Diameter measuring equipment

Abstract

The utility model provides diameter measuring equipment which comprises a box body, a soft belt ruler is wound in the box body, a clamping head is installed at one end, located outside the box body, of the soft belt ruler, the clamping head is of an L-shaped structure, a strip-shaped opening is formed in one side face, adjacent to the soft belt ruler, of the clamping head, ear plates are arranged on the two sides of the strip-shaped opening, and the ear plates are connected with the clamping head. The clamping head is connected with a lug plate through a plug connector, one end of the lug plate is fixedly connected with a screw rod, the screw rod is in threaded connection with an inner threaded pipe, a detachable base is installed at the lower end of the inner threaded pipe, threaded holes are formed in the four corners of the upper surface of the base, and supporting studs are in threaded connection with the interiors of the threaded holes; the utility model has the following beneficial effects: the position of one end of the soft tape ruler is limited, the cooperation of two persons is not needed, and the occupation of human resources is reduced.

Description

Technical Field

[0001] This utility model is a diameter measuring device, belonging to the field of engineering surveying. Background Technology

[0002] In subway and railway tunnel engineering, diameter measurement is used to ensure that the tunnel dimensions meet design requirements; in building engineering, it is used to measure the dimensions of columns, beams, and other structures. A measuring tape is a commonly used diameter measurement tool. However, when the diameter of the object being measured is large, the operation is limited by the operator's arm span, requiring two people to work together. One person holds the position of one end of the tape measure while the other walks around the object. This method requires at least two people, consuming significant manpower. Therefore, a diameter measurement device that reduces manpower consumption is needed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a diameter measuring device to solve the problems mentioned in the background technology. This utility model can restrict the position of one end of the soft tape measure without the need for two people to cooperate, thus reducing the occupation of human resources.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a diameter measuring device includes a housing, in which a flexible tape measure is wound. A clamp is installed at one end of the flexible tape measure on the outside of the housing. The clamp has an L-shaped structure. A strip-shaped opening is provided on the side of the clamp adjacent to the flexible tape measure. Ear plates are provided on both sides of the strip-shaped opening. The clamp is connected to the ear plates via a connector. A screw is fixed to one end of the ear plate. An internally threaded tube is threaded onto the screw. A detachable base is installed at the lower end of the internally threaded tube. Threaded holes are provided at the four corners of the upper surface of the base. Support studs are threaded into the threaded holes.

[0005] Furthermore, a vertically arranged positioning rod is installed on the upper surface of the base, and multiple vertically arranged counterweights are provided on the upper surface of the base. A positioning hole is opened in the middle of one side of each counterweight, and the positioning rod passes through the positioning hole.

[0006] Furthermore, the connector includes a plug plate, and each of the two ear plates has a plug groove on the side facing the strip opening. The plug plate is inserted into the channel formed by the two plug grooves and the strip opening. One end of the plug plate is connected and fixed to an end plate, and two magnetic strips that attract the ear plates are installed on one side of the end plate.

[0007] Furthermore, one side of the end plate has two rectangular openings, and the magnet strip is glued into the rectangular openings.

[0008] Furthermore, a handle is installed at the upper end of the screw, and the handle is arranged perpendicular to the screw.

[0009] Furthermore, a threaded sleeve is installed at the middle position of the upper surface of the base, and an external thread is machined on the outer surface of the lower end of the internally threaded tube, with the lower end of the internally threaded tube being threaded into the internally threaded tube.

[0010] Furthermore, a knob head is fixedly connected to the upper end of the support stud, and the knob head and the support stud are integrally formed.

[0011] Furthermore, a winding shaft is rotatably mounted inside the box, one end of which extends to the outside of the box and is fitted with a crank handle, and the end of the soft tape ruler away from the chuck is connected and fixed to the winding shaft.

[0012] The beneficial effects of this utility model are:

[0013] 1. Insert the clamp head between the two ear plates and align the strip opening with the insertion slot. Then, insert the insertion plate into the channel formed by the two insertion slots and the strip opening until the magnetic strip is attracted to one of the ear plates. This completes the assembly of the clamp head and the ear plate, which in turn completes the assembly of the soft tape ruler and the screw.

[0014] 2. Adjust the length of the screw inside the internal threaded tube as needed. At this time, the height of the structure formed by the screw and the internal threaded tube changes, allowing the base to be placed on the ground. Thus, the structure formed by the base, the internal threaded tube, and the screw restricts one end of the soft tape measure. It is not necessary to occupy one person to restrict the position of the soft tape measure, and it is not necessary to cooperate with two people, thus reducing the occupation of human resources.

[0015] 3. Tighten the four support studs on the base so that the lower ends of the four support studs are in contact with the ground, so that the four support studs provide balanced support for the base, making it easy to place the base on uneven ground.

[0016] 4. Stack multiple counterweights on the base and pass the positioning rod through the positioning holes on the counterweights to keep the relative position of the counterweights and the base constant, so that the base is placed stably under the action of the counterweights. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a diameter measuring device according to the present invention;

[0019] Figure 2 This is an enlarged view of point A in a diameter measuring device of this utility model;

[0020] Figure 3 This is an assembly diagram of the clamp, flexible tape measure and housing in a diameter measuring device according to this utility model;

[0021] Figure 4 This is a schematic diagram of the assembly of the ear plate and the screw in a diameter measuring device according to this utility model;

[0022] Figure 5 This is a schematic diagram of the assembly of the positioning rod and the base in a diameter measuring device according to this utility model;

[0023] Figure 6 This is an assembly diagram of the magnet strip, plug-in plate, and end plate in a diameter measuring device according to this utility model;

[0024] In the diagram: 1-box body, 2-soft tape measure, 3-screw, 4-internal threaded tube, 5-support stud, 6-threaded sleeve, 7-base, 8-counterweight, 9-positioning rod, 10-end plate, 11-magnet strip, 12-ear plate, 13-handle, 14-clamp, 15-strip opening, 16-insertion slot, 17-threaded hole, 18-insertion plate. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please see Figure 1 and Figure 3 This utility model provides a technical solution: a diameter measuring device, including a box body 1, a flexible tape measure 2 wound inside the box body 1, a clamp 14 installed at one end of the flexible tape measure 2 on the outside of the box body 1, the clamp 14 having an L-shaped structure, a winding shaft rotatably installed inside the box body 1, one end of the winding shaft extending to the outside of the box body 1 and equipped with a crank handle, the end of the flexible tape measure 2 away from the clamp 14 being connected and fixed to the winding shaft, the winding shaft is rotated by the crank handle, so that the flexible tape measure 2 is wound on the winding shaft, making it easy to hide the flexible tape measure 2 inside the box body 1.

[0027] See Figures 1-4 , Figure 6A slotted opening 15 is provided on the side of the card head 14 adjacent to the soft tape ruler 2. Ear plates 12 are provided on both sides of the slotted opening 15. Insertion slots 16 are provided on the side of each ear plate 12 facing the slotted opening 15. Insertion plates 18 are inserted into the channel formed by the two insertion slots 16 and the slotted opening 15. An end plate 10 is fixedly connected to one end of the insertion plate 18. Two magnetic strips 11 that attract the ear plates 12 are installed on one side of the end plate 10. Two rectangular... The rectangular opening is used to glue the magnet strip 11 into the rectangular opening, which facilitates a stable connection between the magnet strip 11 and the end plate 10. The clamp 14 is then inserted between the two ear plates 12, and the strip opening 15 is aligned with the insertion slot 16. Then, the insertion plate 18 is inserted into the channel formed by the two insertion slots 16 and the strip opening 15 until the magnet strip 11 is attracted to one ear plate 12, thus completing the assembly of the clamp 14 and the ear plate 12, which in turn completes the assembly of the soft tape ruler 2 and the screw 3.

[0028] See Figures 1-6 One end of the ear plate 12 is connected to a screw 3, and an internally threaded tube 4 is threaded onto the screw 3. A handle 13 is installed on the upper end of the screw 3, and the handle 13 is arranged perpendicular to the screw 3. A detachable base 7 is installed on the lower end of the internally threaded tube 4. A threaded sleeve 6 is installed in the middle of the upper surface of the base 7. The lower outer surface of the internally threaded tube 4 is machined with external threads, so that the lower end of the internally threaded tube 4 is threaded into the internally threaded tube 4, which facilitates the disassembly and assembly of the internally threaded tube 4 and the base 7. The length of the screw 3 in the internally threaded tube 4 can be adjusted as needed. At this time, the height of the structure formed by the screw 3 and the internally threaded tube 4 changes, so that the base 7 is placed on the ground. Thus, the structure formed by the base 7, the internally threaded tube 4 and the screw 3 restricts one end of the soft tape ruler 2 without the need for one person to restrict the position of the soft tape ruler 2, and without the need for two people to cooperate, reducing the use of human resources.

[0029] See Figure 1 and Figure 5 The base 7 has threaded holes 17 at each of the four corners on its upper surface. Support studs 5 are internally threaded into the threaded holes 17. A knob head is fixed to the upper end of the support stud 5. The knob head and the support stud 5 are integrally formed. A vertically arranged positioning rod 9 is installed on the upper surface of the base 7. Multiple counterweights 8 are arranged vertically on the upper surface of the base 7. A positioning hole is opened in the middle of one side of the counterweight 8. The positioning rod 9 passes through the positioning hole. By turning the four support studs 5 on the base 7, the lower ends of the four support studs 5 are in contact with the ground. Thus, the four support studs 5 provide balanced support for the base 7, making it easy to place the base 7 on uneven ground. Multiple counterweights 8 are stacked on the base 7, and the positioning rod 9 passes through the positioning holes on the multiple counterweights 8 to keep the relative position of the counterweights 8 and the base 7 unchanged. Under the action of the counterweights 8, the base 7 is placed stably.

[0030] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A caliper device comprising a box (1), characterized in that: The soft tape (2) is wound in the box body (1), one end of the soft tape (2) is provided with a clamping head (14) outside the box body (1), the clamping head (14) is provided with a strip-shaped opening (15) on the side adjacent to the soft tape (2), the both sides of the strip-shaped opening (15) are provided with an ear plate (12), the clamping head (14) is connected with the ear plate (12) through a plug-in part, one end of the ear plate (12) is fixedly connected with a screw rod (3), the screw rod (3) is threadedly connected with an internally threaded pipe (4), the internally threaded pipe (4) is detachably provided with a base (7) at the lower end, the upper surface of the base (7) is provided with a threaded hole (17) at each of the four corners, and the threaded hole (17) is threadedly connected with a supporting stud (5).

2. A caliper device according to claim 1, characterized in that: The base (7) is provided with a vertical positioning rod (9) on the upper surface, and a plurality of counterweight blocks (8) are arranged on the upper surface of the base (7) in an up-down manner, the positioning rod (9) penetrates the positioning hole.

3. A caliper device according to claim 1, characterized in that: The plug-in part comprises a plug-in plate, the plug-in plate (18) is inserted into the channel formed by the two plug-in grooves (16) and the strip-shaped opening (15), one end of the plug-in plate (18) is fixedly connected with an end plate (10), and the end plate (10) is provided with two magnet strips (11) which are adsorbed to the ear plates (12) on one side.

4. A calliper device according to claim 3, wherein: Two rectangular openings are formed on one side of the end plate (10), and the magnet strips (11) are pasted in the rectangular openings by glue.

5. The device of claim 1 wherein: A handle (13) is mounted on the upper end of the screw rod (3), and the handle (13) is arranged vertically to the screw rod (3).

6. The caliper device of claim 1, wherein: A threaded sleeve (6) is mounted on the base (7) at the middle position of the upper surface, the lower end of the internally threaded pipe (4) is provided with an external thread, and the lower end of the internally threaded pipe (4) is threadedly connected in the internally threaded pipe (4).

7. The device of claim 1 wherein: A knob head is fixedly connected to the upper end of the supporting stud (5), and the knob head and the supporting stud (5) are formed in an integral structure.

8. The caliper device of claim 1, wherein: A winding shaft is rotatably mounted in the box body (1), the winding shaft extends to the outside of the box body (1) at one end and is provided with a crank handle, and the end of the soft tape (2) away from the clamping head (14) is fixedly connected with the winding shaft.

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