Large-aperture single-dimensional measuring instrument

Abstract

The utility model discloses a large-caliber single-dimensional measuring instrument which comprises a base, a laser emitting device and a laser receiving device, two ends of the base are provided with two mounting seats, and the two ends of the base are respectively provided with a sliding groove for the mounting seats to be connected in a sliding mode. An elastic connecting mechanism for driving the mounting seat to move towards the base is arranged between the mounting seat and the base, and a limiting structure for limiting the movement of the mounting seat after being driven by the elastic connecting mechanism is arranged between the mounting seat and the base. Compared with the prior art, the large-diameter single-dimensional measuring instrument has the following advantages and effects that in the use process of the large-diameter single-dimensional measuring instrument, when the effect of the elastic connecting mechanism is overcome through external force, the limiting structures are separated so that the mounting seat can slide along the sliding groove of the base, and when the effect on the elastic connecting mechanism is cancelled, the limiting structures are separated so that the mounting seat can slide along the sliding groove of the base. The limiting structure relimits the movement of the mounting seat; finally, the positions of the laser emitting device and the laser receiving device are adjusted, and the purpose of conveniently adjusting the measurement range is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments, in particular to a large-caliber single-dimensional measuring instrument. Background Art

[0002] A laser measuring instrument is an instrument that uses laser to measure the diameter of a workpiece or material. It is widely used in industrial production and can achieve automatic feedback control and online communication with a computer. When the laser measuring instrument is in measurement, there is a measurement area between the laser emission module and the laser reception module for measuring the item to be measured. Among them, the large-caliber single-dimensional measuring instrument has the characteristic of a relatively large measurement area range.

[0003] During the use of the existing large-caliber single-dimensional measuring instrument, its measurement range is usually fixed. At this time, there are greater limitations during use and it is impossible to further expand its measurement range according to the item to be measured. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a large-caliber single-dimensional measuring instrument, which has the function of conveniently adjusting the measurement range.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A large-caliber single-dimensional measuring instrument includes a base, a laser emission device arranged at one end of the base, and a laser reception device arranged at the other end of the base. There are two mounting seats for the laser emission device and the laser reception device respectively arranged at both ends of the base. Slide grooves for the mounting seats to be slidably connected are respectively arranged at both ends of the base. An elastic connection mechanism for driving the mounting seat to move towards the direction close to the base is arranged between the mounting seat and the base. A limit structure for restricting the movement of the mounting seat after being driven by the elastic connection mechanism is arranged between the mounting seat and the base. When overcoming the action of the elastic connection mechanism, the limit structure is separated so that the mounting seat can slide along the slide groove of the base.

[0006] The further setting of the utility model is: Accommodating grooves extending along its length direction are arranged at both ends of the lower surface of the base. Waist-shaped holes communicating with the accommodating grooves are arranged at the bottom of the slide groove. The elastic connection mechanism includes a connecting shaft arranged on the lower surface of the mounting seat and passing through the waist-shaped hole, a compression spring sleeved on one end of the connecting shaft passing through the waist-shaped hole, and an anti-drop end cap arranged at the lower end of the connecting shaft and pressing the compression spring.

[0007] The further setting of the utility model is: The limit structure includes two tooth grooves arranged at the bottom of the slide groove and on both sides of the waist-shaped hole, and two racks arranged on the lower surface of the connecting seat and meshing with the tooth grooves during the movement towards the direction close to the base.

[0008] A further arrangement of the utility model is that a driving mechanism is provided between the receiving grooves on both sides of the base and the lower end of the connecting shaft, which drives the base to overcome the elastic force of the elastic connection mechanism so that the tooth grooves and the rack are separated.

[0009] A further arrangement of the utility model is that telescopic holes are provided at both ends of the base. The driving mechanism includes a pull rod passing through the telescopic holes, a first wedge-shaped block telescopically arranged in the receiving groove and connected to the pull rod, a second wedge-shaped block arranged at the lower end of the connecting shaft, and a pull ring arranged at the other end of the pull rod. The first wedge-shaped block is located on the side of the receiving groove close to the middle of the base. During the process of pulling out the pull rod outward, the first wedge-shaped block drives the second wedge-shaped block to move upward against the elastic force of the compression spring, so that the tooth grooves and the rack are separated.

[0010] A further arrangement of the utility model is that clamping grooves communicating with the telescopic holes are provided at both ends of the base. A rubber sleeve for embedding in the clamping grooves is arranged on the pull rod. When the first wedge-shaped block is located at one end of the receiving groove close to the middle of the base, the rubber sleeve is embedded in the clamping grooves and is tightly pressed by friction.

[0011] In summary, the beneficial effects of the utility model are as follows:

[0012] 1. During the use of the large-caliber single-dimensional measuring instrument, when overcoming the action of the elastic connection mechanism by an external force, the limiting structure is separated so that the mounting seat can slide along the sliding groove of the base. When canceling the action on the elastic connection mechanism, the limiting structure restricts the movement of the mounting seat again; finally, the positions of the laser emitting device and the laser receiving device are adjusted to achieve the purpose of conveniently adjusting the measurement range;

[0013] 2. The elastic connection mechanism includes a connecting shaft arranged on the lower surface of the mounting seat and passing through the kidney-shaped hole, a compression spring sleeved on one end of the connecting shaft passing through the kidney-shaped hole, and an anti-disengagement end cover arranged at the lower end of the connecting shaft and pressing the compression spring. Thus, under the action of the compression spring, the mounting seat is driven to move towards the direction close to the base, and there will be no interference during the movement of the mounting seat;

[0014] 3. The limiting structure includes two tooth grooves arranged at the bottom of the sliding groove and on both sides of the kidney-shaped hole, and two racks arranged on the lower surface of the connecting seat and meshing with the tooth grooves during the movement towards the direction close to the base. Thus, the movement of the mounting seat is restricted after being driven by the elastic connection mechanism;

[0015] 4. Through the setting of the driving mechanism, the driving mechanism includes a pull rod passing through the telescopic hole, a first wedge-shaped block telescopically arranged in the receiving groove and connected to the pull rod, a second wedge-shaped block arranged at the lower end of the connecting shaft, and a pull ring arranged at the other end of the pull rod. The first wedge-shaped block is located on one side of the receiving groove close to the middle of the base. During the process of pulling out the pull rod outward, the first wedge-shaped block drives the second wedge-shaped block to move upward against the elastic force of the compression spring, so that the tooth groove and the rack are separated. When continuing to apply force, the mounting seat can be driven to move outward, thereby achieving the purpose of conveniently expanding the measurement range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the structural schematic diagram of the present utility model Figure 1 ;

[0017] Figure 2 is the structural schematic diagram of the present utility model Figure 2 ;

[0018] Figure 3 is Figure 2 the partial enlarged view at position A in

[0019] Figure 4 is the structural schematic diagram of the present utility model Figure 3 .

[0020] Reference numerals: 1, base; 11, sliding groove; 12, receiving groove; 13, kidney-shaped hole; 14, telescopic hole; 15, clamping groove; 2, laser emitting device; 3, laser receiving device; 4, mounting seat; 5, elastic connection mechanism; 51, connecting shaft; 52, compression spring; 53, anti-disengagement end cap; 6, limiting structure; 61, tooth groove; 62, rack; 7, driving mechanism; 71, pull rod; 72, first wedge-shaped block; 73, second wedge-shaped block; 74, pull ring; 75, rubber sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Embodiment: A large-diameter single-dimensional measuring instrument, as Figure 1 shown, includes a base 1, a laser emitting device 2 arranged at one end of the base 1, and a laser receiving device 3 arranged at the other end of the base 1.

[0023] As Figure 1 and Figure 2As shown, two mounting seats 4 for a laser emitting device 2 and a laser receiving device 3 are provided at both ends of a base 1. Slide grooves 11 for slidably connecting the mounting seats 4 are respectively provided at both ends of the base 1. An elastic connection mechanism 5 for driving the mounting seat 4 to move towards the direction close to the base 1 is provided between the mounting seat 4 and the base 1. A limiting structure 6 for restricting the movement of the mounting seat 4 after being driven by the elastic connection mechanism 5 is provided between the mounting seat 4 and the base 1. When overcoming the action of the elastic connection mechanism 5, the limiting structure 6 is separated so that the mounting seat 4 can slide along the slide groove 11 of the base 1.

[0024] As Figures 1 to 3 shown, receiving grooves 12 extending along its length direction are provided at both ends of the lower surface of the base 1. A kidney-shaped hole 13 communicating with the receiving groove 12 is provided at the bottom of the slide groove 11. The elastic connection mechanism 5 includes a connecting shaft 51 provided on the lower surface of the mounting seat 4 and passing through the kidney-shaped hole 13, a compression spring 52 sleeved on one end of the connecting shaft 51 passing through the kidney-shaped hole 13, and an anti-detachment end cap 53 provided at the lower end of the connecting shaft 51 and pressing the compression spring 52.

[0025] As Figure 1 and Figure 4 shown, the limiting structure 6 includes two tooth grooves 61 provided at the bottom of the slide groove 11 and located on both sides of the kidney-shaped hole 13, and two racks 62 provided on the lower surface of the connecting seat and meshing with the tooth grooves 61 during the movement towards the direction close to the base 1.

[0026] As Figures 1 to 3 shown, a driving mechanism 7 for driving the base 1 to overcome the elastic force of the elastic connection mechanism 5 so that the tooth grooves 61 and the racks 62 are separated is provided between the receiving grooves 12 on both sides of the base 1 and the lower end of the connecting shaft 51. Telescopic holes 14 are provided at both ends of the base 1. The driving mechanism 7 includes a pull rod 71 passing through the telescopic hole 14, a first wedge-shaped block 72 telescopically provided in the receiving groove 12 and connected to the pull rod 71, a second wedge-shaped block 73 provided at the lower end of the connecting shaft 51, and a pull ring 74 provided at the other end of the pull rod 71. The first wedge-shaped block 72 is located on one side of the receiving groove 12 close to the middle of the base 1. During the process of pulling out the pull rod 71 outward, the first wedge-shaped block 72 drives the second wedge-shaped block 73 to move upward against the elastic force of the compression spring 52 so that the tooth grooves 61 and the racks 62 are separated. At the same time, clamping grooves 15 communicating with the telescopic holes 14 are provided at both ends of the base 1. A rubber sleeve 75 for being embedded in the clamping groove 15 is provided on the pull rod 71. When the first wedge-shaped block 72 is located at one end of the receiving groove 12 close to the middle of the base 1, the rubber sleeve 75 is embedded in the clamping groove 15 and is tightly pressed by friction.

[0027] Implementation effect: During the use of the large-caliber single-dimensional measuring instrument, when overcoming the action of the elastic connection mechanism 5 by external force, the limiting structure 6 is separated so that the mounting seat 4 can slide along the sliding groove 11 of the base 1. When the action on the elastic connection mechanism 5 is cancelled, the limiting structure 6 restricts the movement of the mounting seat 4 again; ultimately, the positions of the laser emitting device 2 and the laser receiving device 3 are adjusted to achieve the purpose of conveniently adjusting the measurement range. The elastic connection mechanism 5 includes a connecting shaft 51 provided on the lower surface of the mounting seat 4 and passing through the kidney-shaped hole 13, a compression spring 52 sleeved on one end of the connecting shaft 51 passing through the kidney-shaped hole 13, and an anti-detachment end cap 53 provided at the lower end of the connecting shaft 51 and pressing the compression spring 52. Thus, under the action of the compression spring 52, the mounting seat 4 is driven to move towards the direction close to the base 1, and there will be no interference during the movement of the mounting seat 4. The limiting structure 6 includes two tooth grooves 61 provided at the bottom of the sliding groove 11 and on both sides of the kidney-shaped hole 13, and two racks 62 provided on the lower surface of the connecting seat and meshing with the tooth grooves 61 during the movement towards the direction close to the base 1. Thus, after being driven by the elastic connection mechanism 5, the movement of the mounting seat 4 is restricted.

[0028] Through the setting of the driving mechanism 7, the driving mechanism 7 includes a pull rod 71 passing through the telescopic hole 14, a first wedge-shaped block 72 telescopically arranged in the receiving groove 12 and connected to the pull rod 71, a second wedge-shaped block 73 provided at the lower end of the connecting shaft 51, and a pull ring 74 provided at the other end of the pull rod 71. The first wedge-shaped block 72 is located on one side of the receiving groove 12 close to the middle of the base 1. During the process of pulling out the pull rod 71 outward, the first wedge-shaped block 72 drives the second wedge-shaped block 73 to move upward against the elastic force of the compression spring 52, so that the tooth groove 61 and the rack 62 are separated. When continuing to apply force, the mounting seat 4 can be driven to move outward, thus achieving the purpose of conveniently expanding the measurement range.

[0029] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A large-aperture one-dimensional measuring instrument, comprising a base (1), a laser emitting device (2) arranged at one end of the base (1), and a laser receiving device (3) arranged at the other end of the base (1), characterized in that: Two mounting seats (4) for a laser emitting device (2) and a laser receiving device (3) are respectively arranged at two ends of the base (1). Slide grooves (11) for the sliding connection of the mounting seats (4) are respectively arranged at two ends of the base (1). An elastic connection mechanism (5) for driving the mounting seat (4) to move towards the direction close to the base (1) is arranged between the mounting seat (4) and the base (1). A limiting structure (6) for restricting the movement of the mounting seat (4) after being driven by the elastic connection mechanism (5) is arranged between the mounting seat (4) and the base (1). When overcoming the action of the elastic connection mechanism (5), the limiting structure (6) is separated so that the mounting seat (4) can slide along the slide groove (11) of the base (1). Receiving grooves (12) extending along the length direction are arranged at two ends of the lower surface of the base (1). A kidney-shaped hole (13) communicating with the receiving groove (12) is arranged at the bottom of the slide groove (11). The elastic connection mechanism (5) includes a connecting shaft (51) arranged on the lower surface of the mounting seat (4) and passing through the kidney-shaped hole (13), a compression spring (52) sleeved on one end of the connecting shaft (51) passing through the kidney-shaped hole (13), and an anti-disengagement end cap (53) arranged at the lower end of the connecting shaft (51) and pressing against the compression spring (52).

2. The large-aperture one-dimensional measuring instrument according to claim 1, characterized in that: The limiting structure (6) includes two tooth grooves (61) arranged at the bottom of the slide groove (11) and on both sides of the kidney-shaped hole (13), and two racks (62) arranged on the lower surface of the connecting seat and meshing with the tooth grooves (61) during the movement towards the direction close to the base (1).

3. The large-caliber single-dimensional measuring instrument according to claim 2, characterized in that: A driving mechanism (7) for driving the base (1) to overcome the elastic force of the elastic connection mechanism (5) so that the tooth groove (61) and the rack (62) are separated is arranged between the receiving grooves (12) on both sides of the base (1) and the lower end of the connecting shaft (51).

4. The large-aperture single-dimensional measuring instrument according to claim 3, characterized in that: Expansion holes (14) are arranged at two ends of the base (1). The driving mechanism (7) includes a pull rod (71) passing through the expansion hole (14), a first wedge-shaped block (72) telescopically arranged in the receiving groove (12) and connected with the pull rod (71), a second wedge-shaped block (73) arranged at the lower end of the connecting shaft (51), and a pull ring (74) arranged at the other end of the pull rod (71). The first wedge-shaped block (72) is located on one side of the receiving groove (12) close to the middle of the base (1). During the process of pulling out the pull rod (71) outwards, the first wedge-shaped block (72) drives the second wedge-shaped block (73) to move upwards against the elastic force of the compression spring (52) so that the tooth groove (61) and the rack (62) are separated.

5. The large-aperture single-dimensional measuring instrument according to claim 4, characterized in that: Card slots (15) communicating with the expansion holes (14) are arranged at two ends of the base (1). A rubber sleeve (75) for embedding in the card slot (15) is arranged on the pull rod (71). When the first wedge-shaped block (72) is located at one end of the receiving groove (12) close to the middle of the base (1), the rubber sleeve (75) is embedded in the card slot (15) and is tightly pressed by friction.

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