A new type of needle thickness gauge

Abstract

The utility model provides a novel needle type thickness gauge belongs to measuring equipment technical field. A novel needle type thickness gauge includes inner tube, outer tube, thimble and handle, the utility model discloses through the coaxial sleeve of inner tube in the outer tube, the upper end of inner tube extends to the outside of outer tube, and the lower end of inner tube is provided with several thimbles along its axial direction, simultaneously, the both sides symmetry of the upper end of inner tube is provided with two handles, so that the operator can two hands respectively act on two handles and push and press inner tube, so that the stress of inner tube can be more uniform, avoid the problem that inner tube appears the inclination because of uneven stress, guarantee the stability of measurement result, and also make the measurement of instrument complete through two hands, compared with the prior art single -hand operation mode, the work burden of single hand is reduced, and also be applicable to the use demand of the operator of less strength, use more convenient, it is favorable to the popularization and use of instrument.

Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, specifically to a novel needle thickness gauge. Background Technology

[0002] For synthetic running tracks and artificial turf, to ensure their quality, the thickness of the track or turf is usually measured to ensure it meets design requirements. Currently, the common method for measuring the thickness of synthetic running tracks and artificial turf is manual, using a needle-type thickness gauge. The needle is inserted into the track or turf, and the depth of insertion is observed to determine the thickness.

[0003] Currently, the needle thickness gauges used for measuring the thickness of plastic running tracks and artificial turf on the market are usually three-needle thickness gauges. For example, a new type of three-needle thickness gauge disclosed in patent CN215676796U is equipped with an outer tube, a top head, needle holes, scale, an inner tube, and a limiting mechanism. The top head is installed at the front end of the outer tube, and multiple needle holes are opened on the top head. The needles pass through the needle holes. A reading groove is opened at the upper end of the outer tube, and a scale is engraved on the right side of the reading groove. The inner tube is slidably installed on the rear side of the inner tube, and a limiting mechanism is fixed at the right end of the outer tube. At the same time, multiple needles are fixed horizontally and longitudinally at the front end of the inner tube, one needle corresponding to one needle hole. This allows the needles to extend or retract from the needle holes when the inner tube is pushed relative to the outer tube. In addition, a handle is installed at the rear end of the inner tube through a threaded connection. The upper end of the inner tube is equipped with a scale. In use, the top of the outer tube is pressed against the surface of the plastic track or artificial turf to be measured. The operator presses down the handle with one hand to push the pin out of the needle hole and insert it into the plastic track or artificial turf. At the same time, the inner tube moves relative to the outer tube. After insertion, the changes in the scale on the inner and outer tubes are observed to read the insertion depth of the pin, thereby determining the thickness of the plastic track or artificial turf. Although the above-mentioned needle thickness gauge can meet the measurement requirements, the existing handle is a ball head installed at the top of the inner tube. When pressing down the pin with the handle, the ball head can only be held with one hand, which has the problem of uneven force on the inner tube. It is easy for the inner tube and the outer tube to tilt relative to the plastic track or artificial turf to be measured, thus affecting the measurement accuracy. In addition, pressing down the pin with one hand is more tiring for the hand, and the one-handed pressing mode is inconvenient for users with less strength. Summary of the Invention

[0004] To address the aforementioned problems in existing technologies, this paper aims to provide a novel needle-type thickness gauge with handles on both sides of the inner tube, allowing operators to press down the pin with both hands. This not only reduces the burden on the hand when pressing down with one hand, making it easier for operators with less strength to use, but also ensures that the force is more evenly distributed when the pin is pressed down, reducing the risk of tilting and resulting in larger measurement errors, thus guaranteeing the accuracy of the measurement.

[0005] The specific technical solution is as follows: A novel needle-type thickness gauge includes an outer tube, an inner tube, and a pin. The inner tube is coaxially sleeved inside the outer tube and moves telescopically along the axial direction of the outer tube. The upper end of the inner tube extends to the outside of the outer tube. Several pins are arranged along the axial direction of the inner tube at one end of the outer tube. Scales are arranged on the inner tube along its axial direction. The gauge also includes handles, which are symmetrically arranged on both sides of the inner tube. Both handles are located at the end of the inner tube extending to the outside of the outer tube.

[0006] The aforementioned novel needle thickness gauge has a level bubble set on the end face of the top of the inner tube.

[0007] The aforementioned novel needle thickness gauge further includes a locking assembly, which is a locking screw. A locking hole communicating with the center hole is provided on the outer tube along its radial direction. One end of the locking assembly is threaded into the locking hole and extends into the center hole of the outer tube.

[0008] In the aforementioned novel needle thickness gauge, a limiting plane is provided on the outer side wall of the inner tube along its axial direction, and a guide plane that fits with the limiting plane is provided on the inner side wall of the outer tube along its axial direction.

[0009] In the aforementioned novel needle thickness gauge, the scale is set on the limiting plane.

[0010] In the aforementioned novel needle thickness gauge, one end of the locking screw extends into the central hole of the outer tube and abuts against the limiting plane.

[0011] The aforementioned novel needle thickness gauge features a folding handle, which includes a connecting seat, a hinge shaft, and an actuating rod. One end of the connecting seat is fixedly welded to the outer wall of the inner tube, and the other end of the connecting seat is fitted with a hinge shaft. One end of the actuating rod is hinged to the hinge shaft.

[0012] In the aforementioned novel needle thickness gauge, each connecting seat has a hinge groove at one end of its hinge shaft. The end of the actuating rod connected to the hinge shaft extends into the hinge groove, and the hinge shaft is horizontally placed in the hinge groove and hinged to the end of the actuating rod.

[0013] In the aforementioned novel needle thickness gauge, each connecting seat is provided with an extended abutment block located in the hinge groove. The abutment block is located on the side of the connecting seat near the ejector pin. When the handle is unfolded by rotating the actuating rod around the hinge axis toward the ejector pin, one side of the actuating rod abuts against the abutment block.

[0014] The aforementioned novel needle thickness gauge further includes an anti-rotation component. Two sets of anti-rotation components are provided, each set mounted on a connecting seat and located on both sides of a hinge groove. A through-hole is provided at one end of the actuating rod extending into the hinge groove. Each anti-rotation component includes a limiting head, a spring, and a plug. Telescopic holes communicating with the hinge groove are provided on both sides of the connecting seat, and each telescopic hole has a constricted end communicating with the hinge groove. The limiting head is slidably disposed within the telescopic hole, with one end extending into the hinge groove. A plug is threadedly connected to the other end of each telescopic hole. The spring is disposed within the telescopic hole, with both ends abutting against the limiting head and the plug, respectively.

[0015] The positive effects of the above technical solution are: The aforementioned novel needle thickness gauge features two handles symmetrically arranged on both sides of one end of the inner tube. This allows the operator to apply force to both handles with both hands, resulting in more even force distribution on the inner tube and reducing the risk of needle tilting due to uneven force. This ensures the accuracy of the measurement results. Furthermore, it allows the operator to press down on the inner tube with both hands simultaneously, reducing the pressure on one hand and making it more comfortable to use. The two-handed operation mode also makes it easier for operators with less strength to operate, making it more convenient to use. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an embodiment of a novel needle thickness gauge according to the present invention; Figure 2 This is a cross-sectional view of the handle of a novel needle thickness gauge according to this utility model when it is unfolded. Figure 3 This is a cross-sectional view of the handle of a novel needle thickness gauge according to the present invention after it has been unfolded. Figure 4 This is a cross-sectional view of the handle of a novel needle thickness gauge according to this utility model after folding. Figure 5 This is a cross-sectional view of the anti-rotation component of a novel needle thickness gauge of this utility model installed on the connecting seat.

[0017] In the attached diagram: 1. Outer tube; 2. Inner tube; 21. Limiting plane; 211. Scale; 3. Ejector pin; 4. Handle; 41. Connecting seat; 42. Hinge shaft; 43. Actuating rod; 411. Hinge groove; 412. Abutment block; 413. Telescopic hole; 431. Insertion hole; 5. Spirit bubble; 6. Locking assembly; 7. Anti-rotation assembly; 71. Limiting head; 72. Spring; 73. Plug. Detailed Implementation

[0018] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 5 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.

[0019] Figure 1 This is a structural diagram of an embodiment of a novel needle-type thickness gauge according to this utility model. Figure 1 As shown, the novel needle thickness gauge provided in this embodiment includes: an outer tube 1, an inner tube 2, a pin 3, and a handle 4. The inner tube 2 is coaxially sleeved inside the outer tube 1 and moves axially along its surface, ensuring that the inner tube 2 can subsequently push the pin 3 into the object to be measured. Simultaneously, the upper end of the inner tube 2 extends outside the outer tube 1, facilitating manual pushing of the inner tube 2 downwards by the operator, thereby inserting the pin 3 into the object to be measured. Furthermore, several pins 3 are arranged axially at one end of the inner tube 2 located within the outer tube 1, allowing the pins 3 to extend beyond the outer tube 1 when the inner tube 2 moves relative to the outer tube 1, thus enabling the pins 3 to be inserted into the object to be measured, meeting the measurement requirements. Additionally, the inner tube 2 has a scale 211 arranged axially. When the inner tube 2 moves relative to the outer tube 1, the scale 211 changes synchronously with respect to the outer tube 1. The change in scale 211 reflects the extension length of the pin 3, thereby obtaining the thickness of the object to be measured, meeting the thickness measurement requirements. It is worth noting that since the specific structure and operating principle of the outer tube 1, inner tube 2 and ejector pin 3 of the existing three-needle thickness gauges on the market have been disclosed, the specific connection structure and working principle of the outer tube 1, inner tube 2 and ejector pin 3 will not be described in detail here.

[0020] Specifically, handles 4 are symmetrically arranged on both sides of the inner tube 2, and both handles 4 are located on the end of the inner tube 2 extending to the outer tube 1. The handles 4 on both sides of the inner tube 2 ensure that the force is evenly distributed when the inner tube 2 is pressed down, preventing the inner tube 2 from tilting due to uneven force. In use, the operator holds the two handles 4 with both hands and presses down, ensuring that the inner tube 2 is evenly stressed when pressed down, and ensuring that the probe 3 is inserted perpendicularly to the surface of the object to be measured, thus improving the accuracy of the measurement results.

[0021] More specifically, a spirit level 5 is provided on the top end face of the inner tube 2. The spirit level 5 allows the operator to easily determine in real time whether the inner tube 2 is in a vertical position, thus facilitating the insertion of the inner tube 2 perpendicularly into the object to be measured, making it more convenient to use. Preferably, an embedding hole is provided on the top end face of the inner tube 2, and the bottom of the spirit level 5 is embedded in the embedding hole. In addition, adhesive is provided in the embedding hole, further ensuring that the spirit level 5 is stably and reliably installed in the embedding hole, resulting in a more reasonable structural design.

[0022] More specifically, a locking component 6 is also provided on the outer wall of the outer tube 1, and the locking component 6 is preferably a locking screw. At this time, a locking hole communicating with its central hole is formed radially on the outer tube 1. One end of the locking component 6 is threaded into the locking hole and extends into the central hole of the outer tube 1. This allows the operator to first tighten the locking screw, using the end of the locking screw to press against the inner tube 2, temporarily confining the inner tube 2 within the outer tube 1. Then, the operator can pull out the pin 3 and directly move the entire unit to eye level for reading, making numerical reading more convenient and avoiding the need for the operator to bend over or squat to read the value. This design is more reasonable. It is worth noting that an anti-slip cap is provided on the end of the locking screw located outside the outer tube 1. Preferably, the anti-slip cap and the locking screw are an integral structure, resulting in better overall integrity and higher structural strength. Furthermore, the locking screws are made of metal, and the anti-slip caps are made of plastic, and when the locking screws are made of metal and the anti-slip caps are made of plastic, the locking screws and anti-slip caps are injection molded as a single piece, making processing more convenient.

[0023] More specifically, a limiting plane 21 is provided on the outer side wall of the inner tube 2 along its axial direction, and a guide plane that fits with the limiting plane 21 is provided on the inner side wall of the outer tube 1 along its axial direction. By fitting the limiting plane 21 and the guide plane together, the circumferential rotation of the inner tube 2 relative to the outer tube 1 is restricted, thereby improving the stability of the inner tube 2 when it is installed and moved in the outer tube 1.

[0024] More specifically, the scale 211 is set on the limiting plane 21, so that the scale 211 can be set on a relatively flat plane, which facilitates the processing of the scale 211 and also facilitates subsequent numerical reading.

[0025] More specifically, one end of the locking screw extending into the center hole of the outer tube 1 abuts against the limiting plane 21. That is, the limiting plane 21 provides a flatter abutting surface for the locking screw, which better adapts to the abutting requirements of the locking screw with a flat end and provides a larger abutting area, thereby making the locking effect of the locking assembly 6 better.

[0026] Figure 2 This is a cross-sectional view of the handle of a novel needle thickness gauge according to this utility model when it is unfolded. Figure 3 This is a cross-sectional view of the handle of a novel needle thickness gauge according to the present invention after it has been unfolded. Figure 4 This is a cross-sectional view of the handle 4 of a novel needle-type thickness gauge according to this utility model after folding. Figures 1 to 4 As shown, each handle 4 is a folding structure. Each handle 4 includes a connecting seat 41, a hinge shaft 42, and an actuating rod 43. One end of the connecting seat 41 is fixedly welded to the outer wall of the inner tube 2, and the other end of the connecting seat 41 is equipped with the hinge shaft 42. One end of the actuating rod 43 is hinged to the hinge shaft 42, so that the handle 4 can be folded by rotating the actuating rod 43 around the hinge shaft 42, which is conducive to the storage of the handle 4. That is, when not measuring, the overall space occupied can be reduced by folding the handle 4, which is conducive to the storage of the instrument.

[0027] More specifically, each connecting seat 41 has a hinge groove 411 at one end where the hinge shaft 42 is provided. The end of the actuating rod 43 connected to the hinge shaft 42 extends into the hinge groove 411. The hinge shaft 42 is placed horizontally in the hinge groove 411 and hinged to the end of the actuating rod 43, so that both sides of the actuating rod 43 are supported by the connecting seat 41, thereby maintaining the stability of the actuating rod 43 when folding and unfolding.

[0028] More specifically, an extended abutment block 412 is provided on each connecting seat 41 and within the hinge groove 411. The abutment block 412 is located on the side of the connecting seat 41 near the ejector pin 3. Preferably, the abutment block 412 and the connecting seat 41 are integrally formed, making the structure of the abutment block 412 more stable and reliable. When the actuating rod 43 rotates around the hinge axis 42 toward the ejector pin 3 to unfold the handle 4, one side of the actuating rod 43 abuts against the abutment block 412. The abutment block 412 restricts the continued rotation of the actuating rod 43, thereby allowing the unfolded actuating rod 43 to transmit the force to the inner tube 2 through the connecting seat 41, ensuring the normal use of the instrument.

[0029] Figure 5 This is a cross-sectional view of the anti-rotation component of a novel needle thickness gauge of this utility model installed on the connecting seat. Figure 1 and Figure 5As shown, the connecting seat 41 is also equipped with an anti-rotation component 7. There are two sets of anti-rotation components 7, located on both sides of the hinge groove 411. The two sets of anti-rotation components 7 correspond to the folded and unfolded states of the handle 4, respectively. At this time, a through-hole 431 is provided on one end of the actuating rod 43 that extends into the hinge groove 411, allowing both ends of the through-hole 431 to engage with the two sets of anti-rotation components 7. Furthermore, each anti-rotation component 7 includes a limiting head 71, a spring 72, and a plug 73. Both sides of the connecting seat 41 are provided with telescopic holes 413 communicating with the hinge groove 411. Each telescopic hole 413 has a constricted end connecting to the hinge groove 411. The limiting head 71 is slidably disposed within the telescopic hole 413, with one end extending into the hinge groove 411. The other end of each telescopic hole 413 is threadedly connected to a plug 73. The spring 72 is disposed within the telescopic hole 413, with both ends abutting against the limiting head 71 and the plug 73 respectively. The spring 72 serves as the limiting head. 71 provides a preload extending into the hinge slot 411, so that when the actuating rod 43 rotates, if the insertion hole 431 moves to the limiting head 71, the limiting head 71 will automatically insert into the insertion hole 431 under the action of the spring 72, thereby temporarily limiting the actuating rod 43 and maintaining the stability of the handle 4 in the use and storage states. When changing the state of the actuating rod 43, only an external force needs to be applied to the actuating rod 43 in the opposite direction, and the limiting head 71 will be squeezed by the actuating rod 43, causing the limiting head 71 to disengage from the insertion hole 431. This makes it more convenient to use and the structural design is more reasonable.

[0030] The novel needle thickness gauge provided in this embodiment includes an inner tube 2, an outer tube 1, a pin 3, and a handle 4. The inner tube 2 is coaxially sleeved inside the outer tube 1, with the upper end of the inner tube 2 extending outside the outer tube 1. Several pins 3 are arranged along the axial direction at the lower end of the inner tube 2. At the same time, two handles 4 are symmetrically arranged on both sides of the upper end of the inner tube 2, allowing the operator to apply pressure to the inner tube 2 with both hands. This makes the force on the inner tube 2 more even, avoiding the problem of tilting due to uneven force, ensuring the stability of the measurement results. Furthermore, the measurement of the instrument can be completed with both hands, which reduces the workload of one hand compared to the existing one-handed operation method. It is also suitable for the needs of operators with less strength, making it more convenient to use and facilitating the promotion and use of the instrument.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel needle-type thickness gauge, comprising an outer tube, an inner tube, and ejector pins, wherein the inner tube is coaxially sleeved within the outer tube and extends and retracts along the axial direction of the outer tube, the upper end of the inner tube extends beyond the outer tube, a plurality of ejector pins are arranged along the axial direction of one end of the inner tube located within the outer tube, and graduations are arranged along the axial direction of the inner tube, characterized in that... It also includes: handles, which are symmetrically arranged on both sides of the inner tube, and both handles are arranged on the end of the inner tube extending to the outside of the outer tube.

2. The novel needle thickness gauge according to claim 1, characterized in that, A spirit level is provided on the end face of the top of the inner tube.

3. The novel needle thickness gauge according to claim 1, characterized in that, It also includes a locking assembly, which is a locking screw. The outer tube has a locking hole that communicates with its central hole along its radial direction. One end of the locking assembly is threaded into the locking hole and extends into the central hole of the outer tube.

4. The novel needle thickness gauge according to claim 3, characterized in that, A limiting plane is provided on the outer side wall of the inner tube along its axial direction, and a guide plane that fits with the limiting plane is provided on the inner side wall of the outer tube along its axial direction.

5. The novel needle thickness gauge according to claim 4, characterized in that, The scale is set on the limiting plane.

6. The novel needle thickness gauge according to claim 4, characterized in that, One end of the locking screw, extending into the central hole of the outer tube, abuts against the limiting plane.

7. The novel needle thickness gauge according to claim 1, characterized in that, Each of the handles is a folding structure, and each handle includes a connecting seat, a hinge shaft, and an actuating rod. One end of the connecting seat is fixedly welded to the outer wall of the inner tube, and the other end of the connecting seat is equipped with the hinge shaft. One end of the actuating rod is hinged to the hinge shaft.

8. The novel needle thickness gauge according to claim 7, characterized in that, Each of the connecting seats has a hinge groove at one end of the hinge shaft. The end of the actuating rod connected to the hinge shaft extends into the hinge groove. The hinge shaft is placed horizontally in the hinge groove and hinged to the end of the actuating rod.

9. The novel needle thickness gauge according to claim 8, characterized in that, Each of the connecting seats is provided with an extended abutment block located in the hinge groove. The abutment block is located on the side of the connecting seat near the ejector pin. When the actuating rod rotates about the hinge axis toward the ejector pin to unfold the handle, one side of the actuating rod abuts against the abutment block.

10. The novel needle thickness gauge according to claim 8, characterized in that, It also includes anti-rotation components, of which two sets are provided. Both sets of anti-rotation components are provided on the connecting seat and located on both sides of the hinge groove. The end of the actuating rod that extends into the hinge groove has a through insertion hole. Each anti-rotation component includes a limiting head, a spring, and a plug. Both sides of the connecting seat have telescopic holes that communicate with the hinge groove. The end of each telescopic hole that communicates with the hinge groove has a constricted structure. The limiting head is slidably disposed in the telescopic hole and extends into the hinge groove at one end. The other end of each telescopic hole is threadedly connected to a plug. The spring is disposed in the telescopic hole and its two ends abut against the limiting head and the plug, respectively.

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