A vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators.

Abstract

This utility model discloses a vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators, relating to the field of vernier caliper technology. It aims to solve the problem that existing vernier calipers cannot adapt to confined spaces and can accommodate various copper pipe wall thickness measurements. The technical solution includes a scale body and a vernier. A notch is provided at the end of the scale body near the fixed measuring head to accommodate copper pipe wall thickness measurements in confined spaces. By creating the notch at the end of the scale body near the fixed measuring head, the aluminum fins or other interference structures around the copper-aluminum composite radiator can be effectively avoided, allowing the fixed and sliding measuring heads to penetrate into confined spaces and precisely conform to the inner and outer walls of the copper pipe, successfully completing the wall thickness measurement. This solves the problem of traditional vernier calipers being unable to measure due to spatial interference. Fixed claws are provided on the opposing surfaces of the fixed and sliding measuring heads, and a sliding claw is slidably connected to the sliding measuring head. A locking component is also provided on the sliding measuring head to limit the movement of the sliding claw.

Description

Technical Field

[0001] This utility model relates to the field of vernier caliper technology, specifically a vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators. Background Technology

[0002] Vernier calipers are a commonly used precision measuring tool, widely used in fields such as machinery manufacturing and engineering testing, and can measure the length, thickness, inner diameter, outer diameter, and other dimensions of objects.

[0003] In the production and testing of copper-aluminum composite radiators, the wall thickness of the copper pipe is a key quality indicator, as its dimensional accuracy directly affects the radiator's heat dissipation performance, compressive strength, and service life.

[0004] Traditional vernier calipers have significant limitations when measuring the wall thickness of copper pipes in copper-aluminum composite radiators: Copper-aluminum composite radiators have a complex structure, with the copper pipes installed inside the aluminum radiators. The end of a traditional vernier caliper is a completely flat structure, which easily interferes with the surrounding structure when inserted into the narrow aluminum radiator pipe, making it impossible for the measuring head to accurately contact the copper pipe's measuring surface, leading to difficult or even impossible measurements. Furthermore, the structures of aluminum radiator pipes vary between different specifications of copper-aluminum composite radiators. Existing irregularly shaped vernier calipers have fixed measuring head sizes, which prevent the measuring head from reaching the copper pipe when facing large aluminum radiators, thus failing to meet diverse measurement needs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model discloses a vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators. The technical solution adopted is that it includes a ruler body and a vernier, the vernier being slidably connected to the ruler body, and the ruler body and the vernier being respectively provided with a fixed measuring head and a sliding measuring head in corresponding positions.

[0007] The ruler body has a notch at one end near the fixed measuring head, which is suitable for measuring the wall thickness of copper pipes in confined spaces. By creating a notch at one end of the ruler body near the fixed measuring head, the aluminum fins or other interference structures around the copper-aluminum composite radiator can be effectively avoided, allowing the fixed measuring head and sliding measuring head to penetrate into confined spaces and accurately fit the inner and outer walls of the copper pipe, thus successfully completing the wall thickness measurement. This solves the problem that traditional vernier calipers cannot measure due to spatial interference.

[0008] The fixed measuring head and the sliding measuring head are provided with fixed claw heads on their opposing surfaces. The sliding measuring head is slidably connected with a sliding claw head. The sliding measuring head is also provided with a locking member to limit the sliding claw head.

[0009] As a preferred technical solution of this utility model, the sliding measuring head is provided with a through hole, the sliding claw head is slidably connected in the through hole, the sliding measuring head is also provided with a threaded hole, the threaded hole is connected to the through hole and is set perpendicularly, the locking member is engaged in the threaded hole, and the sliding claw head can slide along the through hole on the sliding measuring head to realize flexible adjustment of the distance between the measuring claw heads, which can adapt to the measurement needs of copper tubes with different wall thicknesses and different internal structural features.

[0010] As a preferred embodiment of this utility model, the locking member is a T-shaped member, including a head and a neck, and the neck is provided with a threaded section that engages with the threaded hole.

[0011] As a preferred technical solution of this utility model, the sliding claw head is also provided with a slot, and there are multiple sets of slots. The locking member and the opposite end of the sliding claw head are provided with a spherical block that matches the slot. The cooperation of multiple sets of slots and spherical blocks can ensure that the sliding claw head is stably fixed after adjustment, avoid displacement during measurement, and take into account both versatility and measurement stability.

[0012] As a preferred embodiment of this utility model, the sliding claw head is further provided with scale lines, and the scale lines are provided in multiple sets, corresponding to the position of the slot.

[0013] As a preferred embodiment of this utility model, a reinforcing tube is provided on the side of the sliding measuring head away from the fixed measuring head, and the reinforcing tube is fitted onto the sliding claw head.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by opening a notch at one end of the ruler body near the fixed measuring head, this utility model can effectively avoid the aluminum fins or other interference structures around the copper-aluminum composite radiator, allowing the fixed measuring head and the sliding measuring head to penetrate into the narrow space and accurately fit the inner and outer walls of the copper pipe, thus successfully completing the wall thickness measurement and solving the problem that traditional vernier calipers cannot measure due to spatial interference.

[0015] The sliding claw head can slide along the through hole on the sliding measuring head, realizing flexible adjustment of the distance between the measuring claw heads. It can adapt to the measurement needs of copper tubes with different wall thicknesses and different internal structural features. The cooperation of multiple sets of slots and spherical blocks can ensure that the sliding claw head is stably fixed after adjustment, avoiding displacement during the measurement process, and taking into account both versatility and measurement stability.

[0016] The scale lines on the sliding jaw head correspond one-to-one with the slots, allowing operators to quickly and accurately adjust the position of the sliding jaw head and reduce adjustment errors. The T-shaped locking mechanism is easy to operate; simply rotating the head is sufficient to lock and unlock the sliding jaw head, improving measurement efficiency. The reinforcing tube enhances the structural strength of the connection between the sliding jaw head and the sliding measuring head, preventing jaw head deformation due to long-term use and further ensuring measurement accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial exploded view of the present invention;

[0019] Figure 3 This is a partial sectional view of the present invention;

[0020] Figure 4 This is a schematic diagram of the sliding claw head and locking component of this utility model;

[0021] Figure 5 This is a diagram showing the first usage state of this utility model;

[0022] Figure 6 This is a diagram showing the second usage state of this utility model.

[0023] In the diagram: 1. Ruler body; 2. Vernier; 3. Fixed measuring head; 4. Sliding measuring head; 5. Fixed jaw head; 6. Sliding jaw head; 7. Notch; 8. Locking element; 9. Reinforcing tube;

[0024] 41. Through hole; 42. Threaded hole; 61. Slot; 62. Scale line; 81. Threaded section; 82. Spherical block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0026] like Figures 1 to 6As shown, this utility model discloses a vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators. The technical solution adopted includes a scale body 1 and a vernier 2. The vernier 2 is slidably connected to the scale body 1 through a sliding groove and can move back and forth along the length of the scale body 1 to realize the adjustment of the measurement size. A fixed measuring head 3 is provided at the left end of the scale body 1, and a sliding measuring head 4 is provided at the left end of the vernier 2. The fixed measuring head 3 and the sliding measuring head 4 are positioned correspondingly.

[0027] To accommodate the limited measuring space of the copper-aluminum composite radiator, a notch 7 is provided on the left end of the ruler 1 near the fixed measuring head 3. This notch effectively avoids interference from the surrounding aluminum fins, allowing the fixed measuring head 3 to smoothly extend into the gap between the copper pipe and the fins and fit against the outer wall of the copper pipe.

[0028] A fixed claw head 5 is welded to the side of the fixed measuring head 3 facing the sliding measuring head 4. The end of the fixed claw head 5 has an arc-shaped structure to ensure a good fit during measurement. A horizontal through hole 41 is opened on the side of the sliding measuring head 4 facing the fixed measuring head 3. A sliding claw head 6 is slidably connected in the through hole 41. The end of the sliding claw head 6 also has an arc-shaped structure and cooperates with the fixed claw head 5 to clamp the copper tube. A threaded hole 42 perpendicular to the through hole 41 is opened on the sliding measuring head 4. The threaded hole 42 communicates with the through hole 41. A locking element 8 is engaged in the threaded hole 42 to limit and fix the sliding claw head 6.

[0029] The locking member 8 has a T-shaped structure, including a circular head and a cylindrical neck. The outer circumferential surface of the neck is machined with a threaded section 81 that matches the threaded hole 42. The locking member 8 can be moved by rotating the head. A spherical block 82 is provided on the opposite end of the locking member 8 and the sliding claw head 6. The sliding claw head 6 has multiple sets of slots 61 that match the spherical block 82 evenly opened along its length. The spherical block 82 can be embedded in the slot 61. The sliding claw head 6 is stably fixed by the wedge-shaped surface engagement, preventing it from sliding along the through hole 41.

[0030] To facilitate precise adjustment of the position of the sliding claw head 6, multiple sets of scale lines 62 are engraved on the top of the sliding claw head 6. The spacing of the scale lines 62 is consistent with the spacing of the slots 61, and each set of scale lines 62 is aligned with the corresponding slot 61. The spacing between adjacent scale lines 62 is 5mm. Operators can quickly determine the adjustment distance of the sliding claw head 6 through the scale lines 62, thereby improving the adjustment accuracy and efficiency.

[0031] A reinforcing tube 9 is welded to the right side of the sliding measuring head 4 away from the fixed measuring head 3. The reinforcing tube 9 is a hollow steel tube, and its inner diameter is adapted to the outer diameter of the sliding claw head 6. The right end of the sliding claw head 6 passes through the reinforcing tube 9 and extends to the outside. The reinforcing tube 9 can enhance the structural strength of the connection between the sliding claw head 6 and the sliding measuring head 4, avoid bending and deformation of the sliding claw head 6 due to long-term sliding, and ensure the stability of measurement accuracy.

[0032] The working principle of this utility model:

[0033] According to the wall thickness of the copper tube to be measured, rotate the head of the locking part 8 to disengage the ball block 82 from the slot 61 and release the lock on the sliding claw head 6; push the sliding claw head 6 along the through hole 41 and adjust it to a suitable position with reference to the scale line 62 so that the distance between the fixed claw head 5 and the sliding claw head 6 is slightly greater than the wall thickness of the copper tube.

[0034] Align the notch 7 at the left end of the ruler 1 with the gap between the copper pipe and the aluminum fins of the radiator, and slowly insert it so that the fixing claw 5 fits against the outer wall of the copper pipe and the sliding claw 6 fits against the inner wall of the copper pipe.

[0035] Slide the vernier 2, causing the sliding measuring head 4 to drive the sliding claw head 6 to further fit against the inner wall of the copper tube, ensuring that the measuring head is in close contact with the surface of the copper tube; finally, read the scale value of the ruler 1 and the vernier 2, and subtract the scale value on the scale line 62 to get the wall thickness of the copper tube.

[0036] The circuits and mechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They are common knowledge.

[0037] Components not described in detail in this article are existing technologies.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators, comprising a scale body (1) and a vernier (2), wherein the vernier (2) is slidably connected to the scale body (1), and the scale body (1) and the vernier (2) are respectively provided with a fixed measuring head (3) and a sliding measuring head (4) in corresponding positions. Its features are: The ruler (1) has a notch (7) at one end near the fixed measuring head (3) to accommodate the measurement of the wall thickness of copper tubes in narrow spaces; The fixed measuring head (3) and the sliding measuring head (4) are provided with a fixed claw head (5) on their opposing surfaces. The sliding measuring head (4) is slidably connected with a sliding claw head (6). The sliding measuring head (4) is also provided with a locking member (8) that limits the sliding claw head (6).

2. A vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators according to claim 1, characterized in that: The sliding measuring head (4) has a through hole (41), the sliding claw head (6) is slidably connected in the through hole (41), the sliding measuring head (4) also has a threaded hole (42), the threaded hole (42) is connected to the through hole (41) and is set vertically, and the locking member (8) is engaged in the threaded hole (42).

3. A vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators according to claim 2, characterized in that: The locking member (8) is a T-shaped member, including a head and a neck, and the neck is provided with a threaded section (81) that engages with the threaded hole (42).

4. A vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators according to claim 2 or 3, characterized in that: The sliding claw head (6) is also provided with a slot (61), and the slot (61) is provided in multiple sets. The locking member (8) and the opposite end of the sliding claw head (6) are provided with a spherical block (82) that is adapted to the slot (61).

5. A vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators according to claim 4, characterized in that: The sliding claw (6) is also provided with scale lines (62), and there are multiple sets of scale lines (62), which correspond to the position of the slot (61).

6. A vernier caliper for measuring the wall thickness of copper pipes in copper-aluminum composite radiators according to claim 1, characterized in that: The sliding measuring head (4) is provided with a reinforcing tube (9) on the side away from the fixed measuring head (3), and the reinforcing tube (9) is fitted onto the sliding claw head (6).

Images