Leveling point protection device

Abstract

The invention discloses a benchmark protection device, and relates to the technical field of benchmark protection, the benchmark protection device comprises a shell assembly, the shell assembly comprises a protection shell, the lower end of the protection shell is provided with a protection shell gasket, the upper end of the protection shell is provided with a cover plate, and a cover plate gasket is arranged between the protection shell and the cover plate; the opening and closing assembly comprises a connecting plate, a first rotating rod, a second rotating rod, a spring, a clamping piece, a pressing piece and a limiting piece; the box staff fixing assembly comprises a benchmark, a ball bearing and a box staff rotating bin. The beneficial effects of the invention are that through the cooperation of the cover plate and the opening and closing assembly, the protection shell is closed and opened, under the action of the clamping piece, the cover plate is ensured to be closed tightly, and the cover plate is kept open stably without affecting the measurement under the action of the internal force of the opening and closing assembly during opening; the benchmark is protected through the protective shell, the benchmark is prevented from being corroded and damaged by rainwater, dust and the like, durability of the benchmark can be better guaranteed, the telemeter rod fixing assembly is matched, a telemeter rod can be better fixed during measurement, manpower is saved, and meanwhile the measurement accuracy can be improved.

Description

Technical Field

[0001] This invention relates to the field of leveling point protection technology, and in particular to a leveling point protection device. Background Technology

[0002] A benchmark is a point used for leveling and determining elevation. To meet the needs of engineering construction, surveying departments have established numerous benchmarks throughout the country. Benchmarks are generally divided into two main categories: permanent and temporary. National benchmarks are usually made as permanent points, constructed of stainless steel. However, over time, the effects of water flow and acidic conditions inevitably damage these benchmarks, affecting their accuracy during measurement. The results are related to various aspects of national infrastructure construction, scientific research and development, resource management, and national security. Currently, some power plants and other facilities use steel plates to protect benchmarks within their areas, but the sealing effect is poor, and the protection is not satisfactory.

[0003] During leveling, based on existing benchmarks, the area around the benchmarks is extended using leveling rods and equipment such as leveling instruments or total stations. This often requires multiple people to operate the equipment and hold the leveling rods to determine the location of the benchmarks. However, in slightly adverse environments, such as windy weather, the leveling rods are difficult to keep stable and vertical, which affects the measurement.

[0004] Therefore, there is currently a lack of a protective device for leveling points that has excellent sealing performance and is easy to open during use, as well as an auxiliary device for fixing the leveling rod during leveling.

[0005] In view of the above problems, a leveling point protection device is proposed to solve them. Summary of the Invention

[0006] In this section, as well as in the abstract and title of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract, and the title of this application, and such simplifications or omissions shall not be used to limit the scope of the invention.

[0007] In view of the above-mentioned problems in the prior art, the present invention is proposed.

[0008] The purpose of this invention is to provide a leveling point protection device, which is to provide a device that protects leveling points and is easy to open for auxiliary measurement during measurement.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a leveling point protection device, which includes a housing assembly, including a protective shell, a protective shell gasket at its lower end, a cover plate at its upper end, and a cover plate gasket between the protective shell and the cover plate;

[0010] The opening and closing assembly includes a connecting plate, a first rotating rod, a second rotating rod, a spring, a locking component, a pressing component, and a limiting component. The connecting plate is disposed at the lower end of the cover plate. One end of the first rotating rod, the second rotating rod, and the spring are connected to the connecting plate, and the other end is connected to the protective shell. The locking component, the pressing component, and the limiting component cooperate with each other.

[0011] As a preferred embodiment of the leveling point protection device of the present invention, the upper end of the protective shell is provided with an opening and closing groove, a locking groove, an observation hole, a clamping groove and a limiting groove. Two opening and closing grooves and two locking grooves are respectively arranged symmetrically on the left and right. The observation hole is located at the center of the upper end of the protective shell. The clamping groove and the limiting groove are located on the rear side of the locking groove.

[0012] In a preferred embodiment of the leveling point protection device of the present invention, the clamping member cooperates with the clamping groove, the pressing member cooperates with the pressing member groove, and the limiting member cooperates with the limiting member groove.

[0013] As a preferred embodiment of the leveling point protection device of the present invention, the cover plate is provided with a handle at the upper end, a locking groove at the front end, and a lifting block at the lower end. The locking element cooperates with the locking groove, and the front end of the locking groove also has a spring fixing groove. The lifting block cooperates with the clamping element.

[0014] As a preferred embodiment of the leveling point protection device of the present invention, the side wall of the opening and closing groove is provided with a first positioning post, a second positioning post and a spring positioning post, and the connecting plate is provided with a first connecting hole, a second connecting hole and a spring connecting post.

[0015] As a preferred embodiment of the leveling point protection device of the present invention, wherein: one end of the first rotating rod is provided with a first positioning hole and the other end is provided with a first connecting post, the first positioning hole and the first positioning post are rotatably engaged, and the first connecting post and the first connecting hole are rotatably engaged; one end of the second rotating rod is provided with a second positioning hole and the other end is provided with a second connecting post, the second positioning hole and the second positioning post are rotatably engaged, and the second connecting post and the second connecting hole are rotatably engaged.

[0016] As a preferred embodiment of the leveling point protection device of the present invention, the upper end of the clamp is a push block, the lower end of the push block is connected to a crossbar, the lower ends of the crossbar are connected to clamping legs, the lowest end of which is triangular inclined, the clamping legs cooperate with the clamping groove, and a clamping spring is also provided on the rear side of the clamp, the clamping spring cooperates with the spring fixing groove.

[0017] As a preferred embodiment of the leveling point protection device of the present invention, the clamping member includes a pressure block and a pressure block spring. The upper end of the pressure block spring is connected to the protective shell, and the lower end is connected to the pressure block. The upper half of the pressure block has the same shape as the lifting block.

[0018] As a preferred embodiment of the leveling point protection device of the present invention, the limiting member includes a limiting block, a limiting block spring and a ball bearing. One end of the limiting block spring is connected to the groove of the limiting member and the other end is connected to the limiting block. The ball bearing is disposed in the circular grooves on the top and bottom surfaces of the limiting block.

[0019] As a preferred embodiment of the leveling point protection device of the present invention, it further includes: a leveling rod fixing assembly, including a leveling point, a ball bearing and a leveling rod rotating chamber, wherein the leveling point is located on the ground directly below the protective shell, the ball bearing is disposed at the upper end of the protective shell, and the leveling rod rotating chamber is connected to the inner wall of the ball bearing.

[0020] As a preferred embodiment of the leveling point protection device of the present invention, the upper end of the leveling rod rotating chamber is a turntable, the lower end is a shell, and there is a leveling rod fixing groove running vertically through its center.

[0021] In a preferred embodiment of the leveling point protection device of the present invention, when the cover is to be opened in the closed state, its movement trend is to rotate counterclockwise around the first connecting hole. The clockwise bending moment provided by the second rotating rod is greater than the counterclockwise bending moment provided by the spring, which makes it difficult to open the cover under the action of the opening and closing assembly and makes it more tightly closed.

[0022] In a preferred embodiment of the leveling point protection device of the present invention, when the cover plate is to be closed in the open state, its movement trend is to rotate clockwise around the first connecting hole. At this time, the bending moment provided by the second rotating rod and the spring is a counterclockwise bending moment, which causes the cover plate to remain in the open state and not to close automatically.

[0023] The beneficial effects of this invention are as follows: the cover plate and the opening and closing assembly work together to achieve sealing and opening of the protective shell. Under the action of the locking mechanism, the cover plate can be tightly closed. In the open state, the internal force of the opening and closing assembly keeps it open and does not affect the measurement. The protective shell protects the leveling point from corrosion and damage by rainwater, dust and other factors, thus better ensuring its durability. Combined with the leveling rod fixing assembly, it is easier to fix the leveling rod during measurement, saving manpower and improving measurement accuracy. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0025] Figure 1 This is a schematic diagram of the overall leveling point protection device in this invention.

[0026] Figure 2 This is an exploded view of the leveling point protection device in this invention.

[0027] Figure 3 This is a plan view of the protective shell in this invention.

[0028] Figure 4 This is a cross-sectional view of the position of the leveling point opening and closing component in this invention.

[0029] Figure 5 In this invention Figure 4 A magnified view of part A in the image.

[0030] Figure 6 This is a force analysis diagram of the opening and closing component in the closed state in this invention.

[0031] Figure 7 This is a schematic diagram of the cover plate in the open state in this invention.

[0032] Figure 8 This is a cross-sectional view of the opening and closing component in the open state of the cover plate in this invention.

[0033] Figure 9 In this invention Figure 8 A magnified view of part B in the image.

[0034] Figure 10 This is a force analysis diagram of the opening and closing component in the open state in this invention.

[0035] Figure 11 This is a schematic diagram of the clamping mechanism in this invention.

[0036] Figure 12 This is a schematic diagram of the clamping explosion in the present invention.

[0037] Figure 13 This is a schematic diagram of the clamping component in this invention. Detailed Implementation

[0038] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0041] Example 1

[0042] Reference Figures 1 to 13 This is the first embodiment of the present invention, which provides a leveling point protection device, including a housing assembly 100, including a protective shell 101, a protective shell gasket 102 at its lower end, a cover plate 103 at its upper end, and a cover plate gasket 104 between the protective shell 101 and the cover plate 103; and an opening and closing assembly 200, including a connecting plate 201, a first rotating rod 202, a second rotating rod 203, a spring 204, a locking member 205, a pressing member 206, and a limiting member 207. The connecting plate 201 is disposed at the lower end of the cover plate 103. One end of the first rotating rod 202, the second rotating rod 203, and the spring 204 are connected to the connecting plate 201, and the other end is connected to the protective shell 101. The locking member 205, the pressing member 206, and the limiting member 207 cooperate with each other.

[0043] Furthermore, the upper end of the protective shell 101 is provided with an opening and closing groove 101a, a slot 101b and an observation hole 101c. Two opening and closing grooves 101a and two slots 101b are respectively arranged symmetrically on the left and right, and the observation hole 101c is located at the center of the upper end of the protective shell 101.

[0044] Furthermore, the upper end of the protective shell 101 is provided with an opening and closing groove 101a, a locking groove 101b, an observation hole 101c, a clamping groove 101d, and a limiting groove 101e. Two opening and closing grooves 101a and two locking grooves 101b are respectively arranged symmetrically on the left and right. The observation hole 101c is located at the center of the upper end of the protective shell 101. The clamping groove 101d and the limiting groove 101e are located on the rear side of the locking groove 101b.

[0045] Furthermore, the card 205 mates with the card slot 101b, the clamping member 206 mates with the clamping member slot 101d, and the limiting member 207 mates with the limiting member slot 101e.

[0046] Furthermore, the upper end of the cover plate 103 is provided with a handle 103a, the front end is provided with a locking groove 103b, and the lower end is provided with a lifting block 103c. The locking piece 205 cooperates with the locking groove 103b. The front end of the locking groove 103b is also provided with a spring fixing groove 103d. The lifting block 103c cooperates with the clamping piece 206.

[0047] Furthermore, the side wall of the opening and closing groove 101a is provided with a first positioning post 101a-1, a second positioning post 101a-2 and a spring positioning post 101a-3, and the connecting plate 201 is provided with a first connecting hole 201a, a second connecting hole 201b and a spring connecting post 201c.

[0048] Furthermore, the first rotating rod 202 has a first positioning hole 202a at one end and a first connecting post 202b at the other end. The first positioning hole 202a is rotatably engaged with the first positioning post 101a-1, and the first connecting post 202b is rotatably engaged with the first connecting hole 201a. The second rotating rod 203 has a second positioning hole 203a at one end and a second connecting post 203b at the other end. The second positioning hole 203a is rotatably engaged with the second positioning post 101a-2, and the second connecting post 203b is rotatably engaged with the second connecting hole 201b.

[0049] Furthermore, the upper end of the clip 205 is a push block 205a, the lower end of the push block 205a is connected to a crossbar 205b, the lower ends of the crossbar 205b are connected to clip legs 205c, the lowest end of which is triangular and inclined. The clip legs 205c cooperate with the clip groove 101b. A clip spring 205d is also provided on the rear side of the clip 205, and the clip spring 205d cooperates with the spring fixing groove 103d.

[0050] Furthermore, the clamping member 206 includes a pressure block 206a and a pressure block spring 206b. The upper end of the pressure block spring 206b is connected to the protective shell 101, and the lower end is connected to the pressure block 206a. The upper half of the pressure block 206a has the same shape as the lifting block 103c.

[0051] Furthermore, the limiting member 207 includes a limiting block 207a, a limiting block spring 207b, and a ball 207c. One end of the limiting block spring 207b is connected to the limiting member groove 101e, and the other end is connected to the limiting block 207a. The ball 207c is disposed in the circular grooves on the top and bottom surfaces of the limiting block 207a.

[0052] Furthermore, when the protective device is in the closed state, the locking leg 205c cooperates with the locking groove 101b to firmly connect the cover plate 103 with the protective shell 101. If the cover plate 103 is to be opened, its movement trend R is to rotate counterclockwise around the first connecting hole 201a. In this state, the entire opening and closing assembly has three forces: the thrust F1 of the first rotating rod 202, the thrust F2 of the second rotating rod 203, and the tension F3 of the spring 204. Since the thrust F2 and the tension F3 are in opposite directions, the thrust F1 is zero and the thrust F2 and the tension F3 are equal in magnitude. For the first connecting hole 201a, the thrust F1 does not bring bending moment, the thrust F2 brings clockwise bending moment M2, and the tension F3 brings counterclockwise bending moment M3. Thanks to the large straight-line distance between the thrust F2 and the first connecting hole 201a, the clockwise bending moment M2 is greater than the counterclockwise bending moment M3, which causes the cover plate 103 to remain in the closed state and be able to close tightly.

[0053] It should be noted that in this state, the clamping part 206 cooperates with the locking part 205 and provides a downward force, making the cover plate 103 close more tightly.

[0054] Furthermore, when the protective device is in the open state, if the cover plate 103 is to be closed, its movement tendency R is to rotate clockwise around the first connecting hole 201a. In this state, the entire opening and closing assembly has three forces: the thrust F1 of the first rotating rod 202, the thrust F2 of the second rotating rod 203, and the tension F3 of the spring 204. For the first connecting hole 201a, the thrust F1 does not bring bending moment, the thrust F2 brings counterclockwise bending moment M2, and the tension F3 brings counterclockwise bending moment M3, so that the cover plate 103 is stably kept in the open state and has a certain ability to resist external forces.

[0055] It should be noted that in this state, the limiting member 207 cooperates with the pressing member 206 to restrict the release of its downward elastic force.

[0056] In use, to open the cover 103, push the push block 205a to press the locking spring 205d. Under the action of the crossbar 205b, the locking leg 205c disengages from the clamping member 206. At the same time, an upward pulling force F is applied to the cover 103 by the handle 103a. 拉 The tension simultaneously applies a counterclockwise bending moment M to the first connecting hole 201a. 拉 Under this bending moment, the cover plate 103 can be opened smoothly. During the opening process, the lifting block 103c drives the clamping member 206 to rise, accumulating elastic force for it. At the same time, the limiting member 207 extends below the clamping member 206 to restrict the release of elastic force. To close the cover plate 103, a rightward pushing force F is applied to the cover plate 103 by the handle 103a. 推 The thrust simultaneously applies a clockwise bending moment M to the first connecting hole 201a. 推Under this bending moment, the cover plate 103 can close smoothly. After the locking leg 205c and the locking piece 205 contact the limiting piece 207, a horizontal thrust is applied to it, causing it to retract into the limiting piece groove 101e under the action of the ball 207c, thus contacting the restriction on the clamping piece 206. This allows the clamping piece 206 to provide a downward pressure to the locking piece 205, and the cover plate 103 is tightly closed.

[0057] In summary, the cover plate and the opening and closing assembly work together to achieve sealing and opening of the protective shell. Under the action of the locking mechanism, the cover plate can be tightly closed, and when opened, the internal force of the opening and closing assembly keeps it open and stable without affecting the measurement.

[0058] Example 2

[0059] Reference Figures 1-3 This is the second embodiment of the present invention. Based on the previous embodiment, this embodiment provides a leveling point protection device. It includes a leveling rod fixing assembly 300, which includes a leveling point 301, a ball bearing 302, and a leveling rod rotating chamber 303. The leveling point 301 is located on the ground directly below the protective shell 101. The ball bearing 302 is disposed on the upper end of the protective shell 101, and the leveling rod rotating chamber 303 is connected to the inner wall of the ball bearing 302.

[0060] Furthermore, the upper end of the rotating chamber 303 is a turntable 303a, the lower end is a shell 303b, and there is a vertically penetrating measuring rod fixing groove 303c at its center.

[0061] When in use, open the cover plate 103, put the leveling rod into the leveling rod fixing slot 303c, and adjust the direction of the leveling rod according to the position of the measuring point through the ball bearing, and then the measurement work can be carried out.

[0062] In summary, using the 303c leveling rod fixing slot to fix the leveling rod can better ensure its verticality, saving manpower while improving measurement accuracy.

[0063] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0064] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments may be omitted, i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention.

[0065] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A leveling point protection device, characterized in that: include, The housing assembly (100) includes a protective shell (101), a protective shell gasket (102) at its lower end, a cover plate (103) at its upper end, and a cover plate gasket (104) between the protective shell (101) and the cover plate (103); The opening and closing assembly (200) includes a connecting plate (201), a first rotating rod (202), a second rotating rod (203), a spring (204), a locking piece (205), a pressing piece (206), and a limiting piece (207). The connecting plate (201) is disposed at the lower end of the cover plate (103). One end of the first rotating rod (202), the second rotating rod (203), and the spring (204) are connected to the connecting plate (201), and the other end is connected to the protective shell (101). The locking piece (205), the pressing piece (206), and the limiting piece (207) cooperate with each other.

2. The leveling point protection device as described in claim 1, characterized in that: The upper end of the protective shell (101) is provided with an opening and closing groove (101a), a retaining groove (101b), an observation hole (101c), a clamping groove (101d), and a limiting groove (101e). Two opening and closing grooves (101a) and two retaining grooves (101b) are respectively arranged symmetrically on the left and right. The observation hole (101c) is located at the center of the upper end of the protective shell (101). The clamping groove (101d) and the limiting groove (101e) are located on the rear side of the retaining groove (101b). The card (205) engages with the card slot (101b), the clamping member (206) engages with the clamping member slot (101d), and the limiting member (207) engages with the limiting member slot (101e).

3. The leveling point protection device as described in claim 2, characterized in that: The cover plate (103) is provided with a handle (103a) at the upper end, a locking groove (103b) at the front end, and a lifting block (103c) at the lower end. The locking element (205) cooperates with the locking groove (103b). The front end of the locking groove (103b) also has a spring fixing groove (103d). The lifting block (103c) cooperates with the clamping element (206).

4. The leveling point protection device as described in claim 3, characterized in that: The side wall of the opening and closing groove (101a) is provided with a first positioning post (101a-1), a second positioning post (101a-2) and a spring positioning post (101a-3), and the connecting plate (201) is provided with a first connecting hole (201a), a second connecting hole (201b) and a spring connecting post (201c).

5. The leveling point protection device as described in claim 4, characterized in that: The first rotating rod (202) has a first positioning hole (202a) at one end and a first connecting post (202b) at the other end. The first positioning hole (202a) is rotatably engaged with the first positioning post (101a-1), and the first connecting post (202b) is rotatably engaged with the first connecting hole (201a). The second rotating rod (203) has a second positioning hole (203a) at one end and a second connecting post (203b) at the other end. The second positioning hole (203a) is rotatably engaged with the second positioning post (101a-2), and the second connecting post (203b) is rotatably engaged with the second connecting hole (201b).

6. The leveling point protection device as described in claim 5, characterized in that: The upper end of the clip (205) is a push block (205a), the lower end of the push block (205a) is connected to a crossbar (205b), the lower ends of the crossbar (205b) are connected to clip legs (205c), the lowest end of which is triangular and inclined. The clip legs (205c) cooperate with the clip groove (101b). The rear side of the clip (205) is also provided with a clip spring (205d), which cooperates with the spring fixing groove (103d).

7. The leveling point protection device as described in claim 6, characterized in that: The clamping component (206) includes a pressure block (206a) and a pressure block spring (206b). The upper end of the pressure block spring (206b) is connected to the protective shell (101), and the lower end is connected to the pressure block (206a). The upper half of the pressure block (206a) has the same shape as the lifting block (103c).

8. The leveling point protection device as described in claim 7, characterized in that: The limiting component (207) includes a limiting block (207a), a limiting block spring (207b), and a ball (207c). One end of the limiting block spring (207b) is connected to the limiting component groove (101e), and the other end is connected to the limiting block (207a). The ball (207c) is disposed in the circular grooves on the top and bottom surfaces of the limiting block (207a).

9. The leveling point protection device as described in claim 1 or 8, characterized in that: It also includes a leveling rod fixing assembly (300), which includes a leveling point (301), a ball bearing (302) and a leveling rod rotating chamber (303). The leveling point (301) is located on the ground directly below the protective shell (101). The ball bearing (302) is located at the upper end of the protective shell (101). The leveling rod rotating chamber (303) is connected to the inner wall of the ball bearing (302).

10. The leveling point protection device as described in claim 9, characterized in that: The upper end of the rotating chamber (303) of the measuring rod is a turntable (303a), the lower end is a shell (303b), and there is a measuring rod fixing groove (303c) that runs through the center.

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