CN209992093U

CN209992093U - Improved generation root system tension measuring device's connecting jig

Info

Publication number: CN209992093U
Application number: CN201921134274.4U
Authority: CN
Inventors: 庄家尧
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-01-24
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses an improved generation root system tension force measuring device's coupling fixture, including the pincers seat, it has a pair of tong arm, two to articulate on the pincers seat the chuck is installed separately to the front end of tong arm, two form the keeping silent that is used for the centre gripping root system between the chuck, two be equipped with a voussoir between the rear end of tong arm, be equipped with on the pincers seat and be used for driving the voussoir removes, makes keep silent and tend closed power device, two be equipped with the messenger between the tong arm keep silent and tend open elastic component, still be equipped with on the pincers seat and draw the ear. The utility model discloses clamping-force between the chuck is realized through voussoir and power device, has solved the problem that clamping-force is drawn the restriction of tension, and power device itself can be very convenient realization clamping-force's regulation, prevents to destroy the integrity of root system, after solving above-mentioned two problems, can guarantee going on smoothly, accurately of plant pulling force survey.

Description

Improved generation root system tension measuring device's connecting jig

Technical Field

The utility model relates to a root system tension measuring equipment, concretely relates to joint fixture of improved generation root system tension measuring device.

Background

The existing plant tension measuring device only measures plants with small anchoring force, the existing measuring device is usually of a type of a triangular bracket structure, the measuring direction is set to be that the whole plant is fixed from top to bottom and the root tension is measured after the whole plant is pulled upwards, and the root tension is not measured well for some large-scale root plants; even in the existing device for measuring the in-situ deceleration root system tension, the measured root system needs to be clamped by connecting equipment such as a clamp chuck and the like for measurement, the connecting clamp in the existing device is mostly directly fixed by the clamp, the clamp in the rigid connection mode can easily destroy the integrity of the root system when being fixed, so that the tensile capacity of the clamp is weakened, the tension of the whole root system can not be accurately measured, and the clamp is directly broken from a fixed point to influence the measurement result when the tension of the root system is not really limited.

Patent document 1, patent document 2 discloses a flexible connection anchor clamps, its biggest advantage is to draw and to be connected the installation through the spring part that sets up between the front end of cover and the fixed plate, the device is drawing backward at the flexible connector when using like this, the spring part is corresponding to be stretched and to drawing the cover production tension, thereby make the anchor clamps head flexible clamping root system of crank front end, it is not just directly to fix the root system on anchor clamps before the tension measurement, consequently the completion degree of protection root system that can be better and obtain the result of more accurate tension measurement. But discovery when using, the clamping-force and the tension of this anchor clamps are relevant, and clamping-force also can corresponding increase when the tension increases, still exists when not really reaching root system pulling force limit yet, and the centre gripping position of root system is impaired because of the pressurized excessively to be broken at the pinch point. In addition, there may be a case where the root system falls off due to insufficient clamping force when the tightening force is continuously increased. Both of the above conditions reduce the accuracy of the measurement.

Patent document 1: CN 108489815A.

Patent document 2: CN 109489880A.

SUMMERY OF THE UTILITY MODEL

In order to guarantee going on smoothly, improving its measurement accuracy as far as possible simultaneously of plant pulling force survey, the utility model provides an improved generation root system pulling force survey device's coupling fixture.

The utility model adopts the technical scheme as follows:

the utility model provides an improved generation root system tension force measuring device's connecting clamp, includes the pincers seat, it has a pair of tong arm, two to articulate on the pincers seat the chuck is installed separately to the front end of tong arm, two form the keeping silent that is used for the centre gripping root system between the chuck, two be equipped with a voussoir between the rear end of tong arm, be equipped with on the pincers seat and be used for driving the voussoir removes, makes keep silent and tend closed power device, two be equipped with the messenger between the tong arm keep silent and tend open elastic component, still be equipped with on the pincers seat and draw the ear.

The utility model has the advantages that: the utility model discloses clamping-force between the chuck is realized through voussoir and power device, has solved the problem that clamping-force is drawn the restriction of tension, and power device itself can be very convenient realization clamping-force's regulation, prevents to destroy the integrity of root system, after solving above-mentioned two problems, can guarantee going on smoothly, accurately of plant pulling force survey.

Preferably: the wedge block is a trapezoidal wedge block, is provided with two guide inclined planes and is respectively contacted with the rear ends of the clamp arms.

Preferably: the angle of the two guide inclined planes is larger than the self-locking angle of the two guide inclined planes.

Preferably: the power device is a cylinder.

Preferably: and an arc surface is arranged at the contact position of the rear end of the clamp arm and the wedge block.

Preferably: the inner side of the forceps arm is provided with a groove between the front end and the hinge point, the elastic piece is a cylindrical spring, and two ends of the elastic piece are compressed and supported in the groove.

Preferably: the clamping head is hinged to the front end of the clamp arm.

Preferably: the clamp is provided with a rubber sleeve, and the inner side of the rubber sleeve is provided with a clamping groove consistent with the root system direction.

Preferably: the clamp seat is provided with a clamp cover, and the clamp arm and the wedge block are arranged in a gap formed by the clamp seat and the clamp cover.

Preferably: the clamp cover and the clamp seat are fixed through bolts, wherein copper sleeves are arranged outside the two bolts, and the clamp arms are hinged on the copper sleeves.

Drawings

Fig. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a second schematic diagram of an embodiment of the present invention.

Fig. 3 is an exploded schematic view of an embodiment of the present invention.

Fig. 4 is a second exploded view of an embodiment of the present invention.

Fig. 5 is a schematic view illustrating the installation of the clamp arm, the clamp head and the rubber sleeve according to the embodiment of the present invention.

Fig. 6 is a schematic view of a clamp arm according to an embodiment of the present invention.

Fig. 7 is a schematic view of a rubber sleeve in an embodiment of the present invention.

The clamp comprises a clamp seat 1, a clamp arm 2, a clamping head 3, a clamp mouth 4, a wedge block 5, a power device 6, an elastic piece 7, a pull lug 8, an arc surface 9, a groove 10, a rubber sleeve 11, a clamping groove 12, a clamp cover 13, a bolt 14 and a copper sleeve 15.

Detailed Description

The present invention will be further explained with reference to the following embodiments and accompanying drawings.

In the embodiment, as shown in fig. 1 ~ 7, an improved connecting clamp of a root system tension measuring device includes a clamp base 1, a pair of clamp arms 2 is hinged to the clamp base 1, a clamp head 3 is respectively installed at the front ends of the two clamp arms 2, a clamp mouth 4 for clamping a root system is formed between the two clamp heads 3, a wedge block 5 is arranged between the rear ends of the two clamp arms 2, a power device 6 for driving the wedge block 5 to move and enabling the clamp mouth 4 to tend to close is arranged on the clamp base 1, an elastic part 7 for enabling the clamp mouth 4 to tend to open is arranged between the two clamp arms 2, and a pull lug 8 is further arranged on the clamp base 1.

In the embodiment, as shown in fig. 3 and 4: the wedge 5 is a trapezoidal wedge, has two guiding inclined planes, and is respectively contacted with the rear end of the clamp arm 2. This embodiment structure, two tong arm 2 are symmetrical to be set up, and voussoir 5 can drive the action of tong arm 2 simultaneously, and the synchronism is good, is convenient for press from both sides the tight root system that awaits measuring simultaneously.

In the embodiment, as shown in fig. 3 and 4: the angle of the two guide inclined planes is larger than the self-locking angle of the two guide inclined planes. The clamp arm 2 of this embodiment should avoid being rigid clamp arm 2, that is, when the clamping force is too large, the root system to be measured can act on clamp arm 2 in the direction, so that wedge 5 can retreat. Taking steel as an example, the requirement of no self-locking can be met when the single-side inclination angle of the guide inclined plane on the forceps arm 2 is larger than 15 degrees.

In the embodiment, as shown in fig. 3 and 4: the power device 6 is a cylinder. The compressibility of the cylinder is particularly suitable for serving as the power device 6 of the embodiment, and the situation that the jaw 4 crushes the root system can be effectively avoided by setting the air pressure threshold value, so that the accuracy of measurement is ensured.

In the embodiment, as shown in fig. 5 and 6: and an arc surface 9 is arranged at the contact position of the rear end of the clamp arm 2 and the wedge block 5. The arc surface 9 of this embodiment is used as the frictional contact surface of the clamp arm 2 and the wedge 5, and can avoid the situation that the wedge 5 is stuck, thereby ensuring the smooth action of the clamp arm 2.

In the embodiment, as shown in fig. 4 and 6: a groove 10 is formed between the front end and the hinge point of the inner side of the clamp arm 2, the elastic piece 7 is a cylindrical spring, and two ends of the elastic piece are compressed and supported in the groove 10. The elastic member 7 of the present embodiment is a cylindrical spring, and is a simpler structure, and the groove 10 serves as a limiting structure to ensure the reliability of the installation of the elastic member 7. In addition, the elastic part 7 can also adopt an arc spring, so that the acting force on the clamp arm 2 is more uniform, the component force in other directions is smaller, and the stability of the whole device can be improved.

In the example, as shown in fig. 5: the clamping head 3 is hinged at the front end of the clamp arm 2. The chuck 3 of this embodiment can guarantee certain mobility, consequently can automatically regulated when pressing from both sides tight root system, avoids appearing the too big condition of certain department atress of root system.

In the embodiment, as shown in fig. 5 and 7: the chuck 3 is provided with a rubber sleeve 11, and the inner side of the rubber sleeve 11 is provided with a clamping groove 12 consistent with the root system direction. The gum cover 11 of this embodiment has certain elasticity, can play the guard action to the root system, and the gum cover 11 adopts the mode installation of pegging graft with chuck 3, possesses the dismouting, changes convenient advantage, has good adaptability to the root system of different specifications.

In the embodiment, as shown in fig. 1 ~ 4, a clamp cover 13 is arranged on the clamp base 1, and the clamp arm 2 and the wedge 5 are both arranged in a gap formed by the clamp base 1 and the clamp cover 13.

In the example, as shown in fig. 4: the clamp cover 13 and the clamp base 1 are fixed through bolts 14, copper sleeves 15 are arranged outside the two bolts 14, and the clamp arm 2 is hinged to the copper sleeves 15. The copper bush 15 of this embodiment has the characteristic of self-lubricating, has the function of bearing, consequently can guarantee the smooth rotation of tong arm 2, avoids appearing the circumstances such as puckery, card and die.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides an improved generation root system tension survey device's coupling fixture which characterized in that: including pincers seat (1), it has a pair of tong arm (2), two to articulate on pincers seat (1) chuck (3) are installed separately to the front end of tong arm (2), two form between chuck (3) and be used for keeping silent (4) of centre gripping root system, two be equipped with a voussoir (5) between the rear end of tong arm (2), be equipped with on pincers seat (1) and be used for driving voussoir (5) remove, make keep silent (4) trend closed power device (6), two be equipped with the messenger between tong arm (2) keep silent (4) trend open elastic component (7), still be equipped with on pincers seat (1) and draw ear (8).

2. The improved tie-down cleat for a root system tensile testing device of claim 1, wherein: the wedge block (5) is a trapezoidal wedge block, is provided with two guide inclined planes and is respectively contacted with the rear ends of the clamp arms (2).

3. The improved tie down clamp of claim 2, further comprising: the angle of the two guide inclined planes is larger than the self-locking angle of the two guide inclined planes.

4. The improved tie-down cleat for a root system tensile testing device of claim 3, wherein: the power device (6) is a cylinder.

5. The improved tie down clamp of claim 2, further comprising: and an arc surface (9) is arranged at the contact position of the rear end of the clamp arm (2) and the wedge block (5).

6. The improved tie-down cleat for a root system tensile testing device of claim 1, wherein: a groove (10) is formed between the front end and a hinge point of the inner side of the clamp arm (2), the elastic piece (7) is a cylindrical spring, and two ends of the elastic piece are compressed and supported in the groove (10).

7. The improved tie-down cleat for a root system tensile testing device of claim 1, wherein: the clamping head (3) is hinged to the front end of the clamp arm (2).

8. The improved tie down cleat for a root system tensile testing device of claim 7, wherein: a rubber sleeve (11) is installed on the chuck (3), and a clamping groove (12) consistent with the root system direction is formed in the inner side of the rubber sleeve (11).

9. The improved tie-down cleat for a root system tensile testing device of claim 1, wherein: the clamp is characterized in that a clamp cover (13) is arranged on the clamp seat (1), and the clamp arm (2) and the wedge block (5) are arranged in a gap formed by the clamp seat (1) and the clamp cover (13).

10. The improved tie down cleat for a rhizomatic tensile testing device of claim 9, wherein: the clamp cover (13) and the clamp base (1) are fixed through bolts (14), copper sleeves (15) are arranged outside the two bolts (14), and the clamp arm (2) is hinged to the copper sleeves (15).