Tunnel trench cover plate turning and uncovering tool

Abstract

The utility model relates to the technical field of power maintenance devices, and particularly discloses a tunnel trench cover plate turning and uncovering tool which comprises a clamping unit, the clamping unit comprises a U-shaped plate for hooking the front end of a cover plate and a 7-shaped plate for shoveling the rear end of the cover plate, and the top end of the U-shaped plate is fixedly connected with a movable arm perpendicular to the top end face of the U-shaped plate; the top end of the 7-shaped spanner is fixedly connected with a pair of triangular clamping arms which are symmetrically arranged, the movable arm penetrates through the triangular clamping arms which are symmetrically arranged, the end, penetrating through the triangular clamping arms, of the movable arm is fixedly connected with a connecting rod, and the movable arm is hinged to the inner sides of the triangular clamping arms which are symmetrically arranged through a first rotating shaft. The cover plate is hooked from the upper end face and the lower end face of the cover plate through the U-shaped plate, then the cover plate is buckled from the side face of the cover plate through the 7-shaped plate, the included angle between the triangular clamping arm and the movable arm is reduced, the cover plate can be tightly clamped through cooperation of the U-shaped plate and the 7-shaped plate, and in the cover plate turning and uncovering process, due to the fact that the cover plate is buckled from the bottom end face of the cover plate through the U-shaped plate, the cover plate is not prone to falling off. And the safety of the cover plate turning and uncovering process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to power maintenance device technical field, concretely relates to a tunnel ditch cover plate turns over and exposes instrument. BACKGROUND

[0002] When the engineering team carries out maintenance and repair operation to the cable and related equipment in the tunnel maintenance path, the tunnel ditch cover plate needs to be turned over and exposed, the tunnel ditch cover plate is generally arranged continuously in rows, each tunnel ditch cover plate is about 80Kg, the self weight is heavy, the traditional turning over and exposing method is to pry open the cover plate with a crowbar, then two people lift up by joint effort, since the operation space of the maintenance path is narrow, the cover plate is easy to drop and fall to the feet during manual lifting, so the manual lifting mode of the cover plate has great safety risk and low efficiency, in order to improve construction efficiency, reduce safety risk and reduce cost and increase efficiency, the present Chinese invention patent application with the publication number CN113735033A discloses a cable ditch cover plate opening device, the device includes a clamping unit, the clamping unit includes two rotationally connected clamping rods, the clamping rod includes an abutting portion and a clamping portion, when the cable ditch cover plate is opened, the clamping portion clamps the two sides of the cable ditch cover plate, the abutting piece of the lifting unit is tightly attached to the abutting portion of the clamping rod, and the included angle between the abutting portions of the two clamping rods is an acute angle. The clamping portion of the clamping unit is used for clamping the cable ditch cover plate, the cable ditch cover plate is opened through the clamping unit, the cable ditch cover plate can be quickly and conveniently opened, it is not necessary to pry open the cable ditch cover plate with a crowbar, damage to the cable ditch cover plate is avoided, the cable ditch cover plate is lifted by using the lever principle, the labor intensity of the operating personnel is reduced, and the working efficiency is improved. Since the clamping portion of the device is a downwardly extending hook, the hook can only clamp the cable ditch cover plate from the side of the cable ditch cover plate, when the clamping portion is lifted upward, the cable ditch cover plate is lifted upward, and the cable ditch cover plate is particularly easy to fall off and fall to the ground, resulting in damage to the cable ditch cover plate or injury to the operating personnel, and the safety cannot be guaranteed. SUMMARY

[0003] The utility model aims at providing a tunnel ditch cover plate turning over and exposing instrument to solve the problem that the cover plate is easy to fall off and fall to the ground during the use of the existing tool, and the safety cannot be guaranteed.

[0004] In order to solve the above problems, the technical scheme is as follows:

[0005] A tunnel ditch cover plate turning over and exposing instrument, including clamping unit, the clamping unit includes the U type board of hooking up the front end of the cover plate and the 7 character type wrench of shoveling up the rear end of the cover plate, the top of U type board is fixedly connected with the movable arm perpendicular to the top surface of U type board, the top of 7 character type wrench is fixedly connected with a pair of symmetrical triangular clamping arms, the movable arm passes through the symmetrical triangular clamping arms, the end of movable arm passing through the triangular clamping arm is fixedly connected with the connecting rod, and the movable arm is hinged with the inner side of the symmetrical triangular clamping arm through the first rotating shaft.

[0006] The basic principle of the technical solution is that the tool is pushed onto the cover plate, the movable arm is turned upward relative to the ground to make the U-shaped plate operate to hook the cover plate from the upper and lower front end faces of the cover plate, the triangular clamping arm moves relative to the movable arm to increase the included angle between the triangular clamping arm and the movable arm, so that the 7-shaped wrench clamps the cover plate from the rear side of the cover plate, at this time the U-shaped plate and the 7-shaped wrench clamp the cover plate, the movable arm is pressed downward to reduce the included angle between the triangular clamping arm and the movable arm, the 7-shaped wrench clamps the cover plate, the U-shaped plate locks the cover plate from the bottom end face, and the cover plate can be turned up and taken out from the tunnel trench.

[0007] The beneficial effects of the technical solution are that the existing clamping part is a downwardly extending hook, which can only clamp the cable trench cover plate from the side of the cable trench cover plate, compared with the present technical solution, the U-shaped plate first hooks the cover plate from the upper and lower end faces of the cover plate, and then the 7-shaped wrench clamps the cover plate from the side of the cover plate, the included angle between the triangular clamping arm and the movable arm is reduced, and the U-shaped plate and the 7-shaped wrench can tightly clamp the cover plate, in the process of turning up the cover plate, the U-shaped plate clamps the cover plate from the bottom end face of the cover plate, the 7-shaped wrench clamps and carries the cover plate to turn up, which ensures that the cover plate will not fall off and ensures the safety of the cover plate turning up process.

[0008] Further, the end of the connecting rod away from the movable arm is fixedly connected with a pedal. The rotation of the movable arm is controlled by stepping on the pedal, so as to control the operation of the U-shaped plate.

[0009] Further, the side away from each other of the symmetrically arranged triangular clamping arms is fixedly connected with a supporting arm, the bottom end of the supporting arm is fixedly connected with a second rotating shaft, and the two ends of the second rotating shaft are symmetrically and rotatably connected with moving wheels. The moving wheels facilitate the movement of the tool.

[0010] Further, the end of the pair of symmetrically arranged triangular clamping arms is fixedly connected with two symmetrically arranged push rods, the triangular clamping arm and the push rod are straight, and the ends of the two symmetrically arranged push rods are fixedly connected with a push handle. The push handle is used to move the tool.

[0011] Further, the push handle is sleeved with an anti-skid rubber sleeve. The anti-skid rubber sleeve has an anti-skid effect, which prevents the push handle from slipping out of the hands of the operator during the pushing process.

[0012] Further, the two symmetrically arranged push rods are fixedly connected with a reinforcing rod in the middle. The reinforcing rod can enhance the strength of the push rod to avoid breakage of the push rod during operation. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a perspective view of the clamping unit of the cover plate turning tool.

[0014] Figure 2Fig. 1 is a side view of the structure of the cover plate turning tool;

[0015] Figure 3 Fig. 2 is a top view of the structure of the cover plate turning tool.

[0016] The reference signs in the attached drawings of the specification include: U-shaped plate 1, 7-shaped handle 2, movable arm 3, triangular clamping arm 4, supporting arm 5, second rotating shaft 6, moving wheel 7, connecting rod 8, pedal 9, push rod 10, reinforcing rod 11, push handle 12, rubber sleeve 13, cover plate 14. DETAILED DESCRIPTION

[0017] The following is further described in detail through specific embodiments:

[0018] The embodiment is basically as shown in the attached drawings: Figures 1-3

[0019] A cover plate 14 turning tool for a tunnel ditch, as shown in Figure 1 and Figure 2 , includes a clamping unit, the clamping unit includes a U-shaped plate 1 hooking the front end of the cover plate and a 7-shaped handle 2 shoveling the rear end of the cover plate, the top end of the U-shaped plate 1 is fixedly connected with a movable arm 3 perpendicular to the top end surface of the U-shaped plate 1, the top end of the 7-shaped handle 2 is fixedly connected with a pair of symmetrically arranged triangular clamping arms 4, the side away from each other of the symmetrically arranged triangular clamping arms 4 is fixedly connected with a supporting arm 5, the bottom end of the supporting arm 5 is fixedly connected with a second rotating shaft 6, the second rotating shaft 6 is symmetrically rotatably connected with moving wheels 7 at both ends, the movable arm 3 passes through the symmetrically arranged triangular clamping arms 4, the end of the movable arm 3 passing through the triangular clamping arms 4 is fixedly connected with a connecting rod 8, the end of the connecting rod 8 away from the movable arm 3 is fixedly connected with a pedal 9, the movable arm 3 and the inside of the symmetrically arranged triangular clamping arms 4 are hingedly connected through a first rotating shaft (not shown in the figure). Figure 3 As shown in, the end of the pair of symmetrically arranged triangular clamping arms 4 is fixedly connected with two symmetrically arranged push rods 10, the two symmetrically arranged push rods 10 are fixedly connected with a reinforcing rod 11 in the middle, the triangular clamping arms 4 and the push rods 10 are straight, the ends of the two symmetrically arranged push rods 10 are fixedly connected with a push handle 12, and the push handle 12 is sleeved with an anti-skid rubber sleeve 13.

[0020] The specific implementation process is as follows:

[0021] Push the push handle 12, the moving wheel 7 moves to push the tool to the cover plate 14, step on the pedal 9 to control the movable arm 3 to rotate upward relative to the ground, so that the U-shaped plate 1 operates to hook the cover plate 14 from the upper and lower two end surfaces of the front end of the cover plate 14, and then push the push handle 12 upward to make the triangular clamping arm 4 move relative to the movable arm 3, increase the included angle between the triangular clamping arm 4 and the movable arm 3, so that the 7-shaped buckle 2 buckles the cover plate 14 from the rear surface of the cover plate 14, at this time the U-shaped plate 1 and the 7-shaped buckle 2 cooperate to clamp the cover plate 14, push the push handle 12 downward to reduce the included angle between the triangular clamping arm 4 and the movable arm 3, the 7-shaped buckle 2 lifts the cover plate 14 downward, and the U-shaped plate 1 locks the cover plate 14 upward, so that the cover plate 14 can be turned up and opened, and the cover plate 14 can be easily taken out from the tunnel ditch by pushing the push handle 12 to move the moving wheel 7. During the turning up of the cover plate 14, the U-shaped plate 1 buckles the cover plate 14 from the bottom end surface of the cover plate 14, and the 7-shaped buckle 2 bears the cover plate 14 to turn up, so that the cover plate 14 cannot fall off, and the safety of the cover plate 14 during the turning up process is ensured. In addition, the straight push rod 10 and the movable arm 3 form a scissors-like structure between the straight movable arm 3, which turns up the cover plate 14 under the action of the lever principle, saves time and effort.

[0022] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme and other common knowledge are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and other records in the specification can be used to explain the content of the claims.

Claims

1. A tool for flipping up tunnel trench covers, comprising a clamping unit, characterized in that: The clamping unit includes a U-shaped plate that hooks up the front end of the cover plate and a 7-shaped plate that lifts up the rear end of the cover plate. A movable arm perpendicular to the top surface of the U-shaped plate is fixedly connected to the top of the U-shaped plate. A pair of symmetrically arranged triangular clamping arms are fixedly connected to the top of the 7-shaped plate. The movable arm passes through the symmetrically arranged triangular clamping arms. A connecting rod is fixedly connected to the end of the movable arm that passes through the triangular clamping arms. The movable arm and the inner side of the symmetrically arranged triangular clamping arms are hinged through a first pivot.

2. The tunnel trench cover flipping tool according to claim 1, characterized in that: A pedal is fixedly connected to the end of the connecting rod away from the movable arm.

3. The tunnel trench cover flipping tool according to claim 2, characterized in that: A support arm is fixedly connected to one side of the symmetrically arranged triangular clamping arm that is opposite to each other. A second rotating shaft is fixedly connected to the bottom end of the support arm. The two ends of the second rotating shaft are symmetrically connected to movable wheels.

4. The tunnel trench cover flipping tool according to claim 3, characterized in that: The ends of the pair of symmetrically arranged triangular clamping arms are fixedly connected to two symmetrically arranged push rods. The triangular clamping arms and push rods are straight, and the ends of the two symmetrically arranged push rods are fixedly connected to a push handle.

5. The tunnel trench cover flipping tool according to claim 4, characterized in that: The push handle is fitted with an anti-slip rubber sleeve.

6. The tunnel trench cover flipping tool according to claim 5, characterized in that: A reinforcing rod is fixedly connected between the two symmetrically arranged push rods.

Images