Novel spiral locking type box staff

Abstract

The utility model provides a novel spiral locking type box staff which comprises an upper section and a lower section, the upper section and the lower section are connected through a spiral locking device, and the upper section and the lower section are both cylinders. The spiral locking device comprises a connecting rod, an upper gear and a lower gear, and the spiral locking device and the upper section are connected into a whole through the connecting rod. According to the novel spiral locking type box staff, the upper section, the lower section, the spiral locking device, the connecting rod, the upper gear, the lower gear, the rib and the groove are matched with one another, the spiral locking device is arranged in the box staff, and the box staff is opened and closed through the combination of the upper gear, the lower gear, the connecting rod, the groove and the rib, so that the purpose that holes are not formed in the staff surface is achieved; the spiral locking type telemeter rod is simple in structure, novel and reasonable in design, easy to install and low in manufacturing cost, and holes can be prevented from being formed in the rod face, and the purposes of reliability and durability are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of measurement auxiliary tools, especially relates to a novel spiral locking type staff gauge. BACKGROUND

[0002] Staff gauges are commonly used in various engineering measurement operations (such as level elevation measurement, trigonometric elevation measurement, topographic surveying, etc.), and are used in conjunction with various surveying instruments to measure elevations and are the main tools for measuring elevations.

[0003] The staff gauges that are widely used at present are composed of multiple telescopic segments, locking devices, and scale markings, the segments are usually made of metal or high-strength plastic, and the locking devices are used to fix the segments.

[0004] The commonly used locking devices are ordinary buckle types, and due to their simple structure and high damage rate, they often cause the staff gauges to be unable to be normally opened and closed, resulting in inaccurate readings and affecting the measurement work; the scale markings are not provided on the positions of the buckle openings, which causes reading errors and affects the measurement work.

[0005] Therefore, it is necessary to provide a novel spiral locking type staff gauge to solve the above technical problems. SUMMARY

[0006] The utility model provides a novel spiral locking type staff gauge, and solves the technical problems that the locking devices of the existing staff gauges are prone to damage and errors are caused by the absence of scale markings on the positions of the openings.

[0007] To solve the above technical problems, the utility model provides a novel spiral locking type staff gauge, which comprises an upper segment and a lower segment.

[0008] The upper segment and the lower segment are connected through a spiral locking device, and the upper segment and the lower segment are both cylindrical.

[0009] The spiral locking device comprises a connecting rod, an upper gear and a lower gear, the connecting rod is connected to the upper segment to form a whole, the inner side of the lower segment is provided with ribs, and the surfaces of the upper gear and the lower gear are both provided with grooves.

[0010] Preferably, the center of the upper gear is a hole, the connecting rod passes through the hole to place the upper gear above the lower gear, the upper gear is not connected to the connecting rod, and the upper gear can move up and down along the connecting rod and can rotate freely around the connecting rod.

[0011] Preferably, the grooves and the ribs are of appropriate sizes, and the ribs penetrate the lower segment.

[0012] Preferably, the upper segment and the lower segment are provided with guide grooves on both sides of the outer surfaces, the guide grooves are internally fixedly installed with guide rods, the surface of the guide groove inner cavity wall is fixedly installed with an iron plate, the outer surface of the guide rod is slidably installed with a moving part, and the moving part is provided with a magnifying device on one side.

[0013] Preferably, the moving part comprises a sliding block, a magnetic block, an extension plate and a connecting plate, the sliding block is slidably installed on the outer surface of the guide rod, the magnetic block is fixedly installed on one side of the outer surface of the sliding block, the extension plate is fixedly connected to the other side of the outer surface of the magnetic block, and the connecting plate is fixedly connected to one side of the surface of the extension plate.

[0014] Preferably, the sliding block and the guide groove are matched.

[0015] Preferably, the magnifying device adopts a magnifying glass structure.

[0016] Compared with the related art, the novel spiral locking type staff provided by the utility model has the following advantages

[0017] Beneficial effects:

[0018] The utility model provides a novel spiral locking type staff, through mutual cooperation of upper segment, lower segment, spiral locking device, connecting rod, upper gear, lower gear, rib and recess, spiral locking device sets up in the staff interior, through upper gear, lower gear, connecting rod, recess, rib combination completes the opening and closing of staff, to realize not in the hole of the staff surface, can avoid the hole on the staff surface, realizes reliable durable purpose, spiral locking type staff simple structure, novel and reasonable in design, easy to install, low in cost. ACCURACY OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the first embodiment of the novel spiral locking type staff provided by the utility model;

[0020] Figure 2 It is a sectional view of the connecting part of the upper segment and the lower segment shown in the figure; Figure 1

[0021] Figure 3 It is a top view and front view comparison schematic view of the upper gear shown in the figure; Figure 2

[0022] Figure 4 It is a top view and front view comparison schematic view of the lower gear shown in the figure; Figure 2

[0023] Figure 5 It is a top view and sectional view comparison schematic view of the lower segment shown in the figure; Figure 1 ​​​​

[0024] Figure 6 A structure diagram of a second embodiment of the novel spiral locking type staff gauge provided by the utility model is shown in the figure.

[0025] Figure 7 For Figure 6 The enlarged schematic view of A shown in the figure.

[0026] Reference numerals in the figure: 1, upper segment, 2, lower segment, 3, spiral locking structure, 4, connecting rod, 5, upper gear, 6, lower gear, 7, rib, 8, groove, 9, guide groove, 10, iron plate, 11, guide rod, 12, enlarging device, 13, moving part, 131, sliding block, 132, magnetic block, 133, extension plate, 134, connecting plate. DETAILED DESCRIPTION

[0027] The utility model will be further described below in combination with the drawings and embodiments.

[0028] First embodiment

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 And Figure 5 Among them, Figure 1 A structure diagram of a first embodiment of the novel spiral locking type staff gauge provided by the utility model is shown in the figure. Figure 2 For Figure 1 The cross-sectional view of the connecting part of the upper segment and the lower segment shown in the figure. Figure 3 For Figure 2 The top view and front view comparison schematic diagram of the upper gear shown in the figure. Figure 4 For Figure 2 The top view and front view comparison schematic diagram of the lower gear shown in the figure. Figure 5 For Figure 1 The top view and cross-sectional view comparison schematic diagram of the lower segment shown in the figure. A novel spiral locking type staff gauge, comprising: upper segment 1 and lower segment 2.

[0030] The upper segment 1 and the lower segment 2 are connected through the spiral locking device 3, and the upper segment 1 and the lower segment 2 are both cylindrical.

[0031] The spiral locking device 3 comprises a connecting rod 4, an upper gear 5 and a lower gear 6, which are connected as a whole through the connecting rod 4 and the upper segment 1, the inner side of the lower segment 2 is provided with a rib 7, and the surfaces of the upper gear 5 and the lower gear 6 are both provided with a groove 8.

[0032] The upper gear 5 is provided with a hole in the center, the connecting rod 4 passes through the hole to place the upper gear 5 above the lower gear 6, and the upper gear 5 is not connected with the connecting rod 4, so that the upper gear 5 can move up and down along the connecting rod 4 and rotate freely around the connecting rod 4.

[0033] The groove 8 is matched with the size of the rib 7, and the rib 7 penetrates the lower segment 2.

[0034] The working principle of the novel spiral locking type tower ruler is as follows:

[0035] In the working process, first, the upper segment 1 is pulled out upward, at this time, the lower gear 6 is connected with the upper segment 1 through the connecting rod 4, and the lower gear 6 moves upward synchronously, the upper gear 5 moves upward under the pushing of the lower gear 6, at this time, the groove 8 on the upper gear 5 is embedded with the rib 7 on the inner side of the lower segment 2, and the upper gear 5, the lower gear 6 and the upper segment 1 do not rotate relatively.

[0036] When the upper gear 5 continuously moves upward to a certain height, the groove 8 on the upper gear 5 is separated from the rib 7 on the lower segment 2, at this time, the upper gear 5 is no longer restricted by the rib and slides downward under the action of gravity and rotates under the action of the lower gear 6 until the upper gear 5 is embedded with the lower gear 6, the upper segment 1 is loosened, the lower gear 6 moves downward and is separated from the upper gear 5, the upper gear 5 moves downward and rotates under the action of the rib until the rib is clamped with the gear, at this time, the upper gear 5 is clamped and fixed, the upper segment 1 is placed on the upper gear 5, and the fixing of the upper segment is completed.

[0037] The upper segment 1 is pulled out upward again, at this time, the lower gear 6 moves synchronously with the upper segment 1, the lower gear 6 contacts the upper gear 5 to move upward, the upper gear 5 is separated from the rib 7 and rotates under the action of the lower gear 6, the upper segment 1 is inserted downward, the lower gear 6 moves downward synchronously, at this time, the upper gear 5 moves downward and rotates along the direction of the gear under the action of the rib 7, when the upper gear 5 rotates to the position of the groove 8, the rib 7 is embedded with the groove 8, the upper gear 5 stops rotating and moves downward along the direction of the rib 7 until the upper segment 1 is completely inserted into the lower segment 2, and the tower ruler is retracted.

[0038] Compared with the related art, the novel spiral locking type tower ruler has the following advantages

[0039] Beneficial effects:

[0040] The utility model provides a novel spiral locking type tower ruler, through the cooperation of upper section 1, lower section 2, spiral locking device 3, connecting rod 4, upper gear 5, lower gear 6, rib 7 and recess 8, spiral locking device 3 sets up in the tower ruler inside, through upper gear 5, lower gear 6, connecting rod 4, recess 8, rib 7 combination completes the opening and closing of tower ruler, to realize not in the scale face opening, can avoid in the scale face opening, realize reliable durable purpose, spiral locking type tower ruler simple structure, design novel and reasonable, easy to install, low cost.

[0041] Second embodiment

[0042] Please refer to Figure 6 And Figure 7 Based on the first embodiment of the application provides a novel spiral locking type tower ruler, the second embodiment of the application proposes another novel spiral locking type tower ruler. Second embodiment is only the preferred mode of first embodiment, the implementation of second embodiment will not cause the influence of the single implementation of first embodiment.

[0043] Specifically, the second embodiment of the application provides a novel spiral locking type tower ruler, which is different from the first embodiment. The upper section 1 and the lower section 2 are provided with guide grooves 9 on both sides of the outer surface, the guide grooves 9 are fixedly installed with guide rods 11 inside, the surface of the inner cavity wall of the guide grooves 9 is fixedly installed with iron plates 10, the outer surface of the guide rods 11 is slidably installed with moving parts 13, one side of the moving parts 13 is provided with magnifying devices 12, and the moving parts 13 are used to adjust the height of the magnifying devices 12.

[0044] The moving part 13 includes a sliding block 131, a magnetic block 132, an extension plate 133 and a connecting plate 134, the sliding block 131 is slidably installed on the outer surface of the guide rod 11, the magnetic block 132 is fixedly installed on one side of the outer surface of the sliding block 131, the extension plate 133 is fixedly connected to the other side of the outer surface of the magnetic block 132, and the connecting plate 134 is fixedly connected to one side of the surface of the extension plate 133.

[0045] The sliding block 131 is matched with the guide groove 9.

[0046] The magnifying device 12 adopts a magnifying glass structure.

[0047] The extension plate 133 is slidably installed on the outer surface of the section.

[0048] The working principle of the novel spiral locking type tower ruler provided by the utility model is as follows:

[0049] In working, first, the user pushes the moving part 13 according to the measuring position, the slider 131 slides on the surface of the guide rod 11, the moving part 13 drives the amplification device 12 to slide on the segment surface and adjust the height, and the magnetic block 132 can be adsorbed on the surface of the iron plate 10 at any height through the magnetic attraction effect.

[0050] Compared with the related art, the novel spiral locking type staff provided by the utility model has the following advantages

[0051] Beneficial effects:

[0052] The novel spiral locking type staff is simple in structure, high in practicability, and convenient to use and practical, the moving part 13 and the amplification device 12 do not affect the extension of the staff, the staff height can be adjusted, the staff scale value can be amplified, the staff value can be directly observed by the recording personnel, the staff value can be conveniently observed during measurement, and the convenience and practicability of the device are improved.

[0053] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the utility model specification and the attached drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A new type of spiral locking tower scale characterized in that, Include: Upper segment and lower segment, The upper segment and the lower segment are connected by a screw locking device, and the upper segment and the lower segment are both cylindrical bodies; The screw locking device includes a connecting rod, an upper gear and a lower gear, the connecting rod is connected with the upper segment as a whole, the inner side of the lower segment is provided with a rib, and the surfaces of the upper gear and the lower gear are provided with grooves.

2. A new type of spiral locking tower scale according to claim 1, characterized in that, The center of the upper gear is a hole, the connecting rod passes through the hole so that the upper gear is placed above the lower gear, and the upper gear is not connected with the connecting rod, so that the upper gear can move up and down along the connecting rod and can rotate freely around the connecting rod.

3. A new type of spiral locking tower scale according to claim 1, characterized in that, The size of the groove is matched with the rib, and the rib penetrates through the lower segment.

4. A new type of spiral locking tower scale according to claim 1, characterized in that, Both sides of the outer surfaces of the upper segment and the lower segment are provided with guide grooves, guide rods are fixedly installed in the guide grooves, iron plates are fixedly installed on the surfaces of the inner cavities of the guide grooves, moving parts are slidingly installed on the outer surfaces of the guide rods, and magnifying devices are arranged on one side of the moving parts.

5. A new type of spiral locking tower scale according to claim 4, characterized in that, The moving part includes a sliding block, a magnetic block, an extension plate and a connecting plate, the sliding block is slidingly installed on the outer surface of the guide rod, the magnetic block is fixedly installed on one side of the outer surface of the sliding block, the extension plate is fixedly connected to the other side of the outer surface of the magnetic block, and the connecting plate is fixedly connected to one side of the surface of the extension plate.

6. A new type of spiral locking tower scale according to claim 5, characterized in that, The sliding block is matched with the guide groove.

7. A new type of spiral locking tower scale as claimed in claim 5, wherein, The magnifying device adopts a magnifying glass structure.

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