Well lid pressure testing machine with positioning device

Abstract

The utility model discloses a manhole cover pressure testing machine with a positioning device, which comprises a bottom plate, the lower side of the bottom plate is fixedly connected with a supporting plate, the upper side of the bottom plate is provided with a testing platform, the upper side of the bottom plate is fixedly connected with a fixing frame, the upper side of the fixing frame is fixedly connected with a hydraulic cylinder, and the upper side of the hydraulic cylinder is provided with a positioning device. A sliding groove is formed in the upper side of the bottom plate, sliding blocks are slidably connected to the inner sides of the left end and the right end of the sliding groove, positioning units are arranged on the upper sides of the sliding blocks on the left side and the right side, each positioning unit comprises a fixing box, and the fixing boxes are fixedly connected to the upper sides of the sliding blocks. By arranging the bottom plate, the sliding block, the fixing box, the rotating shaft, the rotating disc, the worm gear, the worm, the rotating disc, the connecting block, the limiting block and the positioning block, the well lid can be conveniently limited by the positioning block, the worn positioning block can be rapidly replaced in the test process, and the test time is prevented from being prolonged.

Description

Technical Field

[0001] The utility model relates to the field of manhole cover pressure testing, in particular to a manhole cover pressure testing machine with a positioning device. Background Art

[0002] Manhole covers are used to cover deep wells on roads or at home to prevent people or objects from falling. According to the material, they can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. They are generally round. They can be used in green belts, sidewalks, motor vehicle lanes, docks, alleys, etc. When producing manhole covers, a pressure testing machine is required to perform a pressure test on the manhole covers.

[0003] After searching, the application number is "202321024103.2", which provides a manhole cover pressure testing machine equipped with a positioning device. When the positioning block needs to be disassembled, maintained or replaced, first pull the connecting plate to move, and the connecting plate drives the positioning plate to move. At the same time, the connecting plate drives the positioning block to move, so that the positioning block is separated from the inner cavity of the groove, and the connecting plate drives the connecting rod to move. The connecting rod slides in the middle of the mounting plate, and then the connecting rod drives the annular plate to move. The annular plate compresses the spring, and the spring generates elastic force on the annular plate. Then the positioning plate slides in the inner cavity of the positioning groove and the through groove, and then the positioning plate is separated from the inner cavity of the positioning groove. At this time, the position limitation of the limit plate is released, and then the fixed plate is pulled to move, and the fixed plate drives the limit plate to separate from the fixed block. At this time, the position limitation of the fixed block is released, and then the positioning block is pulled to move, so that the positioning block is separated from the support rod, and the positioning block can be disassembled and then maintained or replaced.

[0004] By pulling the connecting plate and then the fixing plate, it is convenient to quickly disassemble the positioning blocks for positioning the manhole cover, and to replace the worn positioning blocks. However, this structure requires replacing good positioning blocks when testing the manhole cover, which can easily reduce the testing progress of a large number of manhole covers. Utility Model Content

[0005] In order to overcome the deficiency in the prior art that the worn positioning blocks need to be replaced, which affects the progress of the manhole cover test, one of the purposes of the utility model is to provide a manhole cover pressure testing machine with a positioning device.

[0006] One of the purposes of the utility model is achieved by the following technical solution: a manhole cover pressure testing machine with a positioning device, comprising a bottom plate, a support plate fixedly connected to the lower side of the bottom plate, a test platform arranged on the upper side of the bottom plate, a fixing frame fixedly connected to the upper side of the fixing frame, a hydraulic cylinder fixedly connected to the upper side of the fixing frame, a pressure plate fixedly connected to the output end of the hydraulic cylinder: a slide groove is provided on the upper side of the bottom plate, sliders are slidably connected to the inner sides of the left and right ends of the slide groove, and positioning units are arranged on the upper sides of the sliders on the left and right sides;

[0007] The positioning unit includes a fixed box, which is fixedly connected to the upper side of the slider, a rotating shaft is rotatably connected to the upper side of the fixed box, a turntable is fixedly connected to the upper end of the rotating shaft, a worm gear is fixedly connected to the outer side of the lower end of the rotating shaft, a worm is rotatably connected to the inner side of the fixed box, connecting blocks are fixedly connected to the upper sides of the left and right ends of the turntable, a fixed plate is fixedly connected to the outer side of the connecting block, limit plates are arranged on the upper and lower sides of the fixing plate, and a positioning block is arranged between the limit plates on the upper and lower sides.

[0008] According to the manhole cover pressure testing machine with a positioning device, the worm wheel is meshedly connected with the worm, which is convenient for controlling the rotation of the rotating shaft.

[0009] According to the manhole cover pressure testing machine with a positioning device, the front side of the fixed box is fixedly connected with the second motor, and the output end of the second motor is fixedly connected with the front end of the worm, so as to facilitate the control of the rotation of the worm.

[0010] According to the manhole cover pressure testing machine with a positioning device, the upper and lower sides of the fixed plate are fixedly connected with side plates, a bidirectional screw rod 1 is rotatably connected between the two side plates, opposite threads are arranged at both ends of the bidirectional screw rod 1, and both ends of the bidirectional screw rod 1 are respectively threadedly connected with the upper and lower limit plates, so as to facilitate the control of the upper and lower limit plates to move toward each other.

[0011] According to the manhole cover pressure testing machine with a positioning device, the upper end of the bidirectional screw rod 1 is fixedly connected with a turning handle, which is convenient for controlling the rotation of the bidirectional screw rod 1.

[0012] According to the manhole cover pressure testing machine with a positioning device, limiting rods are arranged on the outer sides of the limiting plates on the upper and lower sides, and the limiting rods are slidably connected to the side plates.

[0013] According to the manhole cover pressure testing machine with a positioning device, the inner side of the slideway is rotatably connected with a bidirectional screw rod 2, and the right side of the bottom plate is fixedly connected with a motor 1, so as to facilitate the control of the rotation of the bidirectional screw rod 2.

[0014] According to the manhole cover pressure testing machine with a positioning device, opposite threads are arranged at both ends of the bidirectional screw rod 2, and the two ends of the bidirectional screw rod 2 are respectively threadedly connected to the left and right sliders, so as to facilitate the control of the left and right sliders to move toward each other.

[0015] Beneficial effects:

[0016] 1. By providing a bottom plate, a slider, a fixed box, a rotating shaft, a turntable, a worm gear, a worm, a turntable, a connecting block, a limit block and a positioning block, it is convenient to limit the manhole cover with the positioning block, and during the test, the worn positioning block can be quickly replaced to avoid increasing the test time.

[0017] 2. By setting up the connecting block, the fixing plate, the limiting plate, the side plate and the bidirectional screw, it is convenient to control the upper and lower limiting plates to move toward each other, and the positioning block can be removed quickly and conveniently, and the operation is simple.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0020] Figure 1 This is an overall three-dimensional structural diagram of a manhole cover pressure testing machine with a positioning device according to the utility model;

[0021] Figure 2 This is a bottom-up stereoscopic structural diagram of a manhole cover pressure testing machine with a positioning device according to the utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of a positioning unit in a manhole cover pressure testing machine with a positioning device according to the utility model;

[0023] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 The utility model is a sectional three-dimensional structural diagram of a positioning unit in a manhole cover pressure testing machine with a positioning device.

[0025] Legend:

[0026] 1. Bottom plate; 2. Test platform; 3. Support plate; 4. Motor 1; 5. Slide; 6. Slider; 7. Positioning unit; 701. Fixed box; 702. Motor 2; 703. Rotating shaft; 704. Turntable; 705. Connecting block; 706. Fixed plate; 707. Side plate; 708. Bidirectional screw 1; 709. Limit rod; 710. Limit plate; 711. Positioning block; 712. Turn handle; 713. Worm gear; 714. Worm; 8. Fixed frame; 9. Hydraulic cylinder; 10. Press plate; 11. Bidirectional screw 2. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0028] Reference Figure 1-5 A manhole cover pressure testing machine with a positioning device comprises a bottom plate 1, a support plate 3 is fixedly connected to the lower side of the bottom plate 1, a test platform 2 is arranged on the upper side of the bottom plate 1, a fixing frame 8 is fixedly connected to the upper side of the bottom plate 1, a hydraulic cylinder 9 is fixedly connected to the upper side of the fixing frame 8, and a pressing plate 10 is fixedly connected to the output end of the hydraulic cylinder 9: a slide groove 5 is opened on the upper side of the bottom plate 1, and sliders 6 are slidably connected to the inner sides of the left and right ends of the slide groove 5, and positioning units 7 are arranged on the upper sides of the sliders 6 on the left and right sides, and a bidirectional screw rod 11 is rotatably connected to the inner side of the slide groove 5, a motor 14 is fixedly connected to the right side of the bottom plate 1, and opposite threads are arranged at both ends of the bidirectional screw rod 11, and the two ends of the bidirectional screw rod 11 are arranged on both sides of the bidirectional screw rod 11. The two ends are respectively threadedly connected with the left and right sliders 6. During the test, the manhole cover is placed on the test platform 2, and then the manhole cover is positioned by the positioning unit 7. Then the hydraulic cylinder 9 is controlled to drive the pressure plate 10 to descend, and the pressure plate 10 presses down the manhole cover. When positioning, start the motor 4, and the motor 4 drives the two-way screw 2 11 to rotate. The two-way screw 2 11 drives the left and right sliders 6 to approach each other, and the slider 6 drives the positioning block 711 to move, so that the positioning blocks 711 on the left and right sides can position the manhole cover, which is convenient for the subsequent tests. A PLC controller is arranged on the outside, and the PLC controller is electrically connected to the motor 1 4 and the motor 2 702, so as to facilitate the operation of the pressure testing machine.

[0029] The positioning unit 7 includes a fixed box 701, which is fixedly connected to the upper side of the slider 6. The upper side of the fixed box 701 is rotatably connected to a rotating shaft 703, and the upper end of the rotating shaft 703 is fixedly connected to a rotating disk 704. The outer side of the lower end of the rotating shaft 703 is fixedly connected to a worm gear 713, and the inner side of the fixed box 701 is rotatably connected to a worm 714. The upper sides of the left and right ends of the rotating disk 704 are fixedly connected to connecting blocks 705, and the outer side of the connecting block 705 is fixedly connected to a fixed plate 706. The upper and lower sides of the fixed plate 706 are both provided with limit plates 710, and a positioning block 711 is provided between the upper and lower limit plates 710. The worm gear 713 is meshed with the worm 714, and the front side of the fixed box 701 is fixedly connected to the motor 2 702, and the motor 2 714 is fixedly connected to the motor 2 714. The output end of 02 is fixedly connected to the front end of the worm 714. When the positioning block 711 is used for a period of time, the positioning block 711 is worn. At this time, the positioning block 711 is controlled to separate from the manhole cover, and then the motor 2 702 is started. The motor 2 702 drives the worm 714 to rotate, the worm 714 drives the worm wheel 713 to rotate, the worm wheel 713 drives the rotating shaft 703 to rotate, the rotating shaft 703 drives the turntable 704 to rotate, the rotating shaft 703 drives the turntable 704 to rotate, the turntable 704 drives the connecting block 705 to rotate, the connecting block 705 drives the fixed plate 706 to rotate, the fixed plate 706 drives the positioning block 711 on the limit plate 710 to rotate, so that the positioning blocks 711 on the left and right sides are adjusted, which is convenient for quickly replacing the worn positioning blocks 711, and the operation is simple.

[0030] The upper and lower sides of the fixed plate 706 are fixedly connected with side plates 707, and a bidirectional screw rod 708 is rotatably connected between the two side plates 707. The two ends of the bidirectional screw rod 708 are provided with opposite threads, and the two ends of the bidirectional screw rod 708 are respectively threadedly connected with the upper and lower limit plates 710. The upper end of the bidirectional screw rod 708 is fixedly connected with a turning handle 712, and the outer side of the upper and lower limit plates 710 is provided with a limiting rod 709, and the limiting rod 709 is slidably connected with the side plates 707. When the work is finished, the staff turns the turning handle 712, and the turning handle 712 drives the bidirectional screw rod 708 to rotate, and the bidirectional screw rod 708 drives the upper and lower limit plates 710 to move away from each other, so that the positioning block 711 can be quickly disassembled and replaced with a new positioning block, which is easy to operate.

[0031] Working principle: When in use, the staff first places the manhole cover on the test platform 2, and then starts the motor 1 4. Under the action of the bidirectional screw 2 11, the left and right positioning blocks 711 limit the manhole cover, and then control the pressure plate 10 to press the manhole cover down.

[0032] When the worn positioning block 711 needs to be replaced, the positioning block 711 is controlled to separate from the manhole cover, and then the motor 2 702 is started to drive the worm 714 to rotate. Under the action of the worm gear 713, the rotating shaft 703, the turntable 704, the connecting block 705 and the fixing plate 706, it is convenient to quickly control the worn positioning block 711 to adjust the position with the new positioning block 711, so as to facilitate and quickly carry out the next test, and the operation is simple. After the work is completed, the two-way screw 1 708 on the turning handle 712 is turned to facilitate the separation of the limit plate 710 from the positioning block 711, so as to facilitate the removal of the positioning block 711, and the operation is simple.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A manhole cover pressure testing machine with a positioning device, characterized in that: The invention comprises a bottom plate (1), a support plate (3) is fixedly connected to the lower side of the bottom plate (1), a test platform (2) is arranged on the upper side of the bottom plate (1), a fixing frame (8) is fixedly connected to the upper side of the bottom plate (1), a hydraulic cylinder (9) is fixedly connected to the upper side of the fixing frame (8), and a pressure plate (10) is fixedly connected to the output end of the hydraulic cylinder (9): a slide groove (5) is provided on the upper side of the bottom plate (1), a slider (6) is slidably connected to the inner side of the left and right ends of the slide groove (5), and a positioning unit (7) is arranged on the upper side of the sliders (6) on both sides; The positioning unit (7) comprises a fixed box (701), wherein the fixed box (701) is fixedly connected to the upper side of the slider (6), the upper side of the fixed box (701) is rotatably connected to a rotating shaft (703), the upper end of the rotating shaft (703) is fixedly connected to a rotating disk (704), the outer side of the lower end of the rotating shaft (703) is fixedly connected to a worm gear (713), the inner side of the fixed box (701) is rotatably connected to a worm gear (714), the upper sides of the left and right ends of the rotating disk (704) are fixedly connected to connecting blocks (705), the outer side of the connecting block (705) is fixedly connected to a fixing plate (706), the upper and lower sides of the fixing plate (706) are both provided with limit plates (710), and a positioning block (711) is provided between the limit plates (710) on the upper and lower sides.

2. A manhole cover pressure testing machine with a positioning device according to claim 1, characterized in that: The worm wheel (713) is meshingly connected with the worm (714).

3. A manhole cover pressure testing machine with a positioning device according to claim 1, characterized in that: The front side of the fixed box (701) is fixedly connected to a second motor (702), and the output end of the second motor (702) is fixedly connected to the front end of the worm (714).

4. A manhole cover pressure testing machine with a positioning device according to claim 1, characterized in that: The upper and lower sides of the fixed plate (706) are fixedly connected with side plates (707), and a bidirectional screw rod (708) is rotatably connected between the two side plates (707). The two ends of the bidirectional screw rod (708) are provided with opposite threads, and the two ends of the bidirectional screw rod (708) are respectively threadedly connected with the upper and lower limit plates (710).

5. A manhole cover pressure testing machine with a positioning device according to claim 4, characterized in that: The upper end of the bidirectional screw rod 1 (708) is fixedly connected to a turning handle (712).

6. A manhole cover pressure testing machine with a positioning device according to claim 4, characterized in that: Limiting rods (709) are arranged on the outer sides of the limiting plates (710) at the upper and lower sides, and the limiting rods (709) are slidably connected to the side plates (707).

7. The manhole cover pressure testing machine with a positioning device according to claim 1, characterized in that: The inner side of the slide groove (5) is rotatably connected to a bidirectional screw rod 2 (11), and the right side of the base plate (1) is fixedly connected to a motor 1 (4).

8. A manhole cover pressure testing machine with a positioning device according to claim 7, characterized in that: The two ends of the bidirectional screw rod 2 (11) are provided with opposite threads, and the two ends of the bidirectional screw rod 2 (11) are respectively threadedly connected to the left and right side sliders (6).

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