Hand-push type distance measuring wheel for building construction

Abstract

The utility model provides a hand-push type distance measuring wheel for building construction, which relates to the technical field of measuring equipment and comprises a mounting pipe, a sliding sleeve is sleeved on the mounting pipe, a distance measuring wheel is rotatably mounted at the lower end of the mounting pipe, a support rod is arranged on one side of the distance measuring wheel, and a connecting rod is hinged between the mounting pipe and the support rod. A fixing sleeve and a limiting plate are further fixedly installed on the installation pipe, the sliding sleeve is connected with a first reset element, a locking assembly is arranged between the sliding sleeve and the fixing sleeve and comprises an arc-shaped locking rod, a second reset element is arranged between the arc-shaped locking rod and the inner wall of the fixing sleeve, and a limiting block is fixedly installed on the inner side of the arc-shaped locking rod. The side wall of the sliding sleeve is provided with a locking hole, and the upper end of the locking hole is provided with a limiting end face matched with the limiting block. According to the utility model, the supporting rod can be automatically opened, the time for detecting personnel to open the supporting rod is reduced, and the distance measuring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment, in particular to a hand-pushed distance measuring wheel for construction. Background Art

[0002] In the process of construction, a hand-pushed distance measuring wheel is often used to measure the distance on the ground. The traditional hand-pushed distance measuring wheel is composed of a mounting tube, a counter and a distance measuring wheel. In the process of distance measurement, it is necessary to stop the distance measurement when encountering obstacles or uneven ground. The existing hand-pushed distance measuring wheel will be hinged on the mounting tube. The support frame is used to support the distance measuring wheel to prevent the distance measuring wheel from falling. However, during use, the surveyor needs to hold the mounting tube with one hand to prevent the distance measuring wheel from tilting, and slowly squat down, and use the other hand to open the support frame hinged under the mounting tube. When it is not needed, the surveyor squats to put away the support frame. The existing hand-pushed distance measuring wheel does not realize the automatic opening of the support frame, and the surveyor needs to squat down to open it manually, which is troublesome to operate and affects the distance measurement efficiency.

[0003] Therefore, a construction hand-pushed distance measuring wheel is needed to solve the above problems. Utility Model Content

[0004] The utility model provides a hand-pushed distance measuring wheel for construction, which realizes the automatic expansion of a support rod, reduces the time for inspection personnel to expand the support rod, and improves the distance measuring efficiency.

[0005] The technical solution of the utility model is achieved in this way:

[0006] The hand-pushed distance measuring wheel for construction construction comprises a mounting tube, a sliding sleeve is sleeved on the mounting tube, a distance measuring wheel is rotatably mounted on the lower end of the mounting tube, a support rod is arranged on one side of the distance measuring wheel, the upper end of the support rod is hinged on the sliding sleeve, a connecting rod is hinged between the mounting tube and the support rod, a fixing sleeve and a limiting plate for limiting the sliding sleeve are also fixedly mounted on the mounting tube, the fixing sleeve is arranged above the sliding sleeve, the sliding sleeve is slidably mounted between the fixing sleeve and the limiting plate, the sliding sleeve is connected with a first reset element for pressing the sliding sleeve against the limiting plate, the outer diameter of the upper end of the sliding sleeve is smaller than the inner diameter of the fixing sleeve, and a locking assembly is arranged between the sliding sleeve and the fixing sleeve;

[0007] The locking assembly comprises a locking rod slidably mounted on the fixing sleeve along the radial direction of the fixing sleeve, the locking rod comprises an arc-shaped locking rod arranged in the fixing sleeve, a second reset element is arranged between the arc-shaped locking rod and the inner wall of the fixing sleeve, a limit block is fixedly mounted on the inner side of the arc-shaped locking rod, a locking hole is arranged on the side wall of the sliding sleeve, and a limit end face adapted to the limit block is arranged at the upper end of the locking hole;

[0008] It also includes a counting device installed on the installation tube for recording measurement data.

[0009] As a preferred technical solution, a guide rod is fixedly installed at both ends of the arc-shaped locking rod, two guide holes are arranged on the fixed sleeve, the free ends of the two guide rods respectively pass through the corresponding guide holes and are jointly fixedly installed with an arc-shaped push plate, and the two guide rods are respectively arranged on both sides of the sliding sleeve.

[0010] As a preferred technical solution, two avoidance grooves are symmetrically arranged on the mounting tube, and the two avoidance grooves are arranged along the axial direction of the mounting tube. A connecting plate is arranged in the mounting tube, and both ends of the connecting plate pass through the corresponding avoidance grooves and are fixedly installed on the sliding sleeve. A fixing plate is fixedly installed on the inner wall of the mounting tube, and the fixing plate is arranged above the sliding sleeve. The first reset element includes a first compression spring, and the first compression spring is arranged between the connecting plate and the fixing plate.

[0011] As a preferred technical solution, a guiding inclined surface inclined outward is arranged between the limiting end surface and the outer wall of the sliding sleeve.

[0012] As a preferred technical solution, an arc-shaped guide groove is provided on the inner wall of the fixing sleeve, and the second reset element includes a second compression spring, which is provided between the inner wall of the arc-shaped guide groove and the arc-shaped locking rod.

[0013] As a preferred technical solution, a triangular support frame is fixedly mounted on the lower end of the support rod.

[0014] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0015] The hand-pushed distance measuring wheel for construction construction includes: in the process of using the distance measuring wheel to measure the ground distance, when it is necessary to pause the distance measuring, the locking rod is pushed, the second compression spring is compressed, the limit block is separated from the limit end face, the sliding sleeve is separated from the limit of the fixed sleeve, and under the action of the first compression spring, the sliding sleeve is pressed against the limit plate. In the process of the sliding sleeve moving toward the limit plate, the upper end of the support rod moves downward, and the hinged position of the connecting rod and the support rod moves downward, that is, the connecting rod pushes the support rod in the direction away from the mounting tube, thereby realizing the expansion of the support rod. In addition, since the arc-shaped push plate is connected to the arc-shaped locking rod through two guide rods, it is only necessary to press the arc-shaped push plate to realize the synchronous automatic expansion of the support rod, and the distance measuring wheel is tilted in the direction close to the support rod. The support frame at the lower end of the support rod is pressed against the ground, and the triangular support frame and the bottom of the distance measuring wheel form a stable triangular position relationship, thereby playing the role of supporting the distance measuring wheel. Compared with the existing distance measuring device, the distance measuring wheel does not require the distance measuring personnel to squat and operate manually, which reduces the operation steps of the measurement personnel and improves the distance measuring efficiency.

[0016] When it is necessary to continue measuring, the operator moves the sliding sleeve in the direction close to the fixed sleeve. During the movement, the first compression spring is compressed, the upper end of the sliding sleeve extends into the fixed sleeve, and the guide inclined surface abuts on the limit block. As the sliding sleeve continues to move, the guide inclined surface pushes the arc locking rod to move in the direction away from the sliding sleeve, and the second compression spring is compressed. Further, the top of the limit block abuts against the limit end surface. At this time, under the action of the second compression spring, the locking rod is reset. At this time, the sliding sleeve cup fixed sleeve is locked. In the process of the sliding sleeve moving upward, the upper end of the support rod moves upward, and the support rod moves in the direction close to the mounting tube under the connection of the connecting rod, thereby realizing the retraction of the support rod. Compared with the existing distance measuring wheel operator squatting and manually retracting the support rod, the utility model only needs to move the sliding sleeve in the direction close to the fixed sleeve to realize the retraction of the support rod, so that the retraction of the support rod is faster and more efficient, the time of retracting the support rod is reduced, and the distance measuring efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 for Figure 2 A cross-sectional schematic diagram along the BB direction;

[0021] Figure 4 This is a reference diagram of the state where the support rods are stretched out;

[0022] Figure 5 for Figure 4 The enlarged structural diagram at C in the middle;

[0023] Figure 6 A schematic diagram of the structure of the support rod.

[0024] Wherein: 1. mounting tube; 2. sliding sleeve; 3. distance measuring wheel; 4. support rod; 5. connecting rod; 6. fixing sleeve; 7. limit plate; 8. locking rod; 9. arc-shaped locking rod; 10. limit block; 11. locking hole; 12. limit end face; 13. counting device; 14. guide rod; 15. guide hole; 16. arc-shaped push plate; 17. avoidance groove; 18. connecting plate; 19. fixing plate; 20. first compression spring; 21. guide slope; 22. arc-shaped guide groove; 23. second compression spring; 24 support frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-Figure 6 As shown together, a hand-pushed distance measuring wheel for construction comprises a mounting tube 1, on which a sliding sleeve 2 is sleeved, a distance measuring wheel 3 is rotatably mounted at the lower end of the mounting tube 1, a support rod 4 is arranged on one side of the distance measuring wheel 3, the upper end of the support rod 4 is hinged on the sliding sleeve 2, a connecting rod 5 is hinged between the mounting tube 1 and the support rod 4, a fixed sleeve 6 and a limiting plate 7 for limiting the sliding sleeve 2 are also fixedly mounted on the mounting tube 1, the fixed sleeve 6 is arranged above the sliding sleeve 2, the sliding sleeve 2 is slidably mounted between the fixed sleeve 6 and the limiting plate 7, the sliding sleeve 2 is connected to a first resetting element for pressing the sliding sleeve 2 against the limiting plate 7, the outer diameter of the upper end of the sliding sleeve 2 is smaller than the inner diameter of the fixed sleeve 6, and a locking assembly is arranged between the sliding sleeve 2 and the fixed sleeve 6.

[0027] The locking assembly includes a locking rod 8 slidably installed on the fixed sleeve 6 along the radial direction of the fixed sleeve 6, the locking rod 8 includes an arc-shaped locking rod 9 arranged in the fixed sleeve 6, a second reset element is arranged between the arc-shaped locking rod 9 and the inner wall of the fixed sleeve 6, a limit block 10 is fixedly installed on the inner side of the arc-shaped locking rod 9, a locking hole 11 is arranged on the side wall of the sliding sleeve 2, and a limit end face 12 adapted to the limit block 10 is arranged at the upper end of the locking hole 11.

[0028] It also includes a counting device 13 installed on the installation pipe 1 for recording measurement data. In the present utility model, the counting device 13 is an electronic counter.

[0029] Among them, a guide rod 14 is fixedly installed at both ends of the arc-shaped locking rod 9, two guide holes 15 are provided on the fixed sleeve 6, the free ends of the two guide rods 14 pass through the corresponding guide holes 15 respectively and are fixedly installed with an arc-shaped push plate 16, and the two guide rods 14 are respectively arranged on both sides of the sliding sleeve 2.

[0030] In addition, two avoidance grooves 17 are symmetrically arranged on the mounting tube 1, and the two avoidance grooves 17 are arranged along the axial direction of the mounting tube 1. A connecting plate 18 is arranged in the mounting tube 1, and both ends of the connecting plate 18 pass through the corresponding avoidance grooves 17 and are fixedly installed on the sliding sleeve 2. A fixing plate 19 is fixedly installed on the inner wall of the mounting tube 1, and the fixing plate 19 is arranged above the sliding sleeve 2. The first reset element includes a first compression spring 20, and the first compression spring 20 is arranged between the connecting plate 18 and the fixing plate 19.

[0031] In addition, a guide slope 21 inclined outward is provided between the limiting end face 12 and the outer wall of the sliding sleeve 2. In the utility model, the setting of the guide slope 21 allows the arc-shaped locking rod 9 to be moved away from the sliding sleeve 2 during the upward movement of the sliding sleeve 2, and further moves the limiting block 10 to the position of the locking hole 11, so that the limiting block 10 abuts against the limiting end face 12, thereby locking the sliding sleeve 2.

[0032] Secondly, an arc-shaped guide groove 22 is provided on the inner wall of the fixing sleeve 6, and the second reset element includes a second compression spring 23, which is provided between the inner wall of the arc-shaped guide groove 22 and the arc-shaped locking rod 9. In the utility model, the arc-shaped guide groove 22 is provided for guiding the arc-shaped rod.

[0033] like Figure 6 As shown, a triangular support frame 24 is fixedly mounted on the lower end of the support rod 4.

[0034] In summary, the utility model realizes the automatic expansion of the support rod, reduces the time for the inspection personnel to expand the support rod, and improves the distance measurement efficiency.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hand-pushed distance measuring wheel for construction, including a mounting tube, characterized in that: The mounting tube is provided with a sliding sleeve, a measuring wheel is rotatably mounted on the lower end of the mounting tube, a support rod is provided on one side of the measuring wheel, the upper ends of the support rods are hinged on the sliding sleeve, a connecting rod is hinged between the mounting tube and the support rod, a fixing sleeve and a limiting plate for limiting the sliding sleeve are also fixedly mounted on the mounting tube, the fixing sleeve is arranged above the sliding sleeve, the sliding sleeve is slidably mounted between the fixing sleeve and the limiting plate, the sliding sleeve is connected with a first reset element for pressing the sliding sleeve against the limiting plate, the outer diameter of the upper end of the sliding sleeve is smaller than the inner diameter of the fixing sleeve, and a locking assembly is provided between the sliding sleeve and the fixing sleeve; The locking assembly comprises a locking rod slidably mounted on the fixing sleeve along the radial direction of the fixing sleeve, the locking rod comprises an arc-shaped locking rod arranged in the fixing sleeve, a second reset element is arranged between the arc-shaped locking rod and the inner wall of the fixing sleeve, a limit block is fixedly mounted on the inner side of the arc-shaped locking rod, a locking hole is arranged on the side wall of the sliding sleeve, and a limit end face adapted to the limit block is arranged at the upper end of the locking hole; It also includes a counting device installed on the installation tube for recording measurement data.

2. The hand-pushed distance measuring wheel for construction according to claim 1, characterized in that: A guide rod is fixedly installed at both ends of the arc-shaped locking rod, and two guide holes are arranged on the fixed sleeve. The free ends of the two guide rods pass through the corresponding guide holes and are fixedly installed with an arc-shaped push plate. The two guide rods are respectively arranged on both sides of the sliding sleeve.

3. The hand-pushed distance measuring wheel for construction according to claim 1, characterized in that: Two avoidance grooves are symmetrically arranged on the mounting tube, and the two avoidance grooves are arranged along the axial direction of the mounting tube. A connecting plate is arranged in the mounting tube, and both ends of the connecting plate pass through the corresponding avoidance grooves and are fixedly installed on the sliding sleeve. A fixing plate is fixedly installed on the inner wall of the mounting tube, and the fixing plate is arranged above the sliding sleeve. The first reset element includes a first compression spring, and the first compression spring is arranged between the connecting plate and the fixing plate.

4. The hand-pushed distance measuring wheel for construction according to claim 1, characterized in that: A guiding inclined surface inclined outward is arranged between the limiting end surface and the outer wall of the sliding sleeve.

5. The hand-pushed distance measuring wheel for construction according to claim 1, characterized in that: An arc-shaped guide groove is arranged on the inner wall of the fixing sleeve, and the second reset element comprises a second compression spring, and the second compression spring is arranged between the inner wall of the arc-shaped guide groove and the arc-shaped locking rod.

6. The construction hand-pushed distance measuring wheel according to any one of claims 1 to 5, characterized in that: A triangular support frame is fixedly mounted on the lower end of the support rod.

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