Installation measuring device for trackside transponder

Abstract

The utility model relates to an installation and measurement device for a trackside transponder, and the device comprises a transverse measurement support which is provided with a transverse opening in the length direction of the transverse measurement support, two sides of the interior of the transverse measurement support are respectively provided with grooves, two ends of the transverse measurement support are respectively provided with protrusions, and the front surface of the transverse measurement support is provided with engraved transverse measurement scale marks. The surface is provided with engraved vertical measurement scale marks; the sliding roller comprises a hollow cylinder and two wheels at the two ends, and the rollers are clamped in the grooves respectively; the bracket connecting rod penetrates through the interior of the sliding roller and is coaxial with the sliding roller; the rotatable bearing block is arranged in the middle of the sliding roller and is hollow, the vertical measuring support penetrates through the rotatable bearing block, and the hollow cylinder penetrates through a vertical opening of the vertical measuring support. Rhombic convex teeth are arranged on the outer surface of the middle of the support connecting rod, hexagonal grooves with the same number are formed in the inner wall of the hollow cylinder, and the rhombic convex teeth are clamped in the hexagonal grooves. The first operation button and the second operation button are arranged in the first through hole and the second through hole respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, and more specifically, to an installation and measurement device for a trackside transponder. Background Art

[0002] To meet the demands of rail transit signaling systems, wayside balises are transmission devices that send messages to onboard subsystems. These devices can transmit fixed information or, when connected to wayside units, variable information. They are an integral component of the overall signaling system's safety architecture. They primarily utilize wireless induction principles to enable communication between trains and the ground at specific locations. Antennas on the wayside balises and onboard balises communicate with each other, transmitting relevant train information and ensuring safe train operation. Therefore, during the initial installation and commissioning process, ensuring that the balises meet relevant technical requirements is crucial to ensuring safe train operation. Balises from different manufacturers have different installation specifications. After installation, installers are required to inspect the balises and record the corresponding position parameters to ensure they meet the specifications. Operators are also required to inspect and record the balise parameters during routine maintenance to ensure they meet the specifications. Whether installing the balises, or performing routine maintenance and inspections, unprofessional and inconvenient tools can lead to inaccurate measurements and inaccurate device placement. Utility Model Content

[0003] The following is a brief overview of the present invention to provide a basic understanding of certain aspects of the present invention. It should be understood that this overview is not an exhaustive overview of the present invention. It is not intended to identify key or important aspects of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is simply to present certain concepts in a simplified form as a prelude to the more detailed description discussed later.

[0004] In view of this, an installation and measurement device for trackside transponders is provided to facilitate on-site measurement of the installation of trackside transponders, solve the installation technology requirements of transponders from different manufacturers for installation locations and different working conditions, and facilitate daily maintenance and measurement by maintenance personnel and on-site installation and measurement by installers.

[0005] According to one aspect of the present disclosure, there is provided an installation and measurement device for a trackside transponder, the installation and measurement device comprising:

[0006] A transverse measuring bracket, wherein the transverse measuring bracket has a transverse opening along its length direction, a groove is provided on each side of the transverse opening along the length direction of the transverse measuring bracket, and a protrusion is provided at each end of the transverse measuring bracket for clamping the transverse measuring bracket on the two rails of the track, and the front surface of the transverse measuring bracket has engraved transverse measurement scale lines.

[0007] A vertical measurement bracket, wherein the vertical measurement bracket has a vertical opening along the length direction of the vertical measurement bracket, one end of the vertical measurement bracket is a pointed tip, and the surface of the vertical measurement bracket has engraved vertical measurement scale lines;

[0008] A sliding roller, comprising a hollow cylinder in the middle and two rollers located at both ends of the cylinder, the two rollers being respectively clamped in two grooves inside the transverse measurement bracket and capable of rolling in the grooves;

[0009] a bracket connecting rod, the bracket connecting rod passing through the interior of the sliding roller and being coaxial with the sliding roller;

[0010] A rotatable bearing block is provided in the middle of the sliding roller, the rotatable bearing block is hollow, the vertical measurement bracket passes through the rotatable bearing block, and the cylinder in the middle of the sliding roller passes through the vertical opening of the vertical measurement bracket, the hollow shape of the rotatable bearing block is adapted to the cross-sectional shape of the vertical measurement bracket, so that the vertical measurement bracket can move up and down perpendicular to the horizontal measurement bracket along the length direction of its vertical opening;

[0011] The outer surface of the middle portion of the bracket connecting rod has a circle of diamond-shaped convex teeth, and the inner wall of the hollow cylinder of the sliding roller has hexagonal grooves with the same number as the diamond-shaped convex teeth. The diamond-shaped convex teeth are stuck in the hexagonal grooves and can move in the hexagonal grooves along the axial direction of the bracket connecting rod; and

[0012] The first operation button and the second operation button, the center of the front surface and the center of the rear surface of the horizontal measurement bracket are respectively provided with a first through hole and a second through hole from the surface to the internal groove, the first operation button and the second operation button are respectively arranged in the first through hole and the second through hole, and the use state and the non-use state of the installed measurement device are switched by pressing the first operation button and the second operation button.

[0013] Optionally, in an example of the above aspect, the surfaces of the first operating button and the second operating button respectively have a circle of multiple fixed splines, and the first through hole and the second through hole of the transverse measuring bracket have the same number of spline grooves inside, and the fixed splines are stuck in the spline grooves and can move in the spline grooves and respectively.

[0014] Optionally, in an example of the above aspect, when the first operating button is pressed into the first through hole, the bracket connecting rod is located in the middle of the sliding roller, the diamond-shaped protruding teeth engage with the hexagonal grooves, the rotatable bearing block cannot rotate, and the horizontal measurement bracket and the vertical measurement bracket are vertically distributed in a "cross" structure;

[0015] When the second operating button is pressed into the second through hole, the front end of the second operating button is pushed into the sliding roller, pushing the bracket connecting rod so that the diamond-shaped convex teeth are located in the middle of the hexagonal groove, without restricting the rotation of the rotatable bearing block. By rotating the rotatable bearing block, the vertical measuring bracket is hidden in the horizontal opening inside the horizontal measuring bracket, and the horizontal measuring bracket and the vertical measuring bracket are in an "I"-shaped structure.

[0016] Optionally, in an example of the above aspect, the horizontal measuring bracket, vertical measuring bracket, bracket connecting rod, and rotatable bearing block are made of aluminum alloy profiles, the sliding roller is made of ABS wear-resistant plastic, and the first operation button and the second operation button are made of polyvinyl chloride plastic.

[0017] Optionally, in an example of the above aspect, the horizontal measurement scale lines and the vertical measurement scale lines are engraved on the surfaces of the horizontal measurement bracket and the vertical measurement bracket by laser engraving.

[0018] According to the embodiment of the utility model, the installation measuring device has the function of detecting whether the installation position of the trackside transponder meets the technical standards. It can measure the height value of the trackside transponder after installation and the horizontal plane of the track, and can also measure whether the installation position of the trackside transponder is located in the center of the two rails.

[0019] According to the installation measurement device of the embodiment of the present invention, the height values of the four corners and the center position of the upper surface of the trackside transponder from the horizontal plane of the rail can be measured, and whether the installation position of the transponder is horizontal or tilted can be determined by comparing the height values measured at multiple locations.

[0020] According to the embodiment of the utility model, the installation measurement device is not restricted by trackside transponders of different manufacturers. Different manufacturers have different requirements for the location of installing transponders, but the installation location parameters of the transponder can be measured by this device to determine whether the on-site equipment meets the manufacturer's installation technical requirements.

[0021] The installation and measurement device according to the embodiment of the utility model is not restricted by the on-site environment and is applicable to on-site curved rails and tracks with slopes.

[0022] According to the installation measurement device of the embodiment of the present invention, the vertical measurement bracket can be hidden inside the horizontal measurement bracket by adjusting the operation button, which is convenient for users to carry.

[0023] The installation measurement device according to the present invention is simple to operate, flexible to control, and has a simple structure and is easy to use. It has a wide range of applications and few restrictions on rail and transponder types. It allows users to easily measure the position parameters of trackside transponders on-site and determine whether the transponder installation meets standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other purposes, features and advantages of the present invention will be more easily understood by referring to the following description of the embodiments of the present invention in conjunction with the accompanying drawings. The components in the accompanying drawings are only for illustrating the principles of the present invention. In the accompanying drawings, the same or similar technical features or components will be represented by the same or similar reference numerals. In the accompanying drawings:

[0025] Figure 1 Schematic diagram of a measurement device for mounting a trackside transponder according to an embodiment of the present disclosure.

[0026] Figure 2 is a front view of a mounting measurement device according to an embodiment of the present disclosure.

[0027] Figure 3 2 is a front view of the installation measuring device after it is hidden according to an embodiment of the present disclosure.

[0028] Figure 4 It is a structural diagram of the connection structure.

[0029] Figure 5 It is a structural diagram of the bracket connecting rod.

[0030] Figure 6 It is a cross-sectional diagram of the installed measuring device in working condition.

[0031] Figure 7 It is a cross-sectional diagram of the installed measuring device in a non-working state.

[0032] The accompanying drawings are numerals as follows:

[0033] DETAILED DESCRIPTION

[0034] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that the discussion of these embodiments is intended solely to enable those skilled in the art to better understand and implement the subject matter described herein and is not intended to limit the scope, applicability, or examples set forth in the claims. The functions and arrangements of the elements discussed may be varied without departing from the scope of this disclosure. Various examples may omit, substitute, or add various processes or components as needed.

[0035] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0036] As used herein, the term "including" and its variations are open terms meaning "including but not limited to". The term "based on" means "based at least in part on". The terms "one embodiment" and "an embodiment" mean "at least one embodiment". The term "another embodiment" means "at least one other embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other definitions may be included below, whether explicit or implicit. Unless the context clearly indicates otherwise, the definition of a term is consistent throughout the specification.

[0037] According to an embodiment of the present disclosure, a device for measuring and installing trackside transponders is provided. This device facilitates on-site measurement of trackside transponder installation, addresses the installation location and installation technology requirements of transponders from different manufacturers in different working environments, and facilitates routine maintenance and measurement by maintenance personnel, as well as on-site installation and measurement by installers. The device is simple to operate, flexible to control, and easy to use.

[0038] The structural principle and working principle of the installation and measurement device for trackside transponders according to an embodiment of the present disclosure are described below with reference to the accompanying drawings.

[0039] Figure 1 is a schematic diagram of a mounting measurement device 30 for a trackside transponder according to an embodiment of the present disclosure.

[0040] exist Figure 1 In the figure, two rails 100 of the track and a trackside transponder 200 installed in the middle of the track are also shown. It can be understood that neither the rails 100 nor the trackside transponder 200 limit the protection scope of the trackside transponder according to the embodiment of the present disclosure.

[0041] like Figure 1 As shown, the installation measurement device 30 includes a horizontal measurement bracket 301 and a vertical measurement bracket 302.

[0042] The transverse measuring bracket 301 has a transverse opening 3011 along its length direction, and the interior of the transverse opening 3011 has a groove 3012 on both sides along the length direction of the transverse measuring bracket 301 (see FIG. Figure 6), there is a protrusion 3013 at each end of the transverse measurement bracket 301, which is used to clamp the transverse measurement bracket 301 on the two rails 100 of the track, and the front surface of the transverse measurement bracket 301 has an engraved transverse measurement scale line 303.

[0043] The vertical measurement bracket 302 has a vertical opening 3021 along the length direction of the vertical measurement bracket. One end of the vertical measurement bracket 302 is a tip 3022 . The surface of the vertical measurement bracket 302 has engraved vertical measurement scale lines 304 .

[0044] Figure 4 It is an enlarged structural diagram of a connection structure for connecting the horizontal measurement bracket 301 and the vertical measurement bracket 302 together.

[0045] like Figure 4 As shown, the connection structure includes: a sliding roller 308 , a bracket connecting rod 305 and a rotatable bearing block 309 .

[0046] The sliding roller 308 includes a hollow cylinder 3081 in the middle and two rollers 3082 respectively located at both ends of the cylinder 3081. The two rollers 3082 are respectively stuck in two grooves 3012 inside the horizontal measurement bracket 301 and can roll in the grooves 3012.

[0047] The support connecting rod 305 passes through the interior of the sliding roller 308 and is coaxial with the sliding roller 308 .

[0048] A rotatable bearing block 309 is disposed in the center of the sliding roller 308. The rotatable bearing block 309 is hollow, and the vertical measurement bracket 302 passes through the rotatable bearing block 309. The cylindrical body 3081 in the center of the sliding roller 308 passes through the vertical opening 3021 of the vertical measurement bracket, thereby connecting the vertical measurement bracket 302 and the transverse measurement bracket 301. It will be appreciated that the hollow shape of the rotatable bearing block 309 matches the cross-sectional shape of the vertical measurement bracket 302. The vertical measurement bracket 302 can move up and down perpendicularly to the transverse measurement bracket 301 along the length of its vertical opening 3021. Because the rotatable bearing block 309 limits the vertical measurement bracket 302, it does not deviate during movement.

[0049] Figure 5 It is a schematic diagram of the enlarged structure of the bracket connecting rod 305.

[0050] like Figure 5 As shown, the outer surface of the middle portion of the bracket connecting rod 305 has a circle of diamond-shaped protruding teeth 306.

[0051] Figure 6 The measuring device 30 is installed along Figure 1For the sake of clarity, Figure 6 The two ends of the transverse measurement bracket 301 are omitted.

[0052] from Figure 6 As can be seen in the figure, the inner wall of the hollow cylindrical body 3081 of the sliding roller 308 has hexagonal grooves 307, the number of which is the same as the number of diamond-shaped protruding teeth 306. The diamond-shaped protruding teeth 306 are stuck in the hexagonal grooves 307 and can move in the hexagonal grooves 307 along the axial direction of the bracket connecting rod 305.

[0053] It can be understood that in the present invention, there is no limitation on the number of diamond-shaped protruding teeth 306 and hexagonal grooves 307 , but the numbers of the two are the same.

[0054] The installation and measurement device 30 further includes a first operating button 310 and a second operating button 311. A first through hole 3014 and a second through hole 3015 are respectively formed at the center of the front surface of the lateral measurement bracket 301, extending from the surface to the inner groove, and at the center of the rear surface of the lateral measurement bracket 301, extending from the surface to the inner groove. The first operating button 310 and the second operating button 311 are respectively disposed in the first through hole 3014 and the second through hole 3015. Pressing the first operating button 310 and the second operating button 311 can switch the installation and measurement device 30 between an in-use state and an in-use state.

[0055] from Figure 6 As can be seen in the figure, the surfaces of the first operating button 310 and the second operating button 311 are respectively provided with a circle of multiple fixed splines 3101 and 3111. The first through hole 3014 and the second through hole 3015 of the transverse measurement bracket 301 are respectively provided with spline grooves 3102 and 3112, which are the same number as the fixed splines. The fixed splines 3101 and 3111 are respectively stuck in the spline grooves 3102 and 3112 and can move within the spline grooves 3102 and 3112. The spline grooves 3102 and 3112 limit the movement of the operating buttons 310 and 311.

[0056] The working process of the installation and measurement device 30 according to the embodiment of the present disclosure will be described below with reference to the accompanying drawings.

[0057] Figure 2 It is a front view of the installed measuring device 30 in the use state. Figure 3 It is a front view of the installed measuring device in a non-use state, with the vertical measuring bracket 302 hidden inside the horizontal measuring bracket 301.

[0058] like Figure 1As shown, during operation, the horizontal measuring bracket 301 on which the measuring device 30 is mounted is placed on the upper surface of the track, and the two protrusions 3013 are clamped on the two rails 100 of the track. The vertical measuring bracket 302 can move left and right, up and down.

[0059] Align the tip of the vertical measuring bracket 302 with the transponder X-mark 201 on the trackside transponder 200 installed in the middle of the track. Observe the vertical measurement scale line 304, which is perpendicular to the bottom edge of the horizontal measuring bracket 301 and the surface of the vertical measuring bracket 302. This value represents the distance from the trackside transponder 200 to the horizontal plane of the track. This value can be used to determine whether the installation height of the trackside transponder meets technical requirements.

[0060] By moving the sliding roller 308 within the groove 3012 of the transverse bracket 301, the vertical measurement bracket 302 can be moved horizontally perpendicular to the trackside transponder 200, aligning the tip of the vertical measurement bracket 302 with the edges of the trackside transponder 200. The values of the transverse measurement scale lines 303 on the surface of the transverse bracket 301 are then observed. By comparing the values measured at the two edges, it can be determined whether the transponder is installed in the center of the two rails.

[0061] By moving the vertical measuring bracket 302 left and right and the horizontal bracket 301 forward and backward, the values of the four corners of the surface of the trackside transponder 200 can be measured. By comparing the measured values, it can be determined whether the installation position of the trackside transponder 200 is horizontal or whether there is any tilt, which facilitates the later technical personnel to correct the installation position of the trackside transponder 200.

[0062] Figure 6 The figure is a cross-sectional diagram of the mounted measuring device 30 in use. To use the mounted measuring device for measurement, the first operating button 310 is pressed into the first through-hole 3014, positioning the bracket connecting rod 305 in the middle of the sliding roller 308. The diamond-shaped teeth 306 on the surface of the bracket connecting rod 305 engage with the hexagonal grooves 307 within the sliding roller 308, restricting the rotation of the rotatable bearing block 309. The vertical measuring bracket 302 can move horizontally within the lateral measuring bracket 301 via the sliding roller 308. Due to the restraining effect of the rotatable bearing block 309, the vertical measuring bracket 302 can only move vertically, up and down. In operation, the lateral measuring bracket 301 and the vertical measuring bracket 302 form a "cross" configuration.

[0063] After the measurement is completed, Figure 7As shown, the second operating button 311 is pressed into the second through hole 3015, and the front end 3113 of the second operating button 311 is pushed into the sliding roller 308, pushing the bracket connecting rod 305. The diamond-shaped convex teeth 306 on the surface of the bracket connecting rod 305 are located in the middle of the hexagonal groove 307 inside the sliding roller 308, and no longer restrict the rotation of the rotatable bearing block 309. The vertical measuring bracket 302 can rotate together in the rotatable bearing block 309 and be hidden in the horizontal opening inside the horizontal measuring bracket 301. The installed measuring device after being hidden has an "I"-shaped structure, as shown in FIG. Figure 3 shown.

[0064] Preferably, the horizontal measurement bracket 301, the vertical measurement bracket 302, the bracket connecting rod 305, and the rotatable bearing block 309 are made of aluminum alloy profiles, the sliding roller 308 is made of ABS wear-resistant plastic, and the operating button 310 is made of polyvinyl chloride plastic.

[0065] Preferably, the horizontal measurement scale lines 303 and the vertical measurement scale lines 304 are engraved on the surfaces of the horizontal measurement bracket 301 and the vertical measurement bracket 302 by laser engraving.

[0066] Optionally, the transverse measurement bracket may adopt a retractable structure to adapt to tracks of different widths, which will not be described in detail here.

[0067] According to the embodiment of the utility model, the installation measuring device has the function of detecting whether the installation position of the trackside transponder meets the technical standards. It can measure the height value of the trackside transponder after installation and the horizontal plane of the track, and can also measure whether the installation position of the trackside transponder is located in the center of the two rails.

[0068] According to the installation measurement device of the embodiment of the present invention, the height values of the four corners and the center position of the upper surface of the trackside transponder from the horizontal plane of the rail can be measured, and whether the installation position of the transponder is horizontal or tilted can be determined by comparing the height values measured at multiple locations.

[0069] According to the embodiment of the utility model, the installation measurement device is not restricted by trackside transponders of different manufacturers. Different manufacturers have different requirements for the location of installing transponders, but the installation location parameters of the transponder can be measured by this device to determine whether the on-site equipment meets the manufacturer's installation technical requirements.

[0070] The installation and measurement device according to the embodiment of the utility model is not restricted by the on-site environment and is applicable to on-site curved rails and tracks with slopes.

[0071] According to the installation measurement device of the embodiment of the present invention, the vertical measurement bracket can be hidden inside the horizontal measurement bracket by adjusting the operation button, which is convenient for users to carry.

[0072] The installation measurement device according to the present invention is simple to operate, flexible to control, and has a simple structure and is easy to use. It has a wide range of applications and few restrictions on rail and transponder types. It allows users to easily measure the position parameters of trackside transponders on-site and determine whether the transponder installation meets standards.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0074] Not all units in the above structural diagrams are required, and some units may be omitted according to actual needs. The device structures described in the above embodiments may be physical structures or logical structures, that is, some units may be implemented by the same physical entity, or some units may be implemented by multiple physical entities, or may be implemented by certain components in multiple independent devices.

[0075] The foregoing description of the present disclosure is provided to enable any person skilled in the art to implement or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but is intended to be consistent with the widest range of principles and novel features disclosed herein.

[0076] Nouns and pronouns referring to persons in this patent application are not limited to a specific gender.

Claims

1. A measuring device (30) for mounting a trackside transponder, characterized in that: The installation and measurement device (30) comprises: A transverse measuring bracket (301), the transverse measuring bracket (301) having a transverse opening (3011) along its length direction, the transverse opening (3011) having a groove (3012) on both sides along the length direction of the transverse measuring bracket (301), a protrusion (3013) at each end of the transverse measuring bracket (301), for clamping the transverse measuring bracket (301) on two rails of a track, and a transverse measuring scale line (303) engraved on the front surface of the transverse measuring bracket (301); A vertical measurement bracket (302), the vertical measurement bracket (302) having a vertical opening (3021) along the length direction of the vertical measurement bracket (302), one end of the vertical measurement bracket (302) being a tip (3022), and a surface of the vertical measurement bracket (302) having engraved vertical measurement scale lines (304); A sliding roller (308), the sliding roller (308) comprising a hollow cylinder (3081) in the middle and two rollers (3082) located at both ends of the hollow cylinder (3081), the two rollers (3082) being respectively stuck in two grooves (3012) inside the transverse measurement bracket (301) and capable of rolling in the grooves (3012); a support connecting rod (305), the support connecting rod (305) passing through the interior of the sliding roller (308) and being coaxial with the sliding roller (308); A rotatable bearing block (309) is arranged in the middle of the sliding roller (308), the rotatable bearing block (309) is hollow, the vertical measurement bracket (302) passes through the rotatable bearing block (309), and the hollow cylinder (3081) in the middle of the sliding roller (308) passes through the vertical opening (3021) of the vertical measurement bracket, the hollow shape of the rotatable bearing block (309) is adapted to the cross-sectional shape of the vertical measurement bracket (302), so that the vertical measurement bracket (302) can move up and down perpendicular to the horizontal measurement bracket (301) along the length direction of its vertical opening (3021); The outer surface of the middle portion of the support connecting rod (305) is provided with a circle of diamond-shaped convex teeth (306); the inner wall of the hollow cylindrical body (3081) of the sliding roller (308) is provided with hexagonal grooves (307) having the same number as the diamond-shaped convex teeth (306); the diamond-shaped convex teeth (306) are stuck in the hexagonal grooves (307) and can move in the hexagonal grooves (307) along the axial direction of the support connecting rod (305); and A first operating button (310) and a second operating button (311), the center of the front surface and the center of the rear surface of the lateral measurement bracket (301) are provided with a first through hole (3014) and a second through hole (3015) from the surface to the internal groove, respectively, the first operating button (310) and the second operating button (311) are respectively arranged in the first through hole (3014) and the second through hole (3015), and the use state and the non-use state of the installation measurement device (30) are switched by pressing the first operating button (310) and the second operating button (311).

2. The installation measurement device (30) according to claim 1, characterized in that The surfaces of the first operating button (310) and the second operating button (311) are respectively provided with a circle of multiple fixed splines (3101, 3111); the first through hole (3014) and the second through hole (3015) of the transverse measurement bracket (301) are internally provided with the same number of spline grooves (3102, 3112); the fixed splines (3101, 3111) are stuck in the spline grooves (3102, 3112) and are respectively movable in the spline grooves (3102, 3112).

3. The installation measurement device (30) according to claim 1 or 2, characterized in that When the first operating button (310) is pressed into the first through hole (3014), the bracket connecting rod (305) is located in the middle of the sliding roller (308), the diamond-shaped convex teeth (306) are engaged with the hexagonal grooves (307), the rotatable bearing block (309) cannot rotate, and the horizontal measurement bracket (301) and the vertical measurement bracket (302) are vertically distributed in a "cross" structure; When the second operating button (311) is pressed into the second through hole (3015), the front end (3113) of the second operating button (311) pushes into the interior of the sliding roller (308), pushing the bracket connecting rod (305) so that the diamond-shaped convex teeth (306) are located in the middle of the hexagonal groove (307), without restricting the rotation of the rotatable bearing block (309). By rotating the rotatable bearing block (309), the vertical measurement bracket (302) is hidden in the horizontal opening (3011) inside the horizontal measurement bracket (301), and the horizontal measurement bracket (301) and the vertical measurement bracket (302) are in an "I"-shaped structure.

4. The installation measurement device (30) according to claim 1 or 2, characterized in that The horizontal measurement bracket (301), the vertical measurement bracket (302), the bracket connecting rod (305), and the rotatable bearing block (309) are made of aluminum alloy profiles, the sliding roller (308) is made of ABS wear-resistant plastic, and the first operation button (310) and the second operation button (311) are made of polyvinyl chloride plastic.

5. The installation measurement device (30) according to claim 1 or 2, characterized in that The horizontal measurement scale lines (303) and the vertical measurement scale lines (304) are engraved on the surfaces of the horizontal measurement bracket (301) and the vertical measurement bracket (302) by laser engraving.

6. The installation measurement device (30) according to claim 1 or 2, characterized in that The transverse measurement bracket (301) adopts a telescopic structure.

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