CN212965160U

CN212965160U - Soil resistivity tester for fire engineering

Info

Publication number: CN212965160U
Application number: CN202021636531.7U
Authority: CN
Inventors: 邱小彬; 邓启材; 赵立松; 张帆; 高妮
Original assignee: Sunn Enterprise Management Consulting Chengdu Co ltd
Current assignee: Sunn Enterprise Management Consulting Chengdu Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-04-13
Anticipated expiration: 2030-08-07

Abstract

The application relates to a soil resistivity tester for fire engineering, which comprises a test host, a lead, a ground rod and a rod taking device. The rod taking device comprises an upright post, an air inlet cylinder and a connecting part for connecting the ground rod. The upright post is provided with a connecting part which is used for being connected with the ground rod in a sliding way along the vertical direction; a driving component for driving the connecting part to ascend and descend is arranged in the upright post and comprises a jacking air bag and a first push plate; the air inlet cylinder is connected to the outer wall of the upright post, and an air inlet part for driving the jacking air bag to expand is arranged in the air inlet cylinder and comprises the air inlet cylinder, the air inlet air bag and a pedal; the bottom of the upright post is provided with an exhaust port communicated with the jacking air bag and an exhaust device used for opening and closing the exhaust port. Through stepping on the footboard, can make the inflation of jacking gasbag, order about the connecting portion and extract the earth bar, need not staff's manual extraction, extract the automatic air escape with in the jacking gasbag of back exhaust apparatus, make whole operation process more laborsaving.

Description

Soil resistivity tester for fire engineering

Technical Field

The application relates to the field of resistance measurement, in particular to a soil resistivity tester for fire engineering.

Background

The soil resistivity is a commonly used parameter in the calculation of grounding engineering, and directly influences the size of the grounding resistance of a grounding device, the ground potential distribution of a ground grid, the contact voltage and the step voltage, and the parameters of the soil resistivity and the parameters are generally obtained through the field test of a soil resistivity tester.

The patent with the publication number of CN210534047U discloses a soil resistivity tester, which comprises a box body, a test host, a storage battery and a ground rod, wherein the test host is fixed in the box body, a test wire storage groove and a ground rod storage groove are formed in the box body, the storage battery is fixed in the box body, an inserting auxiliary device is arranged on the box body, the inserting auxiliary device comprises an electric power-assisted mechanism and a fixing mechanism used for clamping the ground rod, the electric power-assisted mechanism is arranged on the box body, and the fixing mechanism is arranged at the power output end of the electric power-assisted mechanism.

With respect to the related art among the above, there are the following drawbacks: in the process that an operator pulls out the grounding rod after the test is finished, the force applied to the grounding rod cannot be guaranteed to be vertical and upward, and the grounding rod is easy to bend.

SUMMERY OF THE UTILITY MODEL

In order to effectively avoid the earth bar to be broken off with the fingers and thumb, this application provides a soil resistivity tester for fire engineering.

The application provides a soil resistivity tester for fire engineering adopts following technical scheme:

the utility model provides a soil resistivity tester for fire engineering, includes test host computer, wire and earth bar, still includes gets excellent device, it includes the base to get excellent device, be provided with the stand on the base, it is provided with branch to slide along vertical direction on the stand, be provided with the connecting portion that are used for connecting the earth bar on the branch, be provided with the drive assembly who is used for ordering about branch lift on the stand.

Through adopting above-mentioned technical scheme, when needing to extract the earth bar, will get the excellent device and place subaerially, be connected connecting portion and earth bar, order about branch through drive assembly and rise to extract the earth bar, need not the staff and manually extract, make the process of extracting more laborsaving.

Preferably, drive assembly includes jacking gasbag, first push pedal and air inlet portion, stand cavity sets up, the jacking gasbag sets up in the stand, the bottom of stand is provided with the gas vent with jacking gasbag intercommunication, be provided with the exhaust apparatus who is used for opening and close the gas vent on the stand, first bar hole has been seted up along vertical direction on the lateral wall of stand, the one end of branch stretches into in the stand through first bar hole, vertical direction slip setting is followed in the stand to first push pedal, first push pedal be located jacking gasbag top and with the stretching into end fixed connection of branch, be provided with the end of giving vent to anger on the jacking gasbag and face the first check valve in the jacking gasbag, check valve and air inlet portion intercommunication.

Through adopting above-mentioned technical scheme, start the air inlet portion, with the air injection jacking gasbag in, thereby the jacking gasbag inflation jack-up first push pedal makes progress to drive branch and extract the bottom surface with the earth bar, make the cost of whole device lower as drive arrangement through adopting the gasbag, occupation space is less, conveniently carries.

Preferably, the air inlet portion includes an air inlet cylinder, an air inlet airbag and a pedal, the air inlet cylinder is arranged on the side wall of the stand, the air inlet airbag is arranged in the air inlet cylinder and communicated with the first one-way valve, a second strip-shaped hole is formed in the outer wall of the air inlet cylinder along the vertical direction, the pedal is slidably arranged in the second strip-shaped hole and extends into the air inlet cylinder, a second push plate fixedly connected with the air inlet airbag is slidably arranged on the air inlet airbag along the vertical direction, the pedal extends into the part of the second push plate fixedly connected with the air inlet cylinder, and an air outlet end is arranged on the air inlet airbag and faces towards the inner second one-way valve of the pedal.

Through adopting above-mentioned technical scheme, upwards lift the footboard, inhale the gasbag that admits air through the second check valve in with the air, make the gasbag inflation of admitting air, then step on the footboard downwards, the air in the gasbag that will admit air of second push pedal is through first check valve propulsion jacking gasbag in, orders about jacking gasbag inflation to extract the earth bar. The operation process only needs the staff to step on downwards, convenient and fast.

Preferably, be provided with in the inflator and be used for driving about the gliding spring of second push pedal upwards, the spring housing is established outside the gasbag that admits air, the both ends of spring respectively with the diapire fixed connection of second push pedal and inflator.

Through adopting above-mentioned technical scheme, aerify the back spring to the jacking gasbag and upwards jack-up the second push pedal automatically, order about the gasbag that admits air and inhale the air, need not staff manual operation, make operation process convenient and fast more.

Preferably, exhaust apparatus includes chock, guide arm, connecting rod, metal block and magnetic block, the guide arm sets firmly on the outer wall of stand along vertical direction, the chock slides along vertical direction and sets up and be used for opening and close the gas vent on the guide arm, the metal block slides and sets up on the guide arm and be located the chock top, the magnetic block sets firmly and is used for adsorbing the metal block at the top of guide arm, the both ends of connecting rod respectively with chock and metal block fixed connection, branch slide when to the top of stand with the metal block contact, slide when to the bottom of stand with the chock contact.

By adopting the technical scheme, when the supporting rod is positioned at the bottom, the exhaust hole of the jacking air bag is blocked by the plug block, when the jacking air bag expands and drives the supporting rod to ascend, when the supporting rod moves to be in contact with the metal block, the metal block is driven by the supporting rod to ascend, after the metal block reaches the top, the plug block is ascended through the connecting rod, the exhaust hole is opened, and air in the jacking air bag is exhausted; meanwhile, the metal block and the magnetic block are adsorbed, so that the exhaust port is continuously opened. When the air in the jacking air bag is exhausted, the supporting rod descends, and when the supporting rod is contacted with the chock block, the chock block is driven to move downwards to block the exhaust port. Through the operation, the air is automatically discharged by the jacking air bag after the grounding rod is pulled out, and the exhaust hole is automatically plugged after the air is discharged, so that the operation process is more convenient.

Preferably, connecting portion include two torsional springs and two arc splint, two the articulated setting of arc splint is relative keeping away from stand one end and concave surface at branch, the articulated shaft of arc splint sets up along vertical direction, two the torsional spring setting is used for ordering about two arc splint each other near on the articulated shaft of two arc splint, the both ends of torsional spring respectively with arc splint and branch fixed connection, the top of earth bar be provided with the breach of two arc splint looks adaptations.

Through adopting above-mentioned technical scheme, with the breach position of two direct centre gripping of arc splint to the earth bar, thereby the torsional spring orders about arc splint and is close to each other and hugs closely with the breach, effectively avoids the in-process earth bar that the earth bar extracted to drop.

Preferably, the ends, far away from the support rod, of the two arc-shaped clamping plates are provided with turned-over edges far away from each other.

Through adopting above-mentioned technical scheme, directly leaning on the turn-ups on the lateral wall of earth bar during the centre gripping earth bar, order about two arc splint and keep away from, then with the earth bar centre gripping, need not staff's manual installation, make the process convenient and fast more of centre gripping earth bar.

Preferably, a sliding layer is arranged on the side wall of the flanging.

Through adopting above-mentioned technical scheme, reduce the friction between turn-ups and the earth bar, make the process of centre gripping earth bar convenient and fast more.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the connecting part for pulling out the grounding rod, the jacking air bag for driving the connecting part to rise and the air inlet air bag for injecting air into the jacking air bag are arranged on the stand column, the pedal for extruding the air inlet air bag is arranged on the air inlet air bag, the jacking air bag can be expanded by stepping on the pedal to drive the connecting part to pull out the grounding rod, manual pulling out by workers is not needed, and the process of pulling out the grounding rod is more labor-saving;

2. the upright post is provided with an exhaust port for exhausting air in the jacking air bag and an exhaust device for automatically opening and closing the exhaust port, when the support rod moves to the top to pull out the grounding rod, the exhaust device automatically opens the exhaust port to exhaust the air in the jacking air bag, and the exhaust port is automatically closed after the air is exhausted, so that the operation process is more convenient and faster;

3. the spring for driving the pedal to slide upwards is sleeved on the air inlet air bag, so that the air inlet air bag can automatically suck air without manual operation of an operator, and the operation process is more convenient and faster.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a rod taking device in the embodiment of the application.

Fig. 3 is a partially sectional schematic view of a column portion in an embodiment of the present application.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Fig. 5 is a partially sectional schematic view of an air intake portion in the embodiment of the present application.

Description of reference numerals: 1. a test host; 2. a wire; 3. a ground rod; 4. a rod taking device; 5. a base; 6. a column; 7. a strut; 8. a connecting portion; 81. an arc-shaped splint; 82. a torsion spring; 83. flanging; 84. a first bar-shaped hole; 9. a drive assembly; 91. jacking the air bag; 92. a first push plate; 93. a first check valve; 94. an exhaust port; 10. an air intake portion; 101. an air inlet cylinder; 102. an air intake bladder; 103. a pedal; 104. a second push plate; 105. a second one-way valve; 106. a second bar-shaped hole; 11. a spring; 12. an exhaust device; 121. a chock block; 122. a guide bar; 123. a metal block; 124. a magnetic block; 125. a connecting rod; 126. a linkage block.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a soil resistivity tester for fire engineering. Referring to fig. 1, a soil resistivity tester for fire engineering includes a test main 1, four sets of wires 2, four ground rods 3 and a rod taking device 4, all of which are contained in a suitcase.

Referring to fig. 2, 3 and 5, the rod taking device 4 is arranged on the base 5 and comprises a stand 6, an air inlet cylinder 101 and a connecting part 8 for connecting the grounding rod 3. A connecting part 8 for connecting the grounding rod 3 is arranged on the upright post 6 in a sliding manner along the vertical direction; a driving assembly 9 for driving the connecting part 8 to ascend and descend is arranged in the upright post 6 and comprises a jacking air bag 91 and a first push plate 92; the air inlet cylinder 101 is connected to the outer wall of the upright post 6, and an air inlet part 10 for driving the jacking air bag 91 to expand is arranged in the air inlet cylinder 101; the bottom of the upright post 6 is provided with an exhaust port 94 communicated with the jacking air bag 91 and an exhaust device 12 for opening and closing the exhaust port 94.

Referring to fig. 3 and 4, the connecting portion 8 includes a torsion spring 82 and two arc-shaped clamping plates 81. First bar hole 84 has been seted up along vertical direction on the lateral wall of stand 6, and the one end of branch 7 stretches into first bar hole 84. Two arc splint 81 are articulated to be set up and keep away from the one end of stand 6 at branch 7 and the concave surface is relative, and the articulated shaft is vertical to be set up. The torsion spring 82 is sleeved on the hinge shaft of the two arc-shaped clamping plates 81, and two ends of the torsion spring are respectively welded with the arc-shaped clamping plates 81 and the supporting rod 7. One end of the two arc-shaped clamping plates 81 far away from the upright post 6 is arranged in the shape of a flanging 83 which is turned outwards, and the surface of the flanging 83 is coated with a Teflon sliding layer.

Two notches matched with the arc-shaped clamping plates 81 are formed in the top of the grounding rod 3. When connecting earth bar 3, with turn-ups 83 and the contact of earth bar 3 then promote stand 6, earth bar 3 orders about arc splint 81 through turn-ups 83 and outwards opens then the card is gone into the breach, with the joint of earth bar 3.

Referring to fig. 3 and 4, the first push plate 92 is horizontally disposed in the column 6, and one end of the strut 7 extending into the column 6 is welded to the first push plate 92. The jacking air bag 91 is arranged at the bottom of the first push plate 92, a first one-way valve 93 is arranged on the jacking air bag 91, and an air-tight core with an exhaust end facing the interior of the air bag is arranged in the one-way valve. An exhaust port 94 is arranged at the bottom of the jacking air bag 91 and close to the first strip-shaped hole 84.

Referring to fig. 2 and 5, the air intake portion 10 includes an air intake bag 102, a second push plate 104, and a pedal 103. An air inlet cylinder 101 is fixed on one side of the upright post 6 far away from the first strip-shaped hole 84 through a fixing rod, an air inlet air bag 102 is installed in the air inlet cylinder 101, and a second push plate 104 is arranged at the top of the air inlet air bag 102 in a sliding mode along the vertical direction and is bonded with the top of the air inlet air bag 102. The bottom of the intake air bag 102 communicates with the intake end of the first check valve 93, and the intake air bag 102 is provided with a second check valve 105 whose exhaust end faces the inside thereof. A second strip-shaped hole 106 is formed in one side, far away from the upright post 6, of the air inlet cylinder 101 in the vertical direction, the pedal 103 is arranged in the second strip-shaped hole 106 in a sliding mode in the vertical direction, and one end, extending into the second strip-shaped hole 106, of the pedal 103 is welded with the second push plate 104. The outer part of the air inlet air bag 102 is sleeved with a spring 11 for driving the second push plate 104 to rise upwards, and two ends of the spring 11 are respectively welded with the second push plate 104 and the bottom wall of the air cylinder. Spring 11 impels footboard 103 to slide upwards and makes the automatic air that inhales of gasbag 102 admits air, then the staff steps on footboard 103 downwards, and the second push pedal 104 will admit air the air in the gasbag 102 and push into jacking gasbag 91 through first check valve 93, thereby jacking gasbag 91 inflation upwards jacks up first push pedal 92 to drive branch 7 and pull out the bottom surface with earth bar 3. The whole process is convenient and labor-saving.

Referring to fig. 3 and 4, the exhaust device 12 includes a stopper 121, a guide rod 122, a connecting rod 125, a ferrous metal block 123 and a magnetic block 124 made of a permanent magnet, the guide rod 122 is fixedly arranged on the outer wall of the upright post 6 along the vertical direction, and the guide rod 122 is positioned in front of the exhaust port 94. The chock 121 slides along vertical direction and sets up on the guide arm 122, and the welding has an accommodation groove that is used for holding chock 121 on the gas vent 94, and when chock 121 slides to the accommodation groove in, chock 121 blocks up gas vent 94. The metal block 123 is slidably disposed on the guide rod 122 and located above the stopper 121, the magnetic block 124 is fixedly disposed on the top of the guide rod 122, and when the metal block 123 moves to the top, the magnetic block 124 attracts the metal block 123. Two ends of the connecting rod 125 are respectively fixedly connected with the plug 121 and the metal block 123, and the length of the connecting rod 125 is smaller than that of the guide rod 122, when the plug 121 blocks the exhaust port 94, the metal block 123 leaves the magnetic block 124, and when the metal block 123 is attracted to the magnetic block 124, the plug 121 leaves the exhaust port 94. A linkage block 126 welded with the support rod 7 is arranged between the metal block 123 and the plug block 121 in a sliding mode along the vertical direction, when the support rod 7 slides upwards to the top, the linkage block 126 drives the metal block 123 to move upwards, and when the support rod 7 slides downwards to the bottom, the linkage block 126 drives the plug block 121 to block the air inlet.

The implementation principle of the soil resistivity tester for the fire engineering in the embodiment of the application is as follows: when the rod needs to be taken after the measurement is completed, the rod taking device 4 is placed on the ground, the two arc-shaped clamping plates 81 are clamped to the position of the notch at the top of the grounding rod 3, the pedal 103 is stepped downwards, the air inlet air bag 102 is driven to press air into the jacking air bag 91 through the first one-way valve 93, the foot is lifted up, the spring 11 drives the second push plate 104 to ascend, the air is sucked through the second one-way valve 105, the pedal 103 is stepped again, and the supporting rod 7 is driven by the jacking air bag 91 through the first push plate 92 to pull out the grounding rod 3. After the grounding rod 3 is pulled out, the supporting rod 7 moves to the top end of the upright post 6, the metal block 123 is driven to move upwards to be adsorbed to the magnetic block 124, the metal block 123 pulls out the plug block 121 upwards through the connecting rod 125, the air outlet 94 is opened to discharge air in the jacking air bag 91, the supporting rod 7 begins to descend, and when the supporting rod 7 descends to be in contact with the plug block 121, the plug block 121 is driven to descend, and the air outlet 94 is blocked again. In the whole process, the working personnel only need to step on the pedal 103, and can extract the ground rod 3, so that the process of extracting the ground rod is more labor-saving, and the air in the jacking air bag 91 is automatically discharged after the ground rod 3 is extracted, so that the process of extracting the ground rod 3 is more convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a soil resistivity tester for fire engineering, includes test host (1), wire (2) and earth bar (3), its characterized in that: still including getting excellent device (4), it includes base (5) to get excellent device (4), be provided with stand (6) on base (5), it is provided with branch (7) to slide along vertical direction on stand (6), be provided with connecting portion (8) that are used for connecting earth bar (3) on branch (7), be provided with drive assembly (9) that are used for ordering about branch (7) and go up and down on stand (6).

2. The soil resistivity tester for fire engineering according to claim 1, characterized in that: the driving assembly (9) comprises a jacking air bag (91), a first push plate (92) and an air inlet part (10), the upright post (6) is hollow, the jacking air bag (91) is arranged in the upright post (6), an air outlet (94) communicated with the jacking air bag (91) is formed in the bottom of the upright post (6), an exhaust device (12) used for opening and closing the air outlet (94) is arranged on the upright post (6), a first strip-shaped hole (84) is formed in the side wall of the upright post (6) along the vertical direction, one end of the supporting rod (7) extends into the upright post (6) through the first strip-shaped hole (84), the first push plate (92) is arranged in the upright post (6) along the vertical direction in a sliding manner, the first push plate (92) is positioned above the jacking air bag (91) and fixedly connected with the extending end of the supporting rod (7), a first check valve (93) with the air outlet end facing the jacking air bag (91) is arranged on the jacking air bag (91), the air inlet end of the first one-way valve (93) is communicated with the air inlet part (10).

3. The soil resistivity tester for fire engineering according to claim 2, characterized in that: the air inlet part (10) comprises an air inlet cylinder (101), an air inlet air bag (102) and a pedal (103), the air inlet cylinder (101) is arranged on the base (5), the air inlet air bag (102) is arranged in the air inlet cylinder (101) and is communicated with the first one-way valve (93), a second strip-shaped hole (106) is arranged on the side wall of the air inlet cylinder (101) along the vertical direction, the pedal (103) is arranged in the second strip-shaped hole (106) in a sliding manner along the vertical direction and extends into the air inlet cylinder (101), a second push plate (104) fixedly connected with the air inlet air bag (102) is arranged in the air inlet cylinder (101) in a sliding way along the vertical direction, one end of the pedal (103) extending into the air inlet cylinder (101) is fixedly connected with a second push plate (104), the air inlet air bag (102) is provided with a second one-way valve (105) with an air outlet end facing the interior of the air inlet air bag, and the air inlet end of the second one-way valve (105) is communicated with the outside.

4. The soil resistivity tester for fire engineering according to claim 3, characterized in that: the air inlet cylinder (101) is internally provided with a spring (11) used for driving the second push plate (104) to slide upwards, the spring (11) is sleeved on the air inlet air bag (102), and two ends of the spring (11) are respectively fixedly connected with the second push plate (104) and the air inlet cylinder (101).

5. The soil resistivity tester for fire engineering according to claim 3, characterized in that: exhaust apparatus (12) include chock (121), guide arm (122), connecting rod (125), metal block (123) and magnetic block (124), guide arm (122) set firmly on the outer wall of stand (6) along vertical direction, chock (121) slide along vertical direction and set up and be used for opening and close gas vent (94) on guide arm (122), metal block (123) slide and set up on guide arm (122) and be located chock (121) top, magnetic block (124) set firmly top at guide arm (122) and are used for adsorbing metal block (123), the both ends of connecting rod (125) respectively with chock (121) and metal block (123) fixed connection, branch (7) slide when the top of stand (6) with metal block (123) contact, slide when the bottom of stand (6) with chock (121) contact.

6. The soil resistivity tester for fire engineering according to claim 1, characterized in that: connecting portion (8) include two torsional springs (82) and two arc splint (81), two the articulated setting of arc splint (81) is kept away from stand (6) one end and the concave surface in branch (7) and is relative, the articulated shaft of arc splint (81) sets up along vertical direction, two torsional spring (82) set up and are used for ordering about two arc splint (81) on the articulated shaft of two arc splint (81) and are close to each other, the both ends of torsional spring (82) respectively with arc splint (81) and branch (7) fixed connection, the top of earth bar (3) be provided with the breach of two arc splint (81) looks adaptations.

7. The soil resistivity tester for fire engineering according to claim 6, characterized in that: and one ends of the two arc-shaped clamping plates (81) far away from the supporting rod (7) are provided with turned-over edges (83) far away from each other.

8. The soil resistivity tester for fire engineering according to claim 7, characterized in that: and a sliding layer is arranged on the side wall of the flanging (83).