collisions, and its practicality is low. In order to solve the above-mentioned problems, we propose a vernier caliper. Utility Model Content

[0004] The utility model aims to provide a vernier caliper, which has the advantages of being able to replace measuring claws and protect the display screen.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: a vernier caliper, comprising a ruler rod, a display is installed on the surface of the ruler rod, a button is installed on the surface of the display, the top and bottom of the ruler rod and the display are bolted with fixed blocks, the inner walls of the top and bottom fixed blocks are respectively slidably sleeved with inner circle measuring claws and outer circle measuring claws, the inner wall of the fixed block is slidably connected with a sliding rod, the surface of the sliding rod is bolted with a clamping joint, the surfaces of the inner circle measuring claw and the outer circle measuring claw are both provided with clamping holes, and the clamping joint is clamped with the clamping hole, the surface of the sliding rod is bolted with a pull rod, the surface of the pull rod is sleeved with a first spring, the surface of the display is bolted with a fixed frame, the inner wall of the fixed frame is provided with a sliding mechanism, a baffle is bolted between the sliding mechanisms, the inner wall of the fixed frame is slidably connected with a sliding rod, the surface of the sliding rod is bolted with a fixed rod, the bottom of the baffle is provided with a fixing hole, and the fixing hole is clamped with one end of the fixed rod, a second spring is provided between one end of the sliding rod, and the surface of the sliding rod is bolted with a toggle rod.

[0006] The above technical scheme is adopted, by moving the pulling block, the pulling block moves the pulling rod, the pulling rod moves to drive the sliding rod to move, the sliding rod moves to drive the card joint to move and disengage from the card hole, then the measuring claw is taken out and replaced, and the new measuring claw is installed in the fixing block, and the sliding rod drives the card joint to engage with the card hole under the action of the first spring, and fixes it in a way that can achieve the purpose of replacing the measuring claw, reduces the cost of use, and improves practicality and applicability. When in use, when the toggle block is moved, the toggle rod moves, the toggle rod movement drives the sliding rod to move, the sliding rod movement drives the fixing rod to move, the fixing rod moves to make the fixing rod disengage from the fixing hole, the baffle plate drops under the action of the third spring and pops up for use. After use, the baffle plate is covered, and the sliding rod drives the fixing rod to disengage from the fixing hole under the action of the second spring, and the baffle plate is fixed. The way of protecting it can achieve the purpose of protecting the display screen, ensures the cleanliness of the display screen, and improves the safety of the display screen.

[0007] The utility model is further configured as follows: the sliding mechanism comprises a sliding groove, the sliding groove is arranged on the inner wall of the fixed frame, a sliding block is slidably connected to the inner wall of the sliding groove, and the sliding block is bolted to the surface of the baffle.

[0008] By adopting the above technical solution and arranging a sliding mechanism, the baffle is prevented from deflecting and stability is ensured.

[0009] The utility model is further configured as follows: a guide rod is bolted between the inner walls of the slide groove, and the guide rod is slidably sleeved with the inner wall of the slider, a third spring is arranged between the slider and the inner wall of the slide groove, and the third spring is sleeved on the surface of the guide rod.

[0010] By adopting the above technical solution and arranging the guide rod and the third spring, the baffle can be opened conveniently and used conveniently.

[0011] The utility model is further configured as follows: one end of the toggle rod is bolted with a toggle block.

[0012] By adopting the above technical solution and arranging the toggle block, it is convenient to move the toggle rod.

[0013] The utility model is further configured as follows: the surface of the ruler rod is bolted with a limiting block.

[0014] By adopting the above technical solution, the display can be prevented from falling off by setting a limit block.

[0015] The utility model is further configured as follows: one end of the pull rod is bolted with a pull block.

[0016] By adopting the above technical solution and arranging the pull block, it is convenient to move the pull rod.

[0017] The utility model is further configured as follows: the inner wall of the display is threadedly connected with a fixing screw.

[0018] By adopting the above technical solution, the display can be fixed conveniently by setting the screw rod.

[0019] The utility model is further configured as follows: one end of the ruler rod is bolted with a depth measuring rod.

[0020] By adopting the technical solution, a depth measuring rod is provided to measure the depth of the hole, thereby improving practicality.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. The utility model moves the pull block, the pull block moves the pull rod, the pull rod moves to drive the slide rod to move, the slide rod moves to drive the clamping joint to move and disengage from the clamping hole, then the measuring claw is taken out and replaced, and the new measuring claw is installed in the fixed block. The slide rod drives the clamping joint to clamp with the clamping hole under the action of the first spring, and fixes it in a way that can achieve the purpose of replacing the measuring claw, reduce the use cost, and improve practicality and applicability;

[0023] 2. When the utility model is used, the toggle block is moved to move the toggle rod, the movement of the toggle rod drives the sliding rod to move, the movement of the sliding rod drives the fixing rod to move, the movement of the fixing rod causes the fixing rod to be disengaged from the fixing hole, the baffle plate is lowered under the action of the third spring, the baffle plate pops open, and the utility model is used. After use, the baffle plate is covered, and the sliding rod drives the fixing rod to be disengaged from the fixing hole under the action of the second spring, and the baffle plate is fixed to protect it. The purpose of protecting the display screen can be achieved, the cleanliness of the display screen is ensured, and the safety of the display screen is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0025] Figure 2 It is a top view cross-sectional view of the structure of the utility model;

[0026] Figure 3 This utility model Figure 2 A magnified view of the structure at center;

[0027] Figure 4 This utility model Figure 2 A magnified view of the structure at B in the middle;

[0028] Figure 5 This utility model Figure 2 Enlarged view of the structure at point C in the middle.

[0029] Figure numerals: 1. ruler; 2. display; 3. button; 4. fixed block; 5. inner circle measuring claw; 6. outer circle measuring claw; 7. sliding rod; 8. clamping joint; 9. clamping hole; 10. pull rod; 11. first spring; 12. fixed frame; 13. baffle; 14. sliding rod; 15. fixed rod; 16. fixed hole; 17. second spring; 18. toggle rod; 19. slide groove; 20. slider; 21. guide rod; 22. third spring; 23. toggle block; 24. limit block; 25. pull block; 26. fixed screw; 27. depth measuring rod; 28. sliding mechanism. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings. Embodiment 1:

[0031] refer to Figure 1 , Figure 2 and Figure 3A vernier caliper comprises a ruler bar 1, a display 2 is mounted on the surface of the ruler bar 1, a button 3 is mounted on the surface of the display 2, a fixing block 4 is bolted to the top and bottom of the ruler bar 1 and the display 2, an inner circle measuring claw 5 and an outer circle measuring claw 6 are slidably sleeved on the inner walls of the top and bottom fixing blocks 4, a sliding rod 7 is slidably connected to the inner wall of the fixing block 4, a clamping joint 8 is bolted to the surface of the sliding rod 7, a clamping hole 9 is opened on the surface of the inner circle measuring claw 5 and the outer circle measuring claw 6, and the clamping joint 8 is clamped with the clamping hole 9, and the surface of the sliding rod 7 is bolted to the inner circle measuring claw 5 and the outer circle measuring claw 6. There is a pull rod 10, and a first spring 11 is sleeved on the surface of the pull rod 10. By moving the pull block 25, the pull block 25 moves the pull rod 10, and the movement of the pull rod 10 drives the sliding rod 7 to move. The movement of the sliding rod 7 drives the clamping joint 8 to move and disengage from the clamping hole 9, and then the measuring claw is taken out and replaced, and the new measuring claw is installed in the fixed block 4. The sliding rod 7 drives the clamping joint 8 to clamp with the clamping hole 9 under the action of the first spring 11. The way of fixing it can achieve the purpose of replacing the measuring claw, reduce the cost of use, and improve practicality and applicability.

[0032] refer to Figure 1 and Figure 2 The surface of the ruler rod 1 is bolted with a limit block 24, and the limit block 24 is provided to prevent the display 2 from falling off.

[0033] refer to Figure 1 and Figure 3 A pull block 25 is bolted to one end of the pull rod 10 , and the pull block 25 is provided to facilitate the movement of the pull rod 10 .

[0034] refer to Figure 2 The inner wall of the display 2 is threadedly connected with a fixing screw 26. By setting the screw, the display 2 is conveniently fixed.

[0035] refer to Figure 1 and Figure 2 One end of the ruler rod 1 is bolted with a depth measuring rod 27. By setting the depth measuring rod 27, the depth of the hole can be measured, thereby improving practicality. Embodiment 2:

[0036] refer to Figure 1 , Figure 2 and Figure 4The surface of the display 2 is bolted with a fixed frame 12, the inner wall of the fixed frame 12 is provided with a sliding mechanism 28, a baffle 13 is bolted between the sliding mechanisms 28, the inner wall of the fixed frame 12 is slidably connected with a sliding rod 14, the surface of the sliding rod 14 is bolted with a fixed rod 15, a fixing hole 16 is provided at the bottom of the baffle 13, and the fixing hole 16 is clamped with one end of the fixed rod 15, a second spring 17 is provided between one end of the sliding rod 14, and a toggle rod 18 is bolted to the surface of the sliding rod 14. When in use, the toggle block 23 is moved, and the toggle rod 18 moves. The movement of 18 drives the sliding rod 14 to move, and the movement of the sliding rod 14 drives the fixing rod 15 to move, and the movement of the fixing rod 15 causes the fixing rod 15 to be disengaged from the fixing hole 16, and the baffle 13 is popped open by the action of the third spring 22 for use. After use, the baffle 13 is covered, and the sliding rod 14 drives the fixing rod 15 to be disengaged from the fixing hole 16 under the action of the second spring 17, and the baffle 13 is fixed to protect it, which can achieve the purpose of protecting the display screen, ensure the cleanliness of the display screen, and improve the safety of the display screen.

[0037] refer to Figure 5 The sliding mechanism 28 includes a slide groove 19, which is opened on the inner wall of the fixed frame 12. The inner wall of the slide groove 19 is slidably connected with a slider 20, and the slider 20 is bolted to the surface of the baffle 13. By setting the sliding mechanism 28, the baffle 13 is prevented from deflecting and stability is ensured.

[0038] refer to Figure 5 A guide rod 21 is bolted between the inner walls of the slide groove 19, and the guide rod 21 is slidably sleeved with the inner wall of the slider 20. A third spring 22 is arranged between the slider 20 and the inner wall of the slide groove 19, and the third spring 22 is sleeved on the surface of the guide rod 21. By arranging the guide rod 21 and the third spring 22, it is convenient to open the baffle 13 and use it conveniently.

[0039] refer to Figure 4 One end of the toggle rod 18 is bolted with a toggle block 23. By providing the toggle block 23, it is convenient to move the toggle rod 18.

[0040] The use process is briefly described as follows: the pull block 25 is moved, the pull block 25 moves the pull rod 10 to move, the pull rod 10 moves to drive the sliding rod 7 to move, the sliding rod 7 moves to drive the clamping joint 8 to move and disengage from the clamping hole 9, and then the measuring claw is taken out and replaced, and the new measuring claw is installed in the fixing block 4, and the sliding rod 7 drives the clamping joint 8 to clamp with the clamping hole 9 under the action of the first spring 11, and fixes it, so as to achieve the purpose of replacing the measuring claw; when using, the toggle rod 18 moves when the toggle block 23 is moved, and the toggle rod 18 moves to drive the sliding rod 14 to move, and the sliding rod 14 moves to drive the fixing rod 15 to move, and the fixing rod 15 moves to make the fixing rod 15 disengage from the fixing hole 16, and the baffle 13 drops under the action of the third spring 22. The baffle 13 pops open for use. After use, the baffle 13 is covered, and the sliding rod 14 drives the fixing rod 15 to disengage from the fixing hole 16 under the action of the second spring 17, and the baffle 13 is fixed to protect it, so as to achieve the purpose of protecting the display screen.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A vernier caliper, comprising a ruler bar (1), characterized in that: A display (2) is mounted on the surface of the ruler bar (1), a button (3) is mounted on the surface of the display (2), a fixing block (4) is bolted to the top and bottom of the ruler bar (1) and the display (2), an inner circle measuring claw (5) and an outer circle measuring claw (6) are slidably sleeved on the inner walls of the fixing blocks (4) at the top and bottom, respectively, a sliding rod (7) is slidably connected to the inner wall of the fixing block (4), a clamping joint (8) is bolted to the surface of the sliding rod (7), a clamping hole (9) is provided on the surface of the inner circle measuring claw (5) and the outer circle measuring claw (6), and the clamping joint (8) is clamped to the clamping hole (9), a pull rod (10) is bolted to the surface of the sliding rod (7), and the pull rod The surface of the display (10) is sleeved with a first spring (11), the surface of the display (2) is bolted with a fixed frame (12), the inner wall of the fixed frame (12) is provided with a sliding mechanism (28), a baffle (13) is bolted between the sliding mechanisms (28), the inner wall of the fixed frame (12) is slidably connected with a sliding rod (14), the surface of the sliding rod (14) is bolted with a fixing rod (15), the bottom of the baffle (13) is provided with a fixing hole (16), and the fixing hole (16) is clamped with one end of the fixing rod (15), a second spring (17) is provided between one end of the sliding rod (14), and a toggle rod (18) is bolted to the surface of the sliding rod (14).

2. A vernier caliper according to claim 1, characterized in that: The sliding mechanism (28) comprises a sliding groove (19), wherein the sliding groove (19) is formed on the inner wall of the fixed frame (12), a sliding block (20) is slidably connected to the inner wall of the sliding groove (19), and the sliding block (20) is bolted to the surface of the baffle (13).

3. A vernier caliper according to claim 2, characterized in that: A guide rod (21) is bolted between the inner walls of the slide groove (19), and the guide rod (21) is slidably sleeved with the inner wall of the slider (20). A third spring (22) is provided between the slider (20) and the inner wall of the slide groove (19), and the third spring (22) is sleeved on the surface of the guide rod (21).

4. A vernier caliper according to claim 1, characterized in that: One end of the toggle rod (18) is bolted to a toggle block (23).

5. A vernier caliper according to claim 1, characterized in that: A limit block (24) is bolted to the surface of the ruler rod (1).

6. A vernier caliper according to claim 1, characterized in that: A pull block (25) is bolted to one end of the pull rod (10).

7. A vernier caliper according to claim 1, characterized in that: The inner wall of the display (2) is threadedly connected with a fixing screw (26).

8. A vernier caliper according to claim 1, characterized in that: One end of the ruler rod (1) is bolted with a depth measuring rod (27).

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